fix: add build names, use TEST_BUILDS constant, redirect errors to stderr

- Add TEST_GROUPS constant to eliminate magic number
- Use stdout for info messages, stderr for errors only
- Remove redundant comments and dead code
- Add CI check before copying coverage.info
- Unify variable declaration order
- Add port allocation explanation comment
- Restore /* 50ms */ inline comment
- Update CONTRIBUTING.md with build 1 description

.github/workflows/ci-code.yml

@@ -98,3 +98,13 @@ jobs:
       - name: Check spelling
         run: |
           codespell
+
+  coverage:
+    runs-on: ubuntu-latest
+    name: Code Coverage
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build and run coverage
+        run: |
+          docker build -f Dockerfile.arch -t profanity-cov .
+          docker run profanity-cov ./ci-build.sh --coverage-only

.gitignore

@@ -62,6 +62,8 @@ tests/unittests/unittests
 tests/unittests/unittests.log
 tests/unittests/unittests.trs
 test-suite.log
+test-files/
+test-logs/
 
 # valgrind output
 profval*
@@ -107,3 +109,8 @@ breaks
 *.tar.*
 *.zip
 *.log*
+coverage/
+*.gcno
+*.gcda
+*.gcov
+coverage.info

CONTRIBUTING.md

@@ -90,6 +90,24 @@ set -e
 ```
 
 This will run the same tests that the CI runs and refuse the push if it fails.
+The CI script runs 4 parallel builds with different configurations:
+- **Full** — all features enabled (+ coverage in `--coverage-only` mode)
+- **Minimal** — all optional features disabled
+- **NoEncrypt** — no encryption (OTR, PGP, OMEMO disabled)
+- **Default** — default ./configure options
+
+Each build runs Valgrind and functional tests on Linux.
+Use `./ci-build.sh --coverage-only` to run only the Full build with coverage collection.
+
+Output shows test results per build:
+```
+✓ Full PASSED
+  Unit tests:       437 passed, 0 failed
+  Functional tests: 69 passed, 0 failed
+  Coverage:         Lines: 27.5% | Functions: 36.2% | Branches: 18.1%
+  Duration:         5m39s
+```
+
 Note that it will run on the actual content of the repository directory and not
 what may have been staged/committed.
 
@@ -138,37 +156,54 @@ You can run the `make spell` command for this.
 `make doublecheck` will run the code formatter, spell checker and unit tests.
 
 
-### Functional tests: moving away from brittle ID hooks
+### Functional tests
 
-Historically the functional test suite relied on stabber's id based helpers like `stbbr_for_id("prof_presence_1", ...)` to register canned responses that would be sent once Profanity emitted a stanza carrying that exact `id` attribute. This made the tests fragile:
+The functional test suite uses [stabber](https://git.jabber.space/devs/stabber) as a mock XMPP server. Tests are located in `tests/functionaltests/`.
 
-* Changes to stanza id generation (sequence, format) broke tests unexpectedly.
+#### Running functional tests
-* Reordering internal requests produced hard-to-debug race conditions when an `id` no longer matched.
-* Parallel additions of new features could shift which stanzas received a given id causing unrelated test failures.
 
-We have migrated to content based stubbing using direct sends (`stbbr_send`) and query hooks (`stbbr_for_query`). Instead of tying a response to a predicted id we now send the required server stanzas explicitly after initiating actions. Example (see `tests/functionaltests/proftest.c`):
+Functional tests require stabber to be installed. Once installed, tests run as part of `make check`:
 
-```c
+```bash
-// Old brittle approach
+make check                      # Run all tests (unit + functional)
-stbbr_for_id("prof_presence_1", "<presence id='prof_presence_1' ...>");
+make check-functional-parallel  # Run functional tests in parallel (~3x faster)
-
+./tests/functionaltests/functionaltests    # Run all functional tests sequentially
-// New approach: after authentication, send presence directly
+./tests/functionaltests/functionaltests 1  # Run specific group (1-4)
-stbbr_send("<presence from='stabber@localhost/profanity' to='stabber@localhost/profanity'>...caps...</presence>");
 ```
 
-Benefits:
+#### Test groups
 
-* Eliminates dependency on internal id sequencing.
+Tests are organized into 4 groups for parallel execution:
-* Clearer intent inside test code ("send presence now" vs "register hook and hope client triggers it").
-* Simplifies adding new tests—no need to inspect logs for generated ids.
 
-Guidelines when writing new functional tests:
+| Group | Description |
+|-------|-------------|
+| 1 | Connect, Ping, Rooms, Software |
+| 2 | Message, Receipts, Roster, Chat Session |
+| 3 | Presence, Disconnect |
+| 4 | MUC, Carbons |
 
-1. Prefer `stbbr_for_query(namespace, xml)` for IQ roster or disco queries where the namespace is stable.
+To add a new group:
-2. Use `stbbr_send(xml)` for presence, message, and other push style stanzas.
+1. Define the test array in `functionaltests.c`
-3. Avoid `stbbr_for_id` unless the protocol flow genuinely requires correlating a specific request/response pair not covered by a namespace query.
+2. Add entry to `groups[]` array
-4. Keep assertions tolerant of ordering when possible; rely on `prof_output_regex()` matches rather than hard-coded positions.
+3. Update `FUNC_TEST_GROUPS` in `Makefile.am`
-5. If timing flakiness appears, temporarily raise `prof_timeout()` around the critical expectation and reset it immediately afterwards.
 
-The migration from `stbbr_for_id` is complete. All functional tests now use content-based stubbing. When adding new tests, follow the guidelines above.
+#### Writing functional tests
+
+Use content-based stubbing with stabber:
+
+```c
+// Use stbbr_for_query for IQ queries (roster, disco, etc.)
+stbbr_for_query("jabber:iq:roster", "<iq type='result'>...</iq>");
+
+// Use stbbr_send for presence, message, and push-style stanzas
+stbbr_send("<presence from='buddy@localhost'>...</presence>");
+```
+
+Guidelines:
+
+1. Use `stbbr_for_query(namespace, xml)` for IQ queries where the namespace is stable.
+2. Use `stbbr_send(xml)` for presence, message, and other push-style stanzas.
+3. Keep assertions tolerant of ordering when possible; use `prof_output_regex()` for flexible matching.
+4. If timing issues appear, use `prof_timeout()` around critical expectations and reset afterwards.
+5. When adding new tests, place them in the appropriate group based on functionality.
 

Dockerfile.arch

@@ -1,6 +1,7 @@
 FROM archlinux
 
 ENV TERM=xterm
+ENV CC="ccache gcc"
 
 RUN pacman -Syu --noconfirm
 # reflector is optional - if it fails due to network issues, continue with default mirrorlist
@@ -12,9 +13,12 @@ RUN pacman -S --needed --noconfirm \
   autoconf-archive \
   automake \
   base-devel \
+  ca-certificates \
+  ccache \
   check \
   cmake \
   cmocka \
+  lcov \
   curl \
   debuginfod \
   doxygen \
@@ -61,12 +65,12 @@ USER root
 RUN pacman -U --noconfirm libstrophe-git/libstrophe-git-*.pkg.tar.zst
 
 WORKDIR /usr/src
-RUN git clone -c http.sslverify=false https://git.jabber.space/devs/stabber
+RUN git clone --depth 1 https://git.jabber.space/devs/stabber
 
 WORKDIR /usr/src/stabber
 RUN ./bootstrap.sh
 RUN ./configure --prefix=/usr --disable-dependency-tracking
-RUN make
+RUN make -j$(nproc)
 RUN make install
 
 WORKDIR /usr/src/profanity

Dockerfile.debian

@@ -3,13 +3,17 @@ FROM debian:testing
 
 ENV DEBIAN_FRONTEND="noninteractive"
 ENV TERM=xterm
+ENV CC="ccache gcc"
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
   autoconf \
   autoconf-archive \
   automake \
+  ca-certificates \
+  ccache \
   gcc \
   git \
+  lcov \
   libcmocka-dev \
   libcurl3-dev \
   libgcrypt-dev \
@@ -37,19 +41,19 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 RUN mkdir -p /usr/src/{stabber,libstrophe,profanity}
 WORKDIR /usr/src
 
