Feat: run benchmarks on internal tests

Implementierung/lib/helper.h

@@ -20,8 +20,9 @@ enum argumentParseResult {
 struct configuration {
   char* filename;
   int implementationToUse;
-  int doBenchmark;
+  bool doBenchmark;
   int benchmarkingCycles;
+  bool runTests;
 };
 
 /**

Implementierung/src/helper.c

@@ -18,9 +18,12 @@ int stringToInt(char *string) {
 }
 
 void help(char *progname) {
-  fprintf(
-      stderr,
-      "usage: %s [-V implementation] [-B [repetitons]] [-h] [--help] file\n",
+  fprintf(stdout,
+          "Usage: %s [options...] <file>\n\
+  -V, --version <version>      use a specific implementation\n\
+  -B, --benchmark [repetitons] benchmark the execution and optionally repeat it\n\
+  -T, --test                   run self-test. If set, no file is needed\n\
+  -h, --help                   print this help page\n",
           progname);
 }
 
@@ -31,30 +34,34 @@ enum argumentParseResult parseArguments(int argc, char **argv,
   }
 
   c->implementationToUse = 0;
-  c->doBenchmark = 0;
+  c->doBenchmark = false;
   c->benchmarkingCycles = 1;
+  c->runTests = false;
 
   int opt;
 
   while (1) {
-    static struct option longOptions[] = {{"help", no_argument, NULL, 'h'},
+    static struct option longOptions[] = {
+        {"version", required_argument, NULL, 'V'},
+        {"benchmark", optional_argument, NULL, 'B'},
+        {"test", optional_argument, NULL, 'T'},
+        {"help", no_argument, NULL, 'h'},
         {NULL}};
     int longOptionIndex = 0;
 
-    opt = getopt_long(argc, argv, "V:B::h", longOptions, &longOptionIndex);
+    opt = getopt_long(argc, argv, "V:B::Th", longOptions, &longOptionIndex);
 
     if (-1 == opt) break;
 
     switch (opt) {
       case 'B':
-        c->doBenchmark = 1;
+        c->doBenchmark = true;
         if (optarg != NULL) {
           c->benchmarkingCycles = stringToInt(optarg);
           if (errno == 0) break;
           fprintf(stderr,
                   "%s: invalid argument, has to be int -- 'B' got '%s'\n",
                   argv[0], optarg);
-          help(argv[0]);
           return RESULT_EXIT_FAILURE;
         }
         break;
@@ -63,24 +70,25 @@ enum argumentParseResult parseArguments(int argc, char **argv,
         if (errno == 0) break;
         fprintf(stderr, "%s: invalid argument, has to be int -- 'V' got '%s'\n",
                 argv[0], optarg);
-        help(argv[0]);
         return RESULT_EXIT_FAILURE;
 
+      case 'T':
+        c->runTests = true;
+        break;
+
       case 'h':
         help(argv[0]);
         return RESULT_EXIT_SUCCESS;
 
       default:
-        help(argv[0]);
         return RESULT_EXIT_FAILURE;
     }
   }
 
   if (argc > optind) {
     c->filename = argv[optind];
-  } else {
+  } else if (!c->runTests) {
     fprintf(stderr, "%s: missing poisional argument -- 'file'\n", argv[0]);
-    help(argv[0]);
     return RESULT_EXIT_FAILURE;
   }
 

Implementierung/src/main.c

@@ -5,37 +5,51 @@
 #include "../lib/md2.h"
 
 // Returns true when val is approx. equal to exp.
-static bool runTest(const char* message, const char* expectedHash) {
+static bool runTest(struct configuration* c, const char* message,
+                    const char* expectedHash) {
   uint8_t out[16];
-  double duration =
-      run_benchmark(1, md2_hash, strlen(message), (uint8_t*)message, out);
+  double duration = 0.0;
+
+  if (c->doBenchmark) {
+    duration = run_benchmark(c->benchmarkingCycles, md2_hash, strlen(message),
+                             (uint8_t*)message, out);
+  } else {
+    md2_hash(strlen(message), (uint8_t*)message, out);
+  }
 
   char hash[32];
   md2_encode_hash(out, hash);
 
   bool ok = !strncmp(hash, expectedHash, 32);
-  printf("%s: md2(%s) %s == %s, took: %f\n", "not ok" + (4 * ok), message, hash,
-         expectedHash, duration);
+  printf("%s: md2(%s) %s == %s", "not ok" + (4 * ok), message, hash,
+         expectedHash);
+
+  if (c->doBenchmark) {
+    printf("took: %f", duration);
+  }
+  printf("\n");
   return ok;
 }
 
