1 files changed, 38 insertions, 0 deletions
diff --git a/scripts/test_coverage.sh b/scripts/test_coverage.sh
new file mode 100755
index 0000000..adca730
--- /dev/null
+++ b/scripts/test_coverage.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+#
+# This file is mostly AI generated.
+set -euo pipefail
+set -x
+
+# Absolute paths
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+ROOT_DIR="$SCRIPT_DIR/.."
+COVERAGE_DIR="$ROOT_DIR/coverage"
+
+# Clean and prepare coverage dir
+rm -rf "$COVERAGE_DIR"
+mkdir -p "$COVERAGE_DIR"
+
+# Copy all relevant files to coverage directory
+cp "$ROOT_DIR/ls_args.h" "$COVERAGE_DIR/"
+mkdir -p "$COVERAGE_DIR/tests"
+cp "$ROOT_DIR/tests/tests.c" "$COVERAGE_DIR/tests/"
+cp "$ROOT_DIR/tests/ls_test.h" "$COVERAGE_DIR/tests/"
+cp "$SCRIPT_DIR/Makefile-cov" "$COVERAGE_DIR/Makefile"
+
+cd "$COVERAGE_DIR"
+
+export CFLAGS="-fprofile-arcs -ftest-coverage -DNDEBUG"
+# Build test binary with coverage instrumentation
+# Also disable asserts because they do not count for us
+make -B
+
+# Run test binary (generates .gcda files here)
+./tests_cov_tmp
+
+# Generate coverage reports (all output local to coverage/)
+gcovr --root . --object-directory . --exclude-directories tests --output coverage.txt
+gcovr --root . --object-directory . --exclude-directories tests --html --html-details -o coverage.html
+
+echo "Coverage summary: $COVERAGE_DIR/coverage.txt"
+echo "HTML report: $COVERAGE_DIR/coverage.html"