-RUN git clone -c http.sslverify=false https://git.jabber.space/devs/stabber
+RUN git clone --depth 1 https://git.jabber.space/devs/stabber
-RUN git clone -c http.sslverify=false https://github.com/strophe/libstrophe
+RUN git clone --depth 1 https://github.com/strophe/libstrophe
 
 WORKDIR /usr/src/stabber
 RUN ./bootstrap.sh
 RUN ./configure --prefix=/usr --disable-dependency-tracking
-RUN make
+RUN make -j$(nproc)
 RUN make install
 
 WORKDIR /usr/src/libstrophe
 RUN ./bootstrap.sh
 RUN ./configure --prefix=/usr
-RUN make
+RUN make -j$(nproc)
 RUN make install
 
 WORKDIR /usr/src/profanity

Dockerfile.fedora

@@ -1,6 +1,9 @@
 # Build the latest Fedora image
 FROM fedora:latest
 
+ENV TERM=xterm
+ENV CC="ccache gcc"
+
 # libmicrohttpd - for stabber
 # glibc-locale - to have en_US locale
 RUN dnf install -y \
@@ -8,8 +11,11 @@ RUN dnf install -y \
   autoconf-archive \
   automake \
   awk \
+  ca-certificates \
+  ccache \
   gcc \
   git \
+  lcov \
   glib2-devel \
   glibc-all-langpacks \
   gtk2-devel \
@@ -45,20 +51,20 @@ ENV TERM=xterm
 RUN mkdir -p /usr/src
 WORKDIR /usr/src
 
-RUN git clone -c http.sslverify=false https://git.jabber.space/devs/stabber
+RUN git clone --depth 1 https://git.jabber.space/devs/stabber
 WORKDIR /usr/src/stabber
 RUN ./bootstrap.sh
 RUN ./configure --prefix=/usr --disable-dependency-tracking
-RUN make
+RUN make -j$(nproc)
 RUN make install
 
 WORKDIR /usr/src
 RUN mkdir -p /usr/src/libstrophe
-RUN git clone -c http.sslverify=false https://github.com/strophe/libstrophe
+RUN git clone --depth 1 https://github.com/strophe/libstrophe
 WORKDIR /usr/src/libstrophe
 RUN ./bootstrap.sh
 RUN ./configure --prefix=/usr
-RUN make
+RUN make -j$(nproc)
 RUN make install
 
 RUN mkdir -p /usr/src/profanity

Dockerfile.tumbleweed

@@ -1,14 +1,20 @@
 # Build the latest openSUSE Tumbleweed image
 FROM opensuse/tumbleweed
 
+ENV TERM=xterm
+ENV CC="ccache gcc"
+
 # libmicrohttpd - for stabber
 # glibc-locale - to have en_US locale
 RUN zypper --non-interactive in --no-recommends \
   autoconf \
   autoconf-archive \
   automake \
+  ca-certificates \
+  ccache \
   gcc \
   git \
+  lcov \
   glib2-devel \
   glibc-locale \
   gtk2-devel \
@@ -44,11 +50,11 @@ ENV TERM=xterm
 RUN mkdir -p /usr/src
 WORKDIR /usr/src
 
-RUN git clone -c http.sslverify=false https://git.jabber.space/devs/stabber
+RUN git clone --depth 1 https://git.jabber.space/devs/stabber
 WORKDIR /usr/src/stabber
 RUN ./bootstrap.sh
 RUN ./configure --prefix=/usr --disable-dependency-tracking
-RUN make
+RUN make -j$(nproc)
 RUN make install
 
 RUN mkdir -p /usr/src/profanity

Dockerfile.ubuntu

@@ -2,13 +2,17 @@ FROM ubuntu:latest
 
 ENV DEBIAN_FRONTEND="noninteractive"
 ENV TERM=xterm
+ENV CC="ccache gcc"
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
   autoconf \
   autoconf-archive \
   automake \
+  ca-certificates \
+  ccache \
   gcc \
   git \
+  lcov \
   libcmocka-dev \
   libcurl3-dev \
   libgcrypt-dev \
@@ -36,19 +40,19 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 RUN mkdir -p /usr/src/{stabber,libstrophe,profanity}
 WORKDIR /usr/src
 
-RUN git clone -c http.sslverify=false https://git.jabber.space/devs/stabber
+RUN git clone --depth 1 https://git.jabber.space/devs/stabber
-RUN git clone -c http.sslverify=false https://github.com/strophe/libstrophe
+RUN git clone --depth 1 https://github.com/strophe/libstrophe
 
 WORKDIR /usr/src/stabber
 RUN ./bootstrap.sh
 RUN ./configure --prefix=/usr --disable-dependency-tracking
-RUN make
+RUN make -j$(nproc)
 RUN make install
 
 WORKDIR /usr/src/libstrophe
 RUN ./bootstrap.sh
 RUN ./configure --prefix=/usr
-RUN make
+RUN make -j$(nproc)
 RUN make install
 
 WORKDIR /usr/src/profanity

Makefile.am

@@ -286,7 +286,7 @@ endif
 
 TESTS = tests/unittests/unittests
 check_PROGRAMS = tests/unittests/unittests
-tests_unittests_unittests_CPPFLAGS = -Itests/
+tests_unittests_unittests_CPPFLAGS = -I$(srcdir)/tests
 tests_unittests_unittests_SOURCES = $(unittest_sources)
 tests_unittests_unittests_LDADD = -lcmocka
 
@@ -302,9 +302,32 @@ if HAVE_FORKPTY
 TESTS += tests/functionaltests/functionaltests
 check_PROGRAMS += tests/functionaltests/functionaltests
 tests_functionaltests_functionaltests_SOURCES = $(functionaltest_sources)
-tests_functionaltests_functionaltests_CPPFLAGS = -Itests/
+tests_functionaltests_functionaltests_CPPFLAGS = -I$(srcdir)/tests
 tests_functionaltests_functionaltests_CFLAGS = $(AM_CFLAGS)
 tests_functionaltests_functionaltests_LDADD = -lcmocka -lstabber @FORKPTY_LIB@
+
+# Parallel functional tests target (~3x faster than sequential)
+# Usage: make check-functional-parallel
+# To add more groups: increase FUNC_TEST_GROUPS and add group in functionaltests.c
+FUNC_TEST_GROUPS = 1 2 3 4
+
+check-functional-parallel: tests/functionaltests/functionaltests
+	@echo "Running functional tests in parallel ($(words $(FUNC_TEST_GROUPS)) groups)..."
+	@mkdir -p $(builddir)/test-logs $(builddir)/test-files
+	@pids=""; \
+	for g in $(FUNC_TEST_GROUPS); do \
+		./tests/functionaltests/functionaltests $$g > $(builddir)/test-logs/group$$g.log 2>&1 & \
+		pids="$$pids $$!"; \
+	done; \
+	failed=0; i=1; \
+	for pid in $$pids; do \
+		wait $$pid || { echo "Group $$i FAILED"; cat $(builddir)/test-logs/group$$i.log; failed=1; }; \
+		i=$$((i + 1)); \
+	done; \
+	echo "=== Test Results Summary ==="; \
+	grep -E 'PASSED|FAILED|Running' $(builddir)/test-logs/group*.log || true; \
+	if [ $$failed -ne 0 ]; then echo "FUNCTIONAL TESTS FAILED"; exit 1; fi; \
+	echo "All functional test groups passed!"
 endif
 endif
 
@@ -349,7 +372,10 @@ clean-local:
 	rm -f $(git_include) $(git_include).in
 endif
 
-.PHONY: my-prof.supp
+clean-functional-tests:
+	rm -rf $(builddir)/test-files $(builddir)/test-logs
+
+.PHONY: my-prof.supp clean-functional-tests
 my-prof.supp:
 	@sed '/^# AUTO-GENERATED START/q' prof.supp > $@
 	@printf "\n\n# glib\n" >> $@
@@ -365,7 +391,21 @@ check-unit: tests/unittests/unittests
 	tests/unittests/unittests
 
