Initial version of bcachefs tests.

So far, these tests just test basic format, fsck, and list functions
under valgrind, as well as a few self-validation tests.

Signed-off-by: Justin Husted <sigstop@gmail.com>

1 files changed, 103 insertions, 0 deletions

diff --git a/tests/test_helper.c b/tests/test_helper.c
new file mode 100644
index 00000000..c7604f0c
--- /dev/null
+++ b/tests/test_helper.c
@@ -0,0 +1,103 @@
+#include <assert.h>
+#include <malloc.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void trick_compiler(int *x);
+
+static void test_abort(void)
+{
+	abort();
+}
+
+static void test_segfault(void)
+{
+	raise(SIGSEGV);
+}
+
+static void test_leak(void)
+{
+	int *p = malloc(sizeof *p);
+	trick_compiler(p);
+}
+
+static void test_undefined(void)
+{
+	int *p = malloc(1);
+	printf("%d\n", *p);
+}
+
+static void test_undefined_branch(void)
+{
+       	int x;
+	trick_compiler(&x);
+
+	if (x)
+		printf("1\n");
+	else
+		printf("0\n");
+}
+
+static void test_read_after_free(void)
+{
+	int *p = malloc(sizeof *p);
+	free(p);
+
+	printf("%d\n", *p);
+}
+
+static void test_write_after_free(void)
+{
+	int *p = malloc(sizeof *p);
+	free(p);
+
+	printf("%d\n", *p);
+}
+
+typedef void (*test_fun)(void);
+
+struct test {
+	const char	*name;
+	test_fun 	fun;
+};
+
+#define TEST(f) { .name = #f, .fun = test_##f, }
+static struct test tests[] = {
+	TEST(abort),
+	TEST(segfault),
+	TEST(leak),
+	TEST(undefined),
+	TEST(undefined_branch),
+	TEST(read_after_free),
+	TEST(write_after_free),
+};
+#define ntests (sizeof tests / sizeof *tests)
+
+int main(int argc, char *argv[])
+{
+	int i;
+
+	if (argc != 2) {
+		fprintf(stderr, "Usage: test_helper <test>\n");
+		exit(1);
+	}
+
+	bool found = false;
+	for (i = 0; i < ntests; ++i)
+		if (!strcmp(argv[1], tests[i].name)) {
+			found = true;
+			printf("Running test: %s\n", tests[i].name);
+			tests[i].fun();
+			break;
+		}
+
+	if (!found) {
+		fprintf(stderr, "Unable to find test: %s\n", argv[1]);
+		exit(1);
+	}
+
+	return 0;
+}