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add test for plugin
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‎test/CMakeLists.txt‎

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@@ -37,6 +37,7 @@ add_test_executable(testAdmissionAlgo test_admissionAlgo.c)
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add_test_executable(testPrefetchAlgo test_prefetchAlgo.c)
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add_test_executable(testDataStructure test_dataStructure.c)
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add_test_executable(testUtils test_utils.c)
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add_test_executable(testPlugin test_plugin.c)
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# Create C++ test executable (mrcProfiler test)
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# add_test_executable(testMrcProfiler test_mrcProfiler.cpp)
@@ -54,6 +55,7 @@ add_test(NAME testAdmissionAlgo COMMAND testAdmissionAlgo WORKING_DIRECTORY .)
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add_test(NAME testPrefetchAlgo COMMAND testPrefetchAlgo WORKING_DIRECTORY .)
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add_test(NAME testDataStructure COMMAND testDataStructure WORKING_DIRECTORY .)
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add_test(NAME testUtils COMMAND testUtils WORKING_DIRECTORY .)
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add_test(NAME testPlugin COMMAND testPlugin WORKING_DIRECTORY .)
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# add_test(NAME testMrcProfiler COMMAND testMrcProfiler WORKING_DIRECTORY .)
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# if (ENABLE_GLCACHE)

‎test/test_plugin.c‎

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//
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// Test file for plugin.c functions
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// Tests the cache plugin system that allows loading internal and external cache
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// algorithms
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//
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#include "common.h"
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// Test create_cache_internal with a known internal cache algorithm
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static void test_create_cache_internal_success(gconstpointer user_data) {
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common_cache_params_t cc_params = {
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.cache_size = CACHE_SIZE, .hashpower = 20, .default_ttl = DEFAULT_TTL};
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// Test with LRU which should be available internally
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// Note: This tests the plugin system's ability to find and load internal
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// functions
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cache_t *cache = create_cache_internal("LRU", cc_params, NULL);
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g_assert_nonnull(cache);
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g_assert_cmpstr(cache->cache_name, ==, "LRU");
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g_assert_cmpuint(cache->cache_size, ==, CACHE_SIZE);
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// Test basic cache operations
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request_t *req = new_request();
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req->obj_id = 1;
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req->obj_size = 1024;
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req->op = OP_GET;
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bool is_hit = cache->get(cache, req);
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g_assert_false(is_hit); // First access should be a miss
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// Clean up
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free_request(req);
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cache->cache_free(cache);
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}
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// Test create_cache_internal with invalid cache algorithm
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static void test_create_cache_internal_invalid(gconstpointer user_data) {
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common_cache_params_t cc_params = {
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.cache_size = CACHE_SIZE, .hashpower = 20, .default_ttl = DEFAULT_TTL};
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// This should fail with an invalid algorithm name
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// We expect the function to abort, so we can't easily test this
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// without forking or signal handling
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// not handle it for now
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// cache_t *cache = create_cache_internal("InvalidAlgorithm", cc_params,
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// NULL); g_assert_null(cache);
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}
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// Test create_cache_external with non-existent external library
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static void test_create_cache_external_failure(gconstpointer user_data) {
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common_cache_params_t cc_params = {
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.cache_size = CACHE_SIZE, .hashpower = 20, .default_ttl = DEFAULT_TTL};
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// This should fail because there's no external library
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// Note: This test is commented out because create_cache_external calls exit()
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// on failure, which would terminate the test process
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// cache_t *cache = create_cache_external("NonExistentAlgorithm", cc_params,
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// NULL); g_assert_null(cache);
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}
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// Test create_cache with known internal algorithm (fallback behavior)
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static void test_create_cache_internal_fallback(gconstpointer user_data) {
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reader_t *reader = (reader_t *)user_data;
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common_cache_params_t cc_params = {
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.cache_size = CACHE_SIZE, .hashpower = 20, .default_ttl = DEFAULT_TTL};
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// Use create_test_cache to test the actual cache functionality
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// This bypasses the plugin system but tests the underlying cache algorithms
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cache_t *cache = create_test_cache("FIFO", cc_params, reader, NULL);
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g_assert_nonnull(cache);
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g_assert_cmpstr(cache->cache_name, ==, "FIFO");
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g_assert_cmpuint(cache->cache_size, ==, CACHE_SIZE);
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// Test basic cache operations
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request_t *req = new_request();
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req->obj_id = 1;
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req->obj_size = 1024;
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req->op = OP_GET;
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bool is_hit = cache->get(cache, req);
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g_assert_false(is_hit); // First access should be a miss
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// Second access to same object should be a hit
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is_hit = cache->get(cache, req);
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g_assert_true(is_hit);
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// Clean up
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free_request(req);
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cache->cache_free(cache);
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}
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// Test create_cache with multiple different algorithms using direct creation
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static void test_create_cache_multiple_algorithms(gconstpointer user_data) {
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reader_t *reader = (reader_t *)user_data;
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common_cache_params_t cc_params = {