 @VALGRIND_CHECK_RULES@
-VALGRIND_SUPPRESSIONS_FILES=prof.supp
+VALGRIND_SUPPRESSIONS_FILES=$(srcdir)/prof.supp
+
+# Code coverage targets (requires --enable-coverage)
+coverage-clean:
+	find . -name '*.gcda' -delete
+	find . -name '*.gcno' -delete
+	rm -rf coverage-html coverage.info
+
+coverage-report: check
+	lcov --capture --directory . --output-file coverage.info --ignore-errors inconsistent
+	lcov --remove coverage.info '/usr/*' '*/tests/*' --output-file coverage.info --ignore-errors inconsistent
+	genhtml coverage.info --output-directory coverage-html
+	@echo "Coverage report generated in coverage-html/index.html"
+
+.PHONY: coverage-clean coverage-report
 
 format: $(all_c_sources)
 	clang-format -i $(all_c_sources)

ci-build.sh

@@ -15,14 +15,145 @@ error_handler()
     log_content ./test-suite.log
     log_content ./test-suite-memcheck.log
 
-    echo
+    echo >&2
-    echo "Error ${ERR_CODE} with command '${BASH_COMMAND}' on line ${BASH_LINENO[0]}. Exiting."
+    echo "Error ${ERR_CODE} with command '${BASH_COMMAND}' on line ${BASH_LINENO[0]}. Exiting." >&2
-    echo
+    echo >&2
     exit ${ERR_CODE}
 }
 
 trap error_handler ERR
 
+# =============================================================================
+# Constants
+# =============================================================================
+
+# Number of parallel build configurations
+readonly TEST_BUILDS=4
+
+# Human-readable names for each build configuration
+readonly BUILD_NAMES=(
+    "Full"      # 1. All features enabled
+    "Minimal"   # 2. All optional features disabled
+    "NoEncrypt" # 3. No encryption (otr, pgp, omemo disabled)
+    "Default"   # 4. Default ./configure options
+)
+
+# Regex patterns for parsing test output
+readonly CMOCKA_PASSED_PATTERN='^\[  PASSED  \] [0-9]+ test'
+readonly CMOCKA_FAILED_PATTERN='^\[  FAILED  \] [0-9]+ test'
+
+# Coverage extraction patterns (matches both Docker and CI paths)
+readonly COVERAGE_PATTERNS='*/profanity/src/* */src/src/*'
+
+# =============================================================================
+# Helper Functions
+# =============================================================================
+
+# Parse STATS line from build log and set global variables
+# Usage: parse_build_stats <log_file>
+parse_build_stats() {
+    local log_file="$1"
+    local stats_line
+    stats_line=$(grep "^STATS:" "$log_file" 2>/dev/null | tail -1)
+    
+    STAT_UNIT_P=$(echo "$stats_line" | grep -oE "unit_passed=[0-9]+" | cut -d= -f2)
+    STAT_UNIT_F=$(echo "$stats_line" | grep -oE "unit_failed=[0-9]+" | cut -d= -f2)
+    STAT_FUNC_P=$(echo "$stats_line" | grep -oE "func_passed=[0-9]+" | cut -d= -f2)
+    STAT_FUNC_F=$(echo "$stats_line" | grep -oE "func_failed=[0-9]+" | cut -d= -f2)
+    STAT_COV_LINES=$(echo "$stats_line" | grep -oE "cov_lines=[0-9.]+%|cov_lines=n/a" | cut -d= -f2)
+    STAT_COV_FUNCS=$(echo "$stats_line" | grep -oE "cov_funcs=[0-9.]+%|cov_funcs=n/a" | cut -d= -f2)
+    STAT_COV_BRANCHES=$(echo "$stats_line" | grep -oE "cov_branches=[0-9.]+%|cov_branches=n/a" | cut -d= -f2)
+    STAT_TIME=$(echo "$stats_line" | grep -oE "time=[0-9]+m[0-9]+s" | cut -d= -f2)
+    
+    : "${STAT_UNIT_P:=0}"
+    : "${STAT_UNIT_F:=0}"
+    : "${STAT_FUNC_P:=0}"
+    : "${STAT_FUNC_F:=0}"
+}
+
+# Extract test count from log file
+# Usage: extract_test_count <log_file> <pattern>
+extract_test_count() {
+    grep -E "$2" "$1" 2>/dev/null | grep -oE "[0-9]+" | head -1
+}
+
+# =============================================================================
+# Test Verification
+# =============================================================================
+
+# Verify that test failures are properly detected
+# This is a meta-test: it runs a deliberately failing test
+# and checks that the test framework reports the failure correctly
+verify_test_failure_detection()
+{
+    echo
+    echo "==> Verifying test failure detection..."
+    
+    # Create a simple failing test
+    cat > /tmp/test_must_fail.c << 'EOF'
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <cmocka.h>
+
+static void test_that_must_fail(void **state) {
+    (void)state;
+    assert_true(0); // This MUST fail
+}
+
+int main(void) {
+    const struct CMUnitTest tests[] = {
+        cmocka_unit_test(test_that_must_fail),
+    };
+    return cmocka_run_group_tests(tests, NULL, NULL);
+}
+EOF
+    
+    # Compile the failing test
+    if ! gcc -o /tmp/test_must_fail /tmp/test_must_fail.c -lcmocka 2>/dev/null; then
+        echo "Warning: Could not compile test failure verification (cmocka not available?)"
+        echo "Skipping test failure detection verification"
+        return 0
+    fi
+    
+    # Test 1: Single failing test detection
+    echo "  Testing single test failure detection..."
+    if /tmp/test_must_fail > /tmp/test_must_fail.log 2>&1; then
+        echo "ERROR: Test that should fail returned success (exit code 0)" >&2
+        echo "This means the test framework is NOT detecting failures correctly!" >&2
+        echo "--- Test output ---" >&2
+        cat /tmp/test_must_fail.log >&2
+        echo "--- End output ---" >&2
+        rm -f /tmp/test_must_fail /tmp/test_must_fail.c /tmp/test_must_fail.log
+        exit 1
+    fi
+    echo "  ✓ Single test failure correctly detected"
+    
+    # Test 2: Parallel failure detection (simulates check-functional-parallel)
+    echo "  Testing parallel test failure detection..."
+    failed=0
+    /tmp/test_must_fail > /tmp/p1.log 2>&1 & pid1=$!
+    true > /tmp/p2.log 2>&1 & pid2=$!  # This passes
+    /tmp/test_must_fail > /tmp/p3.log 2>&1 & pid3=$!
+    true > /tmp/p4.log 2>&1 & pid4=$!  # This passes
+    
+    wait $pid1 || failed=$((failed + 1))
+    wait $pid2 || failed=$((failed + 1))
+    wait $pid3 || failed=$((failed + 1))
+    wait $pid4 || failed=$((failed + 1))
+    
+    if [ $failed -ne 2 ]; then
+        echo "ERROR: Expected 2 failures in parallel tests, got $failed" >&2
+        echo "Parallel failure detection is broken!" >&2
+        rm -f /tmp/test_must_fail /tmp/test_must_fail.c /tmp/test_must_fail.log /tmp/p?.log
+        exit 1
+    fi
+    echo "  ✓ Parallel test failures correctly detected (2 of 4 failed as expected)"
+    
+    rm -f /tmp/test_must_fail /tmp/test_must_fail.c /tmp/test_must_fail.log /tmp/p?.log
+    echo "✓ Test failure detection verified"
+}
+
 num_cores()
 {
     # Check for cores, for systems with:
@@ -34,6 +165,20 @@ num_cores()
         || getconf _NPROCESSORS_ONLN 2>/dev/null
 }
 