-unsigned runTests(void) {
+unsigned runTests(struct configuration* c) {
   unsigned failed = 0;
   // src: https://datatracker.ietf.org/doc/html/rfc1319#appendix-A.5
-  failed += !runTest("", "8350e5a3e24c153df2275c9f80692773");
-  failed += !runTest("a", "32ec01ec4a6dac72c0ab96fb34c0b5d1");
-  failed += !runTest("abc", "da853b0d3f88d99b30283a69e6ded6bb");
-  failed += !runTest("message digest", "ab4f496bfb2a530b219ff33031fe06b0");
-  failed += !runTest("jebdjcslfhwfdig", "e1b69085c6f6e36cb8fe8d98ed3f2c35");
-  failed += !runTest("0123456789abcde", "d95629645108a20ab4d70e8545e0723b");
-  failed += !runTest("0123456789abcdef", "12c8dfa285f14e1af8c5254e7092d0d3");
-  failed += !runTest("0123456789abcdefg", "e4d0efded5ef7b6843a5ba47e1171347");
-  failed += !runTest("abcdefghijklmnopqrstuvwxyz",
-                     "4e8ddff3650292ab5a4108c3aa47940b");
+  failed += !runTest(c, "", "8350e5a3e24c153df2275c9f80692773");
+  failed += !runTest(c, "a", "32ec01ec4a6dac72c0ab96fb34c0b5d1");
+  failed += !runTest(c, "abc", "da853b0d3f88d99b30283a69e6ded6bb");
+  failed += !runTest(c, "message digest", "ab4f496bfb2a530b219ff33031fe06b0");
+  failed += !runTest(c, "jebdjcslfhwfdig", "e1b69085c6f6e36cb8fe8d98ed3f2c35");
+  failed += !runTest(c, "0123456789abcde", "d95629645108a20ab4d70e8545e0723b");
+  failed += !runTest(c, "0123456789abcdef", "12c8dfa285f14e1af8c5254e7092d0d3");
   failed +=
-      !runTest("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
+      !runTest(c, "0123456789abcdefg", "e4d0efded5ef7b6843a5ba47e1171347");
+  failed += !runTest(c, "abcdefghijklmnopqrstuvwxyz",
+                     "4e8ddff3650292ab5a4108c3aa47940b");
+  failed += !runTest(
+      c, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
       "da33def2a42df13975352846c30338cd");
   failed += !runTest(
+      c,
       "123456789012345678901234567890123456789012345678901234567890123456789012"
       "34567890",
       "d5976f79d83d3a0dc9806c3c66f3efd8");
@@ -69,12 +83,16 @@ int main(int argc, char** argv) {
   }
 
   printf(
-      "Hashing file: %s\nUsing implementation: %d, doing benchmark: %d, "
+      "Using implementation: %d, doing benchmark: %d, "
       "benchmark cycles: %d\n",
-      c.filename, c.implementationToUse, c.doBenchmark, c.benchmarkingCycles);
+      c.implementationToUse, c.doBenchmark, c.benchmarkingCycles);
 
-  // runTests();
-  // return 0;
+  if (c.runTests) {
+    printf("Running tests...\n\n");
+    return runTests(&c);
+  }
+
+  printf("Hashing file %s...\n\n", c.filename);
   size_t len;
   uint8_t* data = read_file(c.filename, &len);
   if (data == NULL) {
@@ -82,9 +100,6 @@ int main(int argc, char** argv) {
     return EXIT_FAILURE;
   }
 
-  printf("File read with size: %zu\n", len);
-  printf("\n");
-
   uint8_t out[16];
   char hash[32];
   if (c.doBenchmark) {