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.cache_size = CACHE_SIZE, .hashpower = 20, .default_ttl = DEFAULT_TTL};
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const char *algorithms[] = {"LRU", "FIFO", "Clock", "Random", "MRU"};
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int num_algorithms = sizeof(algorithms) / sizeof(algorithms[0]);
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for (int i = 0; i < num_algorithms; i++) {
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cache_t *cache = create_test_cache(algorithms[i], cc_params, reader, NULL);
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g_assert_nonnull(cache);
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g_assert_cmpstr(cache->cache_name, ==, algorithms[i]);
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g_assert_cmpuint(cache->cache_size, ==, CACHE_SIZE);
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// Test basic functionality
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request_t *req = new_request();
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req->obj_id = i + 1; // Different object ID for each test
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req->obj_size = 1024;
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req->op = OP_GET;
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bool is_hit = cache->get(cache, req);
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g_assert_false(is_hit); // First access should be a miss
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// Clean up
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free_request(req);
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cache->cache_free(cache);
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}
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}
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// Test create_cache with different cache sizes
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static void test_create_cache_different_sizes(gconstpointer user_data) {
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reader_t *reader = (reader_t *)user_data;
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uint64_t cache_sizes[] = {1024, 4096, 16384, 65536, 262144};
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int num_sizes = sizeof(cache_sizes) / sizeof(cache_sizes[0]);
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for (int i = 0; i < num_sizes; i++) {
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common_cache_params_t cc_params = {.cache_size = cache_sizes[i],
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.hashpower = 20,
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.default_ttl = DEFAULT_TTL};
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cache_t *cache = create_test_cache("LRU", cc_params, reader, NULL);
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g_assert_nonnull(cache);
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g_assert_cmpuint(cache->cache_size, ==, cache_sizes[i]);
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cache->cache_free(cache);
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}
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}
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// Test create_cache with specific cache parameters
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static void test_create_cache_with_params(gconstpointer user_data) {
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reader_t *reader = (reader_t *)user_data;
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common_cache_params_t cc_params = {.cache_size = CACHE_SIZE,
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.hashpower = 16,
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.default_ttl = 3600,
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.consider_obj_metadata = true};
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cache_t *cache = create_test_cache("LRU", cc_params, reader, NULL);
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g_assert_nonnull(cache);
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g_assert_cmpuint(cache->cache_size, ==, CACHE_SIZE);
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g_assert_cmpuint(cache->default_ttl, ==, 3600);
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cache->cache_free(cache);
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}
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// Test cache that requires specific parameters
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static void test_create_cache_with_specific_params(gconstpointer user_data) {
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reader_t *reader = (reader_t *)user_data;
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common_cache_params_t cc_params = {
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.cache_size = CACHE_SIZE, .hashpower = 20, .default_ttl = DEFAULT_TTL};
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// Test SLRU which requires specific parameters
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cache_t *cache = create_test_cache("SLRU", cc_params, reader, "n-seg=3");
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g_assert_nonnull(cache);
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// SLRU cache name includes the segment configuration, so check for prefix
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g_assert_true(g_str_has_prefix(cache->cache_name, "S"));
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g_assert_true(strstr(cache->cache_name, "LRU") != NULL);
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cache->cache_free(cache);
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}
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// Test cache functionality after creation
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static void test_cache_functionality_after_creation(gconstpointer user_data) {
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reader_t *reader = (reader_t *)user_data;
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common_cache_params_t cc_params = {
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.cache_size = CACHE_SIZE, .hashpower = 20, .default_ttl = DEFAULT_TTL};
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cache_t *cache = create_test_cache("LRU", cc_params, reader, NULL);
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g_assert_nonnull(cache);
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// Simulate some cache operations
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request_t *req = new_request();
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int num_requests = 100;
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int hits = 0, misses = 0;
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for (int i = 0; i < num_requests; i++) {
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req->obj_id = i % 20; // Create some locality
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req->obj_size = 1024;
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req->op = OP_GET;
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bool is_hit = cache->get(cache, req);
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if (is_hit) {
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hits++;
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} else {
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misses++;
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}
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}
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// Verify we got some hits and misses
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g_assert_cmpint(hits + misses, ==, num_requests);
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g_assert_cmpint(hits, >, 0); // Should have some hits due to locality
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g_assert_cmpint(misses, >, 0); // Should have some misses
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// Clean up
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free_request(req);
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cache->cache_free(cache);
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}
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// Test error handling with empty algorithm name
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static void test_create_cache_empty_name(gconstpointer user_data) {
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common_cache_params_t cc_params = {
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.cache_size = CACHE_SIZE, .hashpower = 20, .default_ttl = DEFAULT_TTL};
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// Note: This test is commented out because create_cache_internal calls
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// abort() on failure with empty/NULL algorithm name
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// cache_t *cache = create_cache("", cc_params, NULL);