+# Run test failure detection verification first
+verify_test_failure_detection
+
+# Parse arguments
+COVERAGE_ONLY=no
+for arg in "$@"; do
+    case "$arg" in
+        --coverage-only)
+            COVERAGE_ONLY=yes
+            shift
+            ;;
+    esac
+done
+
 ./bootstrap.sh
 
 tests=()
@@ -44,7 +189,7 @@ ARCH="$(uname | tr '[:upper:]' '[:lower:]')"
 
 case "$ARCH" in
     linux*)
-        # Reduced set of configurations for faster CI
+        # 4 configurations for parallel CI
         tests=(
         # 1. Full build (all features enabled)
         "--enable-notifications --enable-icons-and-clipboard --enable-otr --enable-pgp
@@ -56,15 +201,13 @@ case "$ARCH" in
         --disable-python-plugins --without-xscreensaver --disable-omemo-qrcode --disable-gdk-pixbuf"
         # 3. No encryption (disable otr, pgp, omemo)
         "--disable-pgp --disable-otr --disable-omemo --disable-omemo-qrcode"
-        # 4. No plugins
+        # 4. Default configuration
-        "--disable-plugins --disable-c-plugins --disable-python-plugins"
-        # 5. Default configuration
         ""
         )
         source /etc/profile.d/debuginfod.sh 2>/dev/null || true
         ;;
     darwin*)
-        # Reduced set of configurations for faster CI
+        # 4 configurations for parallel CI
         tests=(
         # 1. Full build (all features enabled)
         "--enable-notifications --enable-icons-and-clipboard --enable-otr --enable-pgp
@@ -76,9 +219,7 @@ case "$ARCH" in
         --disable-python-plugins"
         # 3. No encryption (disable otr, pgp, omemo)
         "--disable-pgp --disable-otr --disable-omemo"
-        # 4. No plugins
+        # 4. Default configuration
-        "--disable-plugins --disable-c-plugins --disable-python-plugins"
-        # 5. Default configuration
         ""
         )
         ;;
@@ -90,7 +231,7 @@ case "$ARCH" in
         # src/event/server_events.c:1454:19: error: universal character names are only valid in C++ and C99
         CC="egcc -std=gnu99 -fexec-charset=UTF-8"
 
-        # Reduced set of configurations for faster CI
+        # 4 configurations for parallel CI
         tests=(
         # 1. Full build (all features enabled)
         "--enable-notifications --enable-icons-and-clipboard --enable-otr --enable-pgp
@@ -102,45 +243,230 @@ case "$ARCH" in
         --disable-python-plugins"
         # 3. No encryption (disable otr, pgp, omemo)
         "--disable-pgp --disable-otr --disable-omemo"
-        # 4. No plugins
+        # 4. Default configuration
-        "--disable-plugins --disable-c-plugins --disable-python-plugins"
-        # 5. Default configuration
         ""
         )
         ;;
 esac
 
-case "$ARCH" in
+# Function to build and test a single configuration
-    linux*)
+build_and_test() {
-         echo
+    local features="$1"
-         echo "--> Building with ./configure ${tests[0]} --enable-valgrind $*"
+    local extra_args="$2"
-         echo
+    local idx="$3"
+    local run_valgrind="$4"
+    local run_coverage="$5"
+    local build_dir="build-$idx"
+    local log_file="build-$idx.log"
 
-         # shellcheck disable=SC2086
+    {
-        ./configure ${tests[0]} --enable-valgrind $*
+        echo "=== Build $idx started at $(date) ==="
+        echo "--> Building in $build_dir with ./configure -C $features $extra_args"
 
-        $MAKE CC="${CC}"
+        local start_time=$SECONDS
-        if grep '^ID=' /etc/os-release | grep -q -e debian; then
+
-            $MAKE check-valgrind
+        mkdir -p "$build_dir"
-        else
+        cd "$build_dir"
-            $MAKE check-valgrind || log_content ./test-suite-memcheck.log
+
+        # shellcheck disable=SC2086
+        if ! ../configure -C $features $extra_args; then
+            echo "ERROR: configure failed"
+            exit 1
         fi
-        $MAKE distclean
-        ;;
-esac
 
-for features in "${tests[@]}"
+        if ! $MAKE CC="${CC}"; then
-do
+            echo "ERROR: make failed"
+            exit 1
+        fi
+
+        # Run unit tests
+        local unit_passed=0 unit_failed=0
+        if [ "$run_valgrind" = "yes" ]; then
+            echo "--> Running unit tests under Valgrind..."
+            # Build unit tests first
+            $MAKE tests/unittests/unittests
+            # Run valgrind directly to capture cmocka output
+            valgrind --error-exitcode=1 --leak-check=full \
+                --suppressions=../prof.supp \
+                tests/unittests/unittests 2>&1 | tee unit-tests-output.log
+            valgrind_exit=${PIPESTATUS[0]}
+            if [ $valgrind_exit -ne 0 ]; then
+                echo "ERROR: Valgrind unit tests failed (exit code $valgrind_exit)"
+                exit 1
+            fi
+        else
+            echo "--> Running unit tests..."
+            $MAKE tests/unittests/unittests
+            tests/unittests/unittests 2>&1 | tee unit-tests-output.log
+            if [ ${PIPESTATUS[0]} -ne 0 ]; then
+                echo "ERROR: Unit tests failed"
+                exit 1
+            fi
+        fi
+        # Extract unit test counts from cmocka output
+        unit_passed=$(extract_test_count unit-tests-output.log "$CMOCKA_PASSED_PATTERN")
+        unit_failed=$(extract_test_count unit-tests-output.log "$CMOCKA_FAILED_PATTERN")
+        : "${unit_passed:=0}" "${unit_failed:=0}"
+        echo "UNIT_TESTS: passed=$unit_passed failed=$unit_failed"
+
+        # Set build index for port allocation: build 1 uses ports 5230-5233,
+        # build 2 uses 5234-5237, etc. This prevents port conflicts in parallel builds.
+        export PROF_BUILD_INDEX=$idx
+        local func_passed=0 func_failed=0
+        if ! $MAKE check-functional-parallel; then
+            echo "ERROR: functional tests failed"
+            exit 1
+        fi
+        # Extract functional test counts from group logs
+        echo "=== Functional test results ==="
+        for glog in ./test-logs/group*.log; do
+            if [ -f "$glog" ]; then
+                cnt=$(extract_test_count "$glog" "$CMOCKA_PASSED_PATTERN")
+                [ -n "$cnt" ] && func_passed=$((func_passed + cnt))
+                cnt=$(extract_test_count "$glog" "$CMOCKA_FAILED_PATTERN")
+                [ -n "$cnt" ] && func_failed=$((func_failed + cnt))
+            fi
+        done
+        echo "FUNC_TESTS: passed=$func_passed failed=$func_failed"
+
+        # Collect coverage data if enabled (lines, functions, branches)
+        # Must be done BEFORE make clean which removes .gcda files
+        local cov_lines="n/a" cov_funcs="n/a" cov_branches="n/a"
+        if [ "$run_coverage" = "yes" ]; then
+            echo "--> Collecting coverage data..."
+            if command -v lcov >/dev/null 2>&1; then
+                lcov --capture --directory . --output-file coverage-full.info \
+                    --rc lcov_branch_coverage=1 --ignore-errors inconsistent 2>&1 || true
+                # Extract only production code from src/ directory, exclude tests
+                # shellcheck disable=SC2086
+                lcov --extract coverage-full.info $COVERAGE_PATTERNS \
+                    --output-file coverage.info \
+                    --rc lcov_branch_coverage=1 --ignore-errors inconsistent 2>&1 || true
+                if [ -f coverage.info ] && [ -s coverage.info ]; then
+                    local summary
+                    summary=$(lcov --summary coverage.info \
+                        --rc lcov_branch_coverage=1 --ignore-errors inconsistent 2>&1 || true)
+                    cov_lines=$(echo "$summary" | grep -E "lines\.*:" | grep -oE "[0-9]+\.[0-9]+%" | head -1)
+                    cov_funcs=$(echo "$summary" | grep -E "functions\.*:" | grep -oE "[0-9]+\.[0-9]+%" | head -1)
+                    cov_branches=$(echo "$summary" | grep -E "branches\.*:" | grep -oE "[0-9]+\.[0-9]+%" | head -1)
+                    [ -z "$cov_lines" ] && cov_lines="n/a"
+                    [ -z "$cov_funcs" ] && cov_funcs="n/a"
+                    [ -z "$cov_branches" ] && cov_branches="n/a"
+                else
+                    echo "WARNING: coverage.info is empty or not created"
+                fi
+            else
+                echo "WARNING: lcov not found"
+            fi
+            echo "COVERAGE: lines=$cov_lines funcs=$cov_funcs branches=$cov_branches"
+        fi
+
+        ./profanity -v
+
+        # Save coverage.info before cleanup (for CI artifact)
+        # Only copy in CI environment to avoid leaving artifacts during local runs
+        if [ "$run_coverage" = "yes" ] && [ -f coverage.info ] && [ -n "$CI" ]; then
+            cp coverage.info ../coverage.info
+            echo "Coverage report saved to coverage.info"
+        fi
+
+        $MAKE clean
+
+        cd ..
+        rm -rf "$build_dir"
+
+        local elapsed=$((SECONDS - start_time))
+        local mins=$((elapsed / 60))
+        local secs=$((elapsed % 60))
+
+        echo "=== Build $idx completed at $(date) ==="
+        echo "STATS: unit_passed=$unit_passed unit_failed=$unit_failed func_passed=$func_passed func_failed=$func_failed cov_lines=$cov_lines cov_funcs=$cov_funcs cov_branches=$cov_branches time=${mins}m${secs}s"
+    } > "$log_file" 2>&1
+}
+
+# Run configurations
+# Coverage enabled only for build 1 (Full) - it has most code paths
+echo
+echo "=== Start build ==="
+echo
+
+if [ "$COVERAGE_ONLY" = "yes" ]; then
+    echo "Running coverage-only mode (${BUILD_NAMES[0]} build)..."
     echo
-    echo "--> Building with ./configure ${features} $*"
+    run_valgrind="no"
+    run_coverage="yes"
+    extra_flags="--enable-coverage"
+    build_and_test "${tests[0]}" "$* $extra_flags" "1" "$run_valgrind" "$run_coverage" &
+    pids=("$!")
+    echo "  → ${BUILD_NAMES[0]}: ${tests[0]} [+Coverage]"
+else
+    echo "Starting $TEST_BUILDS parallel build configurations..."
     echo
+    pids=()
+    for idx in $(seq 1 $TEST_BUILDS); do
+        if [ $idx -le ${#tests[@]} ]; then
+            # All builds run Valgrind on Linux
+            if [ "$ARCH" = "linux" ]; then
+                run_valgrind="yes"
+                extra_flags="--enable-valgrind"
+            else
+                run_valgrind="no"
+                extra_flags=""
+            fi
+            run_coverage="no"
+            build_and_test "${tests[$((idx-1))]}" "$* $extra_flags" "$idx" "$run_valgrind" "$run_coverage" &
+            pids+=("$!")
+            flags_desc=""
+            [ "$run_valgrind" = "yes" ] && flags_desc=" [+Valgrind]"
+            echo "  → ${BUILD_NAMES[$((idx-1))]}: ${tests[$((idx-1))]}$flags_desc"
+        fi
+    done
+fi
+echo
 
