tools/ccanlint: build tests are now compulsory

Offer to run debugger when test fails, with breakpoint.

tools/ccanlint/ccanlint.c

@@ -241,7 +241,7 @@ int main(int argc, char *argv[])
 {
 	int c;
 	bool summary = false;
-	unsigned int score, total_score;
+	unsigned int score = 0, total_score = 0;
 	struct manifest *m;
 	struct ccanlint *i;
 	const char *prefix = "";
@@ -290,7 +290,6 @@ int main(int argc, char *argv[])
 
 	if (verbose)
 		printf("\nNormal tests:\n");
-	score = total_score = 0;
 	while ((i = get_next_test(&normal_tests)) != NULL)
 		run_test(i, summary, &score, &total_score, m);
 

tools/ccanlint/tests/run_tests.c → tools/ccanlint/compulsory_tests/run_tests.c

@@ -21,63 +21,91 @@ static const char *can_run(struct manifest *m)
 	return NULL;
 }
 
+struct run_tests_result {
+	struct list_node list;
+	struct ccan_file *file;
+	const char *output;
+};
+
 static void *do_run_tests(struct manifest *m)
 {
 	struct list_head *list = talloc(m, struct list_head);
-	char *failures = talloc_strdup(m, "");
+	struct run_tests_result *res;
 	struct ccan_file *i;
+	char *cmdout;
 
 	list_head_init(list);
 
 	list_for_each(&m->run_tests, i, list) {
-		char *testout;
 		run_tests.total_score++;
 		/* FIXME: timeout here */
-		testout = run_command(m, i->compiled);
-		if (!testout)
-			continue;
-		failures = talloc_asprintf_append(failures,
-						  "Running %s failed:\n",
-						  i->name);
-		failures = talloc_append_string(failures, testout);
+		cmdout = run_command(m, i->compiled);
+		if (cmdout) {
+			res = talloc(list, struct run_tests_result);
+			res->file = i;
+			res->output = talloc_steal(res, cmdout);
+			list_add_tail(list, &res->list);
+		}
 	}
 
 	list_for_each(&m->api_tests, i, list) {
-		char *testout;
 		run_tests.total_score++;
 		/* FIXME: timeout here */
-		testout = run_command(m, i->compiled);
-		if (!testout)
-			continue;
-		failures = talloc_asprintf_append(failures,
-						  "Running %s failed:\n",
-						  i->name);
-		failures = talloc_append_string(failures, testout);
+		cmdout = run_command(m, i->compiled);
+		if (cmdout) {
+			res = talloc(list, struct run_tests_result);
+			res->file = i;
+			res->output = talloc_steal(res, cmdout);
+			list_add_tail(list, &res->list);
+		}
 	}
 
-	if (streq(failures, "")) {
-		talloc_free(failures);
-		failures = NULL;
+	if (list_empty(list)) {
+		talloc_free(list);
+		list = NULL;
 	}
 
-	return failures;
+	return list;
 }
 
 static unsigned int score_run_tests(struct manifest *m, void *check_result)
 {
-	/* FIXME: be cleverer here */
-	return 0;
+	struct list_head *list = check_result;
+	struct run_tests_result *i;
+	unsigned int score = run_tests.total_score;
+
+	list_for_each(list, i, list)
+		score--;
+	return score;
 }
 
 static const char *describe_run_tests(struct manifest *m,
 					  void *check_result)
 {
+	struct list_head *list = check_result;
 	char *descrip = talloc_strdup(check_result, "Running tests failed:\n");
+	struct run_tests_result *i;
 
-	return talloc_append_string(descrip, check_result);
+	list_for_each(list, i, list)
+		descrip = talloc_asprintf_append(descrip, "Running %s:\n%s",
+						 i->file->name, i->output);
+	return descrip;
 }
 
-/* FIXME: Handle by offering to run under debugger... */
+static void run_under_debugger(struct manifest *m, void *check_result)
+{
+	char *command;
+	struct list_head *list = check_result;
+	struct run_tests_result *first;
+
+	if (!ask("Should I run the first failing test under the debugger?"))
+		return;
+
+	first = list_top(list, struct run_tests_result, list);
+	command = talloc_asprintf(m, "gdb -ex 'break tap.c:136' -ex 'run' %s",
+				  first->file->compiled);
+	system(command);
+}
 
 struct ccanlint run_tests = {
 	.name = "run and api tests run successfully",
@@ -85,6 +113,7 @@ struct ccanlint run_tests = {
 	.check = do_run_tests,
 	.describe = describe_run_tests,
 	.can_run = can_run,
+	.handle = run_under_debugger
 };
 
 REGISTER_TEST(run_tests, &compile_tests, NULL