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
2.4 KiB
C
58 lines
2.4 KiB
C
#ifdef BUILD_TEST
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#include <stdio.h>
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#include <signal.h>
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#include <stdbool.h>
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#include "system.h"
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static sig_atomic_t simulation_should_stop = false;
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static void signal_handler(int signum)
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{
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(void)signum;
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simulation_should_stop = true;
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}
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int main(int argc, char **argv)
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{
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(void)argc;
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(void)argv;
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// Set up signal handlers for clean shutdown
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signal(SIGINT, signal_handler);
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signal(SIGTERM, signal_handler);
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startup_simulation(2);
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// Spawn metadata server (leader)
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spawn_simulated_process("--addr 127.0.0.1 --port 8080 --leader");
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// Spawn chunk servers
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spawn_simulated_process("--addr 127.0.0.1 --port 8081 --remote-addr 127.0.0.1 --remote-port 8080 --path chunk_server_data_0/");
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spawn_simulated_process("--addr 127.0.0.1 --port 8082 --remote-addr 127.0.0.1 --remote-port 8080 --path chunk_server_data_1/");
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spawn_simulated_process("--addr 127.0.0.1 --port 8083 --remote-addr 127.0.0.1 --remote-port 8080 --path chunk_server_data_2/");
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spawn_simulated_process("--addr 127.0.0.1 --port 8084 --remote-addr 127.0.0.1 --remote-port 8080 --path chunk_server_data_3/");
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spawn_simulated_process("--addr 127.0.0.1 --port 8085 --remote-addr 127.0.0.1 --remote-port 8080 --path chunk_server_data_4/");
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spawn_simulated_process("--addr 127.0.0.1 --port 8086 --remote-addr 127.0.0.1 --remote-port 8080 --path chunk_server_data_5/");
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spawn_simulated_process("--addr 127.0.0.1 --port 8087 --remote-addr 127.0.0.1 --remote-port 8080 --path chunk_server_data_6/");
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spawn_simulated_process("--addr 127.0.0.1 --port 8088 --remote-addr 127.0.0.1 --remote-port 8080 --path chunk_server_data_7/");
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spawn_simulated_process("--addr 127.0.0.1 --port 8089 --remote-addr 127.0.0.1 --remote-port 8080 --path chunk_server_data_8/");
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spawn_simulated_process("--addr 127.0.0.1 --port 8090 --remote-addr 127.0.0.1 --remote-port 8080 --path chunk_server_data_9/");
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// Spawn simulation client
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spawn_simulated_process("--client --remote-addr 127.0.0.1 --remote-port 8080");
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spawn_simulated_process("--client --remote-addr 127.0.0.1 --remote-port 8080");
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spawn_simulated_process("--client --remote-addr 127.0.0.1 --remote-port 8080");
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spawn_simulated_process("--client --remote-addr 127.0.0.1 --remote-port 8080");
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spawn_simulated_process("--client --remote-addr 127.0.0.1 --remote-port 8080");
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while (!simulation_should_stop)
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update_simulation();
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cleanup_simulation();
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return 0;
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}
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#endif
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