-    # shellcheck disable=SC2086
+# Wait for all builds and check exit codes
-    ./configure $features $*
+echo "Waiting for builds to complete..."
+echo
+failed_builds=()
+for i in "${!pids[@]}"; do
+    idx=$((i + 1))
+    if wait "${pids[$i]}"; then
+        if [ -f "build-$idx.log" ]; then
+            parse_build_stats "build-$idx.log"
             
-    $MAKE CC="${CC}"
+            echo "✓ ${BUILD_NAMES[$i]} PASSED"
-    $MAKE check
+            echo "  Unit tests:       $STAT_UNIT_P passed, $STAT_UNIT_F failed"
-
+            echo "  Functional tests: $STAT_FUNC_P passed, $STAT_FUNC_F failed"
-    ./profanity -v
+            if [ "$STAT_COV_LINES" != "n/a" ] && [ -n "$STAT_COV_LINES" ]; then
-    $MAKE clean
+                echo "  Coverage:         Lines: $STAT_COV_LINES | Functions: $STAT_COV_FUNCS | Branches: $STAT_COV_BRANCHES"
+            fi
+            echo "  Duration:         ${STAT_TIME:-?}"
+        else
+            echo "✓ ${BUILD_NAMES[$i]} passed (no stats available)"
+        fi
+    else
+        echo "✗ ${BUILD_NAMES[$i]} FAILED" >&2
+        failed_builds+=("$idx")
+    fi
+    echo
 done
+
+# Show failed builds full logs
+for idx in "${failed_builds[@]}"; do
+    if [ -f "build-$idx.log" ]; then
+        echo "=== ${BUILD_NAMES[$((idx-1))]} FAILURE LOG ===" >&2
+        cat "build-$idx.log" >&2
+        echo >&2
+    fi
+done
+
+if [ ${#failed_builds[@]} -gt 0 ]; then
+    echo "RESULT: FAILED (builds ${failed_builds[*]})" >&2
+    exit 1
+else
+    if [ "$COVERAGE_ONLY" = "yes" ]; then
+        echo "RESULT: COVERAGE BUILD PASSED ✓"
+    else
+        echo "RESULT: ALL $TEST_BUILDS BUILDS PASSED ✓"
+    fi
+fi

configure.ac

@@ -69,6 +69,8 @@ AC_ARG_ENABLE([gdk-pixbuf],
     [AS_HELP_STRING([--enable-gdk-pixbuf], [enable GDK Pixbuf support to scale avatars before uploading])])
 AC_ARG_ENABLE([omemo-qrcode],
     [AS_HELP_STRING([--enable-omemo-qrcode], [enable ability to display omemo qr code])])
+AC_ARG_ENABLE([coverage],
+    [AS_HELP_STRING([--enable-coverage], [enable code coverage analysis])])
 
 m4_include([m4/ax_valgrind_check.m4])
 AX_VALGRIND_DFLT([drd], [off])
@@ -386,6 +388,11 @@ AC_SUBST([FORKPTY_LIB])
 AM_CFLAGS="$AM_CFLAGS -Wall -Wno-deprecated-declarations -std=gnu99 -ggdb3"
 AM_LDFLAGS="$AM_LDFLAGS -export-dynamic"
 
+AS_IF([test "x$enable_coverage" = xyes],
+    [AM_CFLAGS="$AM_CFLAGS --coverage -O0"
+     AM_LDFLAGS="$AM_LDFLAGS --coverage"
+     AC_MSG_NOTICE([Code coverage analysis enabled])])
+
 AS_IF([test "x$PACKAGE_STATUS" = xdevelopment],
     [AM_CFLAGS="$AM_CFLAGS -Wunused -Werror"])
 AS_IF([test "x$PLATFORM" = xosx],

prof.supp

@@ -8,6 +8,29 @@
 # * python suppressions file from https://github.com/python/cpython/blob/main/Misc/valgrind-python.supp
 #
 
+# ============================================
+# glibc AVX2 optimizations (false positives)
+# See: https://sourceware.org/bugzilla/show_bug.cgi?id=19796
+# ============================================
+
+{
+  glibc_wcpncpy_avx2
+  Memcheck:Addr32
+  fun:__wcpncpy_avx2
+  fun:wcsxfrm_l
+  fun:g_utf8_collate_key
+  ...
+}
+
+{
+  glibc_wcsxfrm_avx2
+  Memcheck:Addr32
+  ...
+  fun:wcsxfrm_l
+  fun:g_utf8_collate_key
+  ...
+}
+
 # ============================================
 # Functional tests suppressions (stabber/pthread)
 # ============================================

src/ui/titlebar.c

@@ -268,7 +268,11 @@ _show_scrolled(ProfWin* current)
         wattroff(win, bracket_attrs);
 
         wattron(win, scrolled_attrs);
-        wprintw(win, "SCROLLED");
+        if (current->layout->unread_msg == 0) {
+            wprintw(win, "SCROLLED");
+        } else {
+            wprintw(win, "SCROLLED, NEW MESSAGES");
+        }
         wattroff(win, scrolled_attrs);
 
         wattron(win, bracket_attrs);

src/ui/win_types.h

@@ -120,6 +120,7 @@ typedef struct prof_layout_t
     ProfBuff buffer;
     int y_pos;
     int paged;
+    int unread_msg;
 } ProfLayout;
 
 typedef struct prof_layout_simple_t

src/ui/window.c

@@ -103,6 +103,7 @@ _win_create_simple_layout(void)
     layout->base.buffer = buffer_create();
     layout->base.y_pos = 0;
     layout->base.paged = 0;
+    layout->base.unread_msg = 0;
     scrollok(layout->base.win, TRUE);
 
     return &layout->base;
@@ -120,6 +121,7 @@ _win_create_split_layout(void)
     layout->base.buffer = buffer_create();
     layout->base.y_pos = 0;
     layout->base.paged = 0;
+    layout->base.unread_msg = 0;
     scrollok(layout->base.win, TRUE);
     layout->subwin = NULL;
     layout->sub_y_pos = 0;
@@ -197,6 +199,7 @@ win_create_muc(const char* const roomjid)
     layout->base.buffer = buffer_create();
     layout->base.y_pos = 0;
     layout->base.paged = 0;
+    layout->base.unread_msg = 0;
     scrollok(layout->base.win, TRUE);
     new_win->window.layout = (ProfLayout*)layout;
 