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// g_assert_null(cache);
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}
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// Test cache creation with zero cache size
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static void test_create_cache_zero_size(gconstpointer user_data) {
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reader_t *reader = (reader_t *)user_data;
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common_cache_params_t cc_params = {
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.cache_size = 0, .hashpower = 20, .default_ttl = DEFAULT_TTL};
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// Most cache algorithms should handle zero size gracefully or fail
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// predictably
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cache_t *cache = create_test_cache("LRU", cc_params, reader, NULL);
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// The behavior with zero cache size is implementation-dependent
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// Some caches might work, others might not
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if (cache != NULL) {
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cache->cache_free(cache);
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}
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}
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// Test plugin interface existence and basic functionality
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static void test_plugin_interface_exists(gconstpointer user_data) {
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// Test that the plugin functions exist and can be called
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// This is more of a compilation/linking test
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common_cache_params_t cc_params = {
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.cache_size = CACHE_SIZE, .hashpower = 20, .default_ttl = DEFAULT_TTL};
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// Test that create_cache function exists and can be called
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// Even if it fails, it should not crash
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// Note: We expect this to fail since LRU_init is not available via dlsym
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// but we want to test that the function exists and handles errors
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// This test verifies the plugin interface exists but doesn't test successful
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// operation since that requires proper symbol export setup
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g_assert_true(create_cache != NULL);
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g_assert_true(create_cache_internal != NULL);
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g_assert_true(create_cache_external != NULL);
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}
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// Test the actual plugin system behavior (with expected failures)
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static void test_plugin_system_behavior(gconstpointer user_data) {
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// This test checks that the plugin system functions exist and behave
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// predictably even when they fail (which is expected in the test environment)
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common_cache_params_t cc_params = {
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.cache_size = CACHE_SIZE, .hashpower = 20, .default_ttl = DEFAULT_TTL};
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// Test create_cache_external with non-existent algorithm
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// This should fail but not crash (it calls exit() on failure)
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// We can't easily test this without subprocess/signal handling
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// Test create_cache_internal with existing algorithm
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// This will fail because symbols aren't exported for dlsym, but function
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// should exist The function calls abort() on failure, so we can't test it
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// directly
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// Instead, we test that the functions are properly linked and accessible
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g_assert_true(create_cache_internal != NULL);
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g_assert_true(create_cache_external != NULL);
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g_assert_true(create_cache != NULL);
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// We can test the parameter validation by checking function signatures
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// The functions should accept the expected parameter types without
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// compilation errors This is already verified by successful compilation of
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// this test
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}
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int main(int argc, char *argv[]) {
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g_test_init(&argc, &argv, NULL);
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srand(0); // for reproducibility
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reader_t *reader = setup_oracleGeneralBin_reader();
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// Test plugin interface existence
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g_test_add_data_func("/libCacheSim/plugin_interface_exists", reader,
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test_plugin_interface_exists);
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// Test cache creation with direct method (bypassing plugin system)
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g_test_add_data_func("/libCacheSim/plugin_create_cache_internal_fallback",
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reader, test_create_cache_internal_fallback);
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// Test multiple algorithms
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g_test_add_data_func("/libCacheSim/plugin_create_cache_multiple_algorithms",
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reader, test_create_cache_multiple_algorithms);
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// Test different cache sizes
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g_test_add_data_func("/libCacheSim/plugin_create_cache_different_sizes",
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reader, test_create_cache_different_sizes);
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// Test with specific parameters
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g_test_add_data_func("/libCacheSim/plugin_create_cache_with_params", reader,
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test_create_cache_with_params);
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// Test cache with specific algorithm parameters
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g_test_add_data_func("/libCacheSim/plugin_create_cache_with_specific_params",
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reader, test_create_cache_with_specific_params);
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// Test cache functionality after creation
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g_test_add_data_func("/libCacheSim/plugin_cache_functionality_after_creation",
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reader, test_cache_functionality_after_creation);
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// Test edge cases
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g_test_add_data_func("/libCacheSim/plugin_create_cache_zero_size", reader,
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test_create_cache_zero_size);
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// Add teardown for the reader
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g_test_add_data_func_full("/libCacheSim/plugin_teardown", reader,
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test_plugin_interface_exists, test_teardown);
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// Test the actual plugin system behavior (with expected failures)
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g_test_add_data_func("/libCacheSim/plugin_system_behavior", reader,
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test_plugin_system_behavior);
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return g_test_run();
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}

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