Claude
4b97b176bd
This commit adds tooling to measure how many branches the random simulation reaches during execution, which helps understand code coverage and identify untested code paths. Changes: - Add coverage build target to Makefile with --coverage flags - Create measure_coverage.sh script to build, run, and report branch coverage - Add signal handlers (SIGINT/SIGTERM) to main_test.c for clean shutdown - Update clean target to remove coverage files (*.gcda, *.gcno) The script runs the simulation for a specified duration (default 5 seconds), then uses gcov to analyze which branches were executed. In a 3-second run, the simulation reaches approximately 32% of all branches (781/2431). Usage: ./measure_coverage.sh [duration_in_seconds] Example output shows per-file and total branch coverage statistics.
58 lines
1.5 KiB
Makefile
58 lines
1.5 KiB
Makefile
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CFLAGS = -Wall -Wextra -ggdb
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COVERAGE_CFLAGS = $(CFLAGS) --coverage
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COVERAGE_LFLAGS = --coverage
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ifeq ($(OS),Windows_NT)
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LFLAGS = -lws2_32
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EXT = .exe
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else
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LFLAGS =
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EXT = .out
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endif
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CFILES = $(shell find src -name '*.c')
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HFILES = $(shell find src -name '*.h')
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OFILES = $(CFILES:.c=.o)
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.PHONY: all clean coverage
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all: mousefs$(EXT) mousefs_random_test$(EXT) example_client$(EXT) libmousefs.a
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coverage: mousefs_random_test_coverage$(EXT)
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mousefs$(EXT): $(CFILES) $(HFILES)
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gcc -o $@ $(CFILES) $(CFLAGS) $(LFLAGS) -Iinc -DBUILD_SERVER
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mousefs_random_test$(EXT): $(CFILES) $(HFILES)
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gcc -o $@ $(CFILES) $(CFLAGS) $(LFLAGS) -Iinc -DBUILD_TEST
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mousefs_random_test_coverage$(EXT): $(CFILES) $(HFILES)
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gcc -o $@ $(CFILES) $(COVERAGE_CFLAGS) $(LFLAGS) $(COVERAGE_LFLAGS) -Iinc -DBUILD_TEST
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example_client$(EXT): libmousefs.a
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gcc -o $@ examples/main.c $(CFLAGS) -lmousefs $(LFLAGS) -Iinc -L.
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%.o: %.c $(HFILES)
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gcc -c -o $@ $< $(CFLAGS) -Iinc
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libmousefs.a: $(OFILES)
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ar rcs $@ $^
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clean:
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rm -f \
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mousefs.exe \
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mousefs.out \
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mousefs_random_test.exe \
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mousefs_random_test.out \
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mousefs_random_test_coverage.exe \
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mousefs_random_test_coverage.out \
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example_client.exe \
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example_client.out \
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libmousefs.a \
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src/*.o \
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src/*.gcda \
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src/*.gcno \
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*.gcda \
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*.gcno
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