@@ -698,9 +701,11 @@ void
 win_page_down(ProfWin* window, int scroll_size)
 {
     int total_rows = getcury(window->layout->win);
+    int total_rows_with_unread = total_rows + window->layout->unread_msg;
     int* page_start = &(window->layout->y_pos);
     int page_space = getmaxy(stdscr) - 4;
     int page_start_initial = *page_start;
+
     if (scroll_size == 0)
         scroll_size = page_space;
     win_scroll_state_t* scroll_state = &window->scroll_state;
@@ -709,7 +714,11 @@ win_page_down(ProfWin* window, int scroll_size)
     *page_start += scroll_size;
 
     // Scrolled down after reaching the bottom of the page
-    if ((*page_start > total_rows - page_space || (*page_start == page_space && *page_start >= total_rows)) && window->type == WIN_CHAT) {
+    gboolean past_bottom = *page_start > total_rows_with_unread - page_space;
+    gboolean at_page_space_and_past_unread = (*page_start == page_space && *page_start >= total_rows_with_unread);
+    gboolean is_chat = window->type == WIN_CHAT;
+
+    if ((past_bottom || at_page_space_and_past_unread) && is_chat) {
         int bf_size = buffer_size(window->layout->buffer);
         if (bf_size > 0 && *scroll_state != WIN_SCROLL_REACHED_BOTTOM) {
             // How many lines are left until end of the screen
@@ -743,13 +752,16 @@ win_page_down(ProfWin* window, int scroll_size)
     window->layout->paged = 1;
 
     // update only if position has changed
-    if (page_start_initial != *page_start) {
+    if ((page_start_initial != *page_start) || window->layout->unread_msg) {
         win_update_virtual(window);
     }
 
-    // switch off page if last line and space line visible
+    /* Switch off page if no messages left to read.
-    if (total_rows - *page_start == page_space) {
+     * TODO: update buffer end handling to check messages just after last entry.
+     */
+    if (*scroll_state == WIN_SCROLL_REACHED_BOTTOM) {
         window->layout->paged = 0;
+        window->layout->unread_msg = 0;
     }
 }
 
@@ -810,6 +822,7 @@ win_clear(ProfWin* window)
     int* page_start = &(window->layout->y_pos);
     *page_start = y;
     window->layout->paged = 1;
+    window->layout->unread_msg = 0;
     win_update_virtual(window);
 }
 
@@ -914,6 +927,7 @@ void
 win_move_to_end(ProfWin* window)
 {
     window->layout->paged = 0;
+    window->layout->unread_msg = 0;
 
     int rows = getmaxy(stdscr);
     int y = getcury(window->layout->win);
@@ -1696,6 +1710,13 @@ win_newline(ProfWin* window)
 static void
 _win_printf(ProfWin* window, const char* show_char, int pad_indent, GDateTime* timestamp, int flags, theme_item_t theme_item, const char* const display_from, const char* const from_jid, const char* const message_id, const char* const message, ...)
 {
+
+    /* Prevent printing and buffer update when user is viewing message history [SCROLLING]*/
+    if (window->layout->paged && wins_is_current(window)) {
+        window->layout->unread_msg++;
+        return;
+    }
+
     if (timestamp == NULL) {
         timestamp = g_date_time_new_now_local();
     } else {

tests/functionaltests/functionaltests.c

@@ -14,21 +14,31 @@
  * flaky tests caused by leftover state. The overhead is acceptable since
  * functional tests run less frequently than unit tests.
  *
- * Tests are organized into groups for better maintainability:
+ * Tests are organized into groups for better maintainability and parallel execution:
- *   Group 1: Connection, Ping, Rooms, Presence
+ *   Group 1: Connect, Ping, Rooms, Software
- *   Group 2: Messages, Receipts, Roster management
+ *   Group 2: Message, Receipts, Roster, Chat Session
- *   Group 3: MUC (Multi-User Chat) functionality
+ *   Group 3: Presence, Disconnect
- *   Group 4: Carbons, Chat sessions, Software version, Disconnect
+ *   Group 4: MUC, Carbons
+ *
+ * Parallel execution:
+ *   ./functionaltests        - run all tests sequentially
+ *   ./functionaltests N      - run group N only (N = 1..num_groups)
+ *
+ * For parallel execution, run multiple groups simultaneously:
+ *   ./functionaltests 1 & ./functionaltests 2 & ./functionaltests 3 & ./functionaltests 4 & wait
  */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <unistd.h>
 #include <fcntl.h>
+#include <string.h>
 #include "prof_cmocka.h"
 #include <sys/stat.h>
 
 #include "config.h"
 
+#include "common.h"
 #include "proftest.h"
 #include "test_connect.h"
 #include "test_ping.h"
@@ -49,13 +59,27 @@
 int
 main(int argc, char* argv[])
 {
-    const struct CMUnitTest all_tests[] = {
+    int group = 0;  /* 0 = all groups */
+    if (argc > 1) {
+        group = atoi(argv[1]);
+        if (group < 1 || group > 4) {
+            fprintf(stderr, "Usage: %s [group]\n", argv[0]);
+            fprintf(stderr, "  group: 1-4 to run specific group, or omit for all\n");
+            return 1;
+        }
+    }
 
-        /* ============================================================
+    char group_env[16];
-         * GROUP 1: Connect, Ping, Rooms, Presence
+    snprintf(group_env, sizeof(group_env), "%d", group);
-         * Basic XMPP session establishment and presence management
+    setenv("PROF_TEST_GROUP", group_env, 1);
-         * ============================================================ */
     
+    fprintf(stderr, "[PROF_TEST] Starting functional tests, group=%d\n", group);
+
+    /* ============================================================
+     * GROUP 1: Connect, Ping, Rooms, Software
+     * Basic XMPP session establishment and server queries
+     * ============================================================ */
+    const struct CMUnitTest group1_tests[] = {
         /* Connection tests - verify login, roster, bookmarks */
         PROF_FUNC_TEST(connect_jid_requests_roster),
         PROF_FUNC_TEST(connect_jid_sends_presence_after_receiving_roster),
@@ -73,28 +97,20 @@ main(int argc, char* argv[])
         /* Room discovery - XEP-0045 */
         PROF_FUNC_TEST(rooms_query),
 
-        /* Presence tests - online/away/xa/dnd/chat status */
+        /* Software Version - XEP-0092 */
-        PROF_FUNC_TEST(presence_online),
+        PROF_FUNC_TEST(send_software_version_request),
-        PROF_FUNC_TEST(presence_online_with_message),
+        PROF_FUNC_TEST(display_software_version_result),
-        PROF_FUNC_TEST(presence_away),
+        PROF_FUNC_TEST(shows_message_when_software_version_error),
-        PROF_FUNC_TEST(presence_away_with_message),
+        PROF_FUNC_TEST(display_software_version_result_when_from_domainpart),
-        PROF_FUNC_TEST(presence_xa),
+        PROF_FUNC_TEST(show_message_in_chat_window_when_no_resource),
-        PROF_FUNC_TEST(presence_xa_with_message),
+        PROF_FUNC_TEST(display_software_version_result_in_chat),
-        PROF_FUNC_TEST(presence_dnd),
+    };
-        PROF_FUNC_TEST(presence_dnd_with_message),
-        PROF_FUNC_TEST(presence_chat),
-        PROF_FUNC_TEST(presence_chat_with_message),
-        PROF_FUNC_TEST(presence_set_priority),
-        PROF_FUNC_TEST(presence_includes_priority),
-        PROF_FUNC_TEST(presence_keeps_status),
-        PROF_FUNC_TEST(presence_received),
-        PROF_FUNC_TEST(presence_missing_resource_defaults),
-
-        /* ============================================================
-         * GROUP 2: Message, Receipts, Roster
-         * Core messaging and contact management
-         * ============================================================ */
 
