Start with tests for the C API

The C API tests can be run individually via

    build/api_test/api_test

Or together with the spec tests via

    cmake --build build --target test

1 files changed, 102 insertions, 0 deletions

diff --git a/api_test/harness.c b/api_test/harness.c
new file mode 100644
index 0000000..6b38d41
--- /dev/null
+++ b/api_test/harness.c
@@ -0,0 +1,102 @@
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "harness.h"
+
+test_batch_runner*
+test_batch_runner_new()
+{
+	return (test_batch_runner *)calloc(1, sizeof(test_batch_runner));
+}
+
+static void
+test_result(test_batch_runner *runner, int cond, const char *msg, va_list ap)
+{
+	++runner->test_num;
+
+	if (cond) {
+		++runner->num_passed;
+	}
+	else {
+		fprintf(stderr, "FAILED test %d: ", runner->test_num);
+		vfprintf(stderr, msg, ap);
+		fprintf(stderr, "\n");
+		++runner->num_failed;
+	}
+}
+
+void
+SKIP(test_batch_runner *runner, int num_tests)
+{
+	runner->test_num    += num_tests;
+	runner->num_skipped += num_tests;
+}
+
+void
+OK(test_batch_runner *runner, int cond, const char *msg, ...)
+{
+	va_list ap;
+	va_start(ap, msg);
+	test_result(runner, cond, msg, ap);
+	va_end(ap);
+}
+
+void
+INT_EQ(test_batch_runner *runner, int got, int expected, const char *msg, ...)
+{
+	int cond = got == expected;
+
+	va_list ap;
+	va_start(ap, msg);
+	test_result(runner, cond, msg, ap);
+	va_end(ap);
+
+	if (!cond) {
+		fprintf(stderr, "  Got:      %d\n", got);
+		fprintf(stderr, "  Expected: %d\n", expected);
+	}
+}
+
+void
+STR_EQ(test_batch_runner *runner, const char *got, const char *expected,
+       const char *msg, ...)
+{
+	int cond = strcmp(got, expected) == 0;
+
+	va_list ap;
+	va_start(ap, msg);
+	test_result(runner, cond, msg, ap);
+	va_end(ap);
+
+	if (!cond) {
+		fprintf(stderr, "  Got:      \"%s\"\n", got);
+		fprintf(stderr, "  Expected: \"%s\"\n", expected);
+	}
+}
+
+int
+test_ok(test_batch_runner *runner)
+{
+	return runner->num_failed == 0;
+}
+
+void
+test_print_summary(test_batch_runner *runner)
+{
+	int num_passed  = runner->num_passed;
+	int num_skipped = runner->num_skipped;
+	int num_failed  = runner->num_failed;
+
+	fprintf(stderr, "%d tests passed, %d failed, %d skipped\n",
+		num_passed, num_skipped, num_failed);
+
+	if (test_ok(runner)) {
+		fprintf(stderr, "PASS\n");
+	}
+	else {
+		fprintf(stderr, "FAIL\n");
+	}
+}
+