+    /* ============================================================
+     * GROUP 2: Message, Receipts, Roster, Chat Session
+     * Core messaging and contact management
+     * ============================================================ */
+    const struct CMUnitTest group2_tests[] = {
         /* Basic message send/receive */
         PROF_FUNC_TEST(message_send),
         PROF_FUNC_TEST(message_receive_console),
@@ -112,21 +128,54 @@ main(int argc, char* argv[])
         PROF_FUNC_TEST(sends_remove_item_nick),
         PROF_FUNC_TEST(sends_nick_change),
 
-        /* ============================================================
+        /* Chat session management - bare/full JID routing */
-         * GROUP 3: MUC (Multi-User Chat)
+        PROF_FUNC_TEST(sends_message_to_barejid_when_contact_offline),
-         * XEP-0045 conference room functionality
+        PROF_FUNC_TEST(sends_message_to_barejid_when_contact_online),
-         * ============================================================ */
+        PROF_FUNC_TEST(sends_message_to_fulljid_when_received_from_fulljid),
+        PROF_FUNC_TEST(sends_subsequent_messages_to_fulljid),
+        PROF_FUNC_TEST(resets_to_barejid_after_presence_received),
+        PROF_FUNC_TEST(new_session_when_message_received_from_different_fulljid),
+    };
 
-        /* Room join with various options */
+    /* ============================================================
+     * GROUP 3: Presence, Disconnect
+     * Online/away/xa/dnd/chat status management
+     * ============================================================ */
+    const struct CMUnitTest group3_tests[] = {
+        PROF_FUNC_TEST(presence_online),
+        PROF_FUNC_TEST(presence_online_with_message),
+        PROF_FUNC_TEST(presence_away),
+        PROF_FUNC_TEST(presence_away_with_message),
+        PROF_FUNC_TEST(presence_xa),
+        PROF_FUNC_TEST(presence_xa_with_message),
+        PROF_FUNC_TEST(presence_dnd),
+        PROF_FUNC_TEST(presence_dnd_with_message),
+        PROF_FUNC_TEST(presence_chat),
+        PROF_FUNC_TEST(presence_chat_with_message),
+        PROF_FUNC_TEST(presence_set_priority),
+        PROF_FUNC_TEST(presence_includes_priority),
+        PROF_FUNC_TEST(presence_keeps_status),
+        PROF_FUNC_TEST(presence_received),
+        PROF_FUNC_TEST(presence_missing_resource_defaults),
+
+        /* Disconnect - clean session termination */
+        PROF_FUNC_TEST(disconnect_ends_session),
+    };
+
+    /* ============================================================
+     * GROUP 4: MUC, Carbons
+     * Multi-user chat and message synchronization
+     * ============================================================ */
+    const struct CMUnitTest group4_tests[] = {
+        /* MUC room join with various options - XEP-0045 */
         PROF_FUNC_TEST(sends_room_join),
         PROF_FUNC_TEST(sends_room_join_with_nick),
         PROF_FUNC_TEST(sends_room_join_with_password),
         PROF_FUNC_TEST(sends_room_join_with_nick_and_password),
 
-        /* Room information display */
+        /* MUC room information display */
         PROF_FUNC_TEST(shows_role_and_affiliation_on_join),
         PROF_FUNC_TEST(shows_subject_on_join),
-        // PROF_FUNC_TEST(shows_history_message), // temporarily disabled due to timing issues in CI
         PROF_FUNC_TEST(shows_occupant_join),
 
         /* MUC messaging */
@@ -134,16 +183,11 @@ main(int argc, char* argv[])
         PROF_FUNC_TEST(shows_me_message_from_occupant),
         PROF_FUNC_TEST(shows_me_message_from_self),
 
-        /* Console notification settings for MUC */
+        /* MUC console notification settings */
         PROF_FUNC_TEST(shows_all_messages_in_console_when_window_not_focussed),
         PROF_FUNC_TEST(shows_first_message_in_console_when_window_not_focussed),
         PROF_FUNC_TEST(shows_no_message_in_console_when_window_not_focussed),
 
-        /* ============================================================
-         * GROUP 4: Carbons, Chat Session, Software, Disconnect
-         * Message synchronization and session management
-         * ============================================================ */
-
         /* Message Carbons - XEP-0280 (message sync across devices) */
         PROF_FUNC_TEST(send_enable_carbons),
         PROF_FUNC_TEST(connect_with_carbons_enabled),
@@ -151,26 +195,34 @@ main(int argc, char* argv[])
         PROF_FUNC_TEST(receive_carbon),
         PROF_FUNC_TEST(receive_self_carbon),
         PROF_FUNC_TEST(receive_private_carbon),
-
-        /* Chat session management - bare/full JID routing */
-        PROF_FUNC_TEST(sends_message_to_barejid_when_contact_offline),
-        PROF_FUNC_TEST(sends_message_to_barejid_when_contact_online),
-        PROF_FUNC_TEST(sends_message_to_fulljid_when_received_from_fulljid),
-        PROF_FUNC_TEST(sends_subsequent_messages_to_fulljid),
-        PROF_FUNC_TEST(resets_to_barejid_after_presence_received),
-        PROF_FUNC_TEST(new_session_when_message_received_from_different_fulljid),
-
-        /* Software Version - XEP-0092 */
-        PROF_FUNC_TEST(send_software_version_request),
-        PROF_FUNC_TEST(display_software_version_result),
-        PROF_FUNC_TEST(shows_message_when_software_version_error),
-        PROF_FUNC_TEST(display_software_version_result_when_from_domainpart),
-        PROF_FUNC_TEST(show_message_in_chat_window_when_no_resource),
-        PROF_FUNC_TEST(display_software_version_result_in_chat),
-
-        /* Disconnect - clean session termination */
-        PROF_FUNC_TEST(disconnect_ends_session),
     };
 
-    return cmocka_run_group_tests(all_tests, NULL, NULL);
+    /* Test group registry for easy extension */
+    struct {
+        const char* name;
+        const struct CMUnitTest* tests;
+        size_t count;
+    } groups[] = {
+        { "Group 1: Connect/Ping/Rooms/Software", group1_tests, ARRAY_SIZE(group1_tests) },
+        { "Group 2: Message/Receipts/Roster/Session", group2_tests, ARRAY_SIZE(group2_tests) },
+        { "Group 3: Presence/Disconnect", group3_tests, ARRAY_SIZE(group3_tests) },
+        { "Group 4: MUC/Carbons", group4_tests, ARRAY_SIZE(group4_tests) },
+    };
+    const int num_groups = ARRAY_SIZE(groups);
+
+    int result = 0;
+
+    if (group > 0 && group <= num_groups) {
+        /* Run specific group */
+        result = _cmocka_run_group_tests(groups[group - 1].name, groups[group - 1].tests,
+                                         groups[group - 1].count, NULL, NULL);
+    } else {
+        /* Run all groups sequentially */
+        for (int i = 0; i < num_groups; i++) {
+            result |= _cmocka_run_group_tests(groups[i].name, groups[i].tests,
+                                              groups[i].count, NULL, NULL);
+        }
+    }
+
+    return result;
 }

tests/functionaltests/proftest.c

@@ -17,6 +17,9 @@
 
 #include "proftest.h"
 
+/* Number of parallel test groups for CI builds */
+#define TEST_GROUPS 4
+
 char *config_orig;
 char *data_orig;
 
@@ -24,6 +27,13 @@ int fd = 0;
 int stub_port = 5230;
 pid_t child_pid = 0;
 
+/*
+ * Dynamic XDG paths based on stub_port for parallel test execution.
+ * Each test instance gets unique directories to avoid file conflicts.
+ */
+char xdg_config_home[256];
+char xdg_data_home[256];
+
 /*
  * Buffer for accumulating output from profanity.
  * 64KB is sufficient for typical test output while keeping memory usage
@@ -77,7 +87,7 @@ _mkdir_recursive(const char *dir)
 void
 _create_config_dir(void)
 {
-    GString *profanity_dir = g_string_new(XDG_CONFIG_HOME);
+    GString *profanity_dir = g_string_new(xdg_config_home);
     g_string_append(profanity_dir, "/profanity");
 
     if (!_mkdir_recursive(profanity_dir->str)) {
@@ -90,7 +100,7 @@ _create_config_dir(void)
 void
 _create_data_dir(void)
 {
-    GString *profanity_dir = g_string_new(XDG_DATA_HOME);
+    GString *profanity_dir = g_string_new(xdg_data_home);
     g_string_append(profanity_dir, "/profanity");
 
     if (!_mkdir_recursive(profanity_dir->str)) {
@@ -103,7 +113,7 @@ _create_data_dir(void)
 void
 _create_chatlogs_dir(void)
 {
-    GString *chatlogs_dir = g_string_new(XDG_DATA_HOME);
+    GString *chatlogs_dir = g_string_new(xdg_data_home);
     g_string_append(chatlogs_dir, "/profanity/chatlogs");
 
     if (!_mkdir_recursive(chatlogs_dir->str)) {
@@ -116,7 +126,7 @@ _create_chatlogs_dir(void)
 void
 _create_logs_dir(void)
 {
-    GString *logs_dir = g_string_new(XDG_DATA_HOME);
+    GString *logs_dir = g_string_new(xdg_data_home);
     g_string_append(logs_dir, "/profanity/logs");
 
     if (!_mkdir_recursive(logs_dir->str)) {
@@ -129,7 +139,15 @@ _create_logs_dir(void)
 void
 _cleanup_dirs(void)
 {
-    int res = system("rm -rf ./tests/functionaltests/files");
+    const char *group_env = getenv("PROF_TEST_GROUP");
+    int group = group_env ? atoi(group_env) : 0;
+    int dir_id = (group >= 1 && group <= TEST_GROUPS) ? group : stub_port;
+    
+    printf("[PROF_TEST] Cleaning up directories for group %d (dir_id %d)\n", group, dir_id);
+    
+    char cmd[512];
+    snprintf(cmd, sizeof(cmd), "rm -rf ./test-files/%d", dir_id);
+    int res = system(cmd);
     if (res == -1) {
         assert_true(FALSE);
     }
@@ -212,33 +230,83 @@ prof_start(void)
     /* Set non-blocking mode for reading */
     int flags = fcntl(fd, F_GETFL, 0);
     fcntl(fd, F_SETFL, flags | O_NONBLOCK);
+    
+    /* Brief wait for process to initialize */
+    usleep(50000);  /* 50ms */
 }
 
 int
 init_prof_test(void **state)
 {
+    /* Get test group from environment for static resource allocation */
+    const char *group_env = getenv("PROF_TEST_GROUP");
+    int group = group_env ? atoi(group_env) : 0;
+    
+    /* Get build index for port offset (for parallel CI builds) */
+    const char *build_env = getenv("PROF_BUILD_INDEX");
+    int build_idx = build_env ? atoi(build_env) : 0;
+    
+    /* Calculate port base: each build uses a different range of TEST_GROUPS ports.
+     * Build 0 (local/default): 5230-5233, Full: 5230-5233, Minimal: 5234-5237, etc.
+     * Build 0 and Full share the same range because build 0 is for local runs or sequential run (no parallel builds),
+     * while Full/Minimal/NoEncrypt/Default are used in CI where they run in parallel. */
+    int port_base = 5230 + ((build_idx > 0 ? build_idx - 1 : 0) * TEST_GROUPS);
+    
+    /* Static resource allocation to avoid conflicts in parallel execution.
+     * Group 1-4: use static port assignment.
+     * Group 0 (all groups): use dynamic allocation as fallback. */
     gboolean started = FALSE;
-    for (int p = 5230; p < 5250; ++p) {
+    
-        int ret = stbbr_start(STBBR_LOGDEBUG, p, 0);
+    if (group >= 1 && group <= TEST_GROUPS) {
-        if (ret == 0) {
+        /* Static allocation: each group gets a dedicated port */
-            stub_port = p;
+        stub_port = port_base + group - 1;
+        printf("[PROF_TEST] Build %d, Group %d: trying port %d\n", build_idx, group, stub_port);
+        
+        if (stbbr_start(STBBR_LOGDEBUG, stub_port, 0) == 0) {
             started = TRUE;
-            break;
+            printf("[PROF_TEST] Started stabber on port %d\n", stub_port);
+        } else {
+            printf("[PROF_TEST] Failed to start stabber on port %d\n", stub_port);
         }
     }
+    
+    /* Fallback to dynamic allocation if static failed or group=0 */
     if (!started) {
-        assert_true(FALSE); // could not start stabber on any port in range
+        printf("[PROF_TEST] Using dynamic port allocation\n");
+        for (int p = port_base; p < port_base + 20; ++p) {
+            if (stbbr_start(STBBR_LOGDEBUG, p, 0) == 0) {
+                stub_port = p;
+                started = TRUE;
+                printf("[PROF_TEST] Started stabber on port %d\n", stub_port);
+                break;
+            }
+        }
+    }
+    
+    if (!started) {
+        fprintf(stderr, "[PROF_TEST] ERROR: could not start stabber on any port\n");
         return -1;
     }
 
+    /* Generate unique XDG paths based on group for parallel execution.
+     * Use ./test-files/ in current (build) directory for out-of-tree builds compatibility. */
+    int dir_id = (group >= 1 && group <= TEST_GROUPS) ? group : stub_port;
+    snprintf(xdg_config_home, sizeof(xdg_config_home),
+             "./test-files/%d/xdg_config_home", dir_id);
+    snprintf(xdg_data_home, sizeof(xdg_data_home),
+             "./test-files/%d/xdg_data_home", dir_id);
+    
+    printf("[PROF_TEST] Group %d using directories: config=%s, data=%s\n", 
+           group, xdg_config_home, xdg_data_home);
+
     // Give stabber server thread time to start listening
     usleep(100000); // 100ms
 
     config_orig = getenv("XDG_CONFIG_HOME");
     data_orig = getenv("XDG_DATA_HOME");
 
-    setenv("XDG_CONFIG_HOME", XDG_CONFIG_HOME, 1);
+    setenv("XDG_CONFIG_HOME", xdg_config_home, 1);
-    setenv("XDG_DATA_HOME", XDG_DATA_HOME, 1);
+    setenv("XDG_DATA_HOME", xdg_data_home, 1);
 
     _cleanup_dirs();
 
@@ -386,6 +454,16 @@ prof_output_regex(const char *pattern)
         usleep(50000);  /* 50ms */
     }
     
+    /* Timeout reached - log diagnostic info */
+    fprintf(stderr, "Timeout waiting for regex '%s' after %d seconds. Last output:\n", pattern, expect_timeout);
+    size_t len = strlen(output_buffer);
+    if (len > 500) {
+        fprintf(stderr, "...%s", output_buffer + len - 500);
+    } else {
+        fprintf(stderr, "%s", output_buffer);
+    }
+    fprintf(stderr, "\n");
+    
     regfree(&regex);
     return 0;
 }

tests/functionaltests/proftest.h

@@ -1,8 +1,13 @@
 #ifndef __H_PROFTEST
 #define __H_PROFTEST
 
-#define XDG_CONFIG_HOME "./tests/functionaltests/files/xdg_config_home"
+/*
-#define XDG_DATA_HOME   "./tests/functionaltests/files/xdg_data_home"
+ * XDG paths are dynamic and generated per-test based on stub_port.
+ * Each test instance uses unique directories (./tests/functionaltests/files/{port}/xdg_*)
+ * to allow parallel test execution without file conflicts.
+ */
+extern char xdg_config_home[256];
+extern char xdg_data_home[256];
 
 extern int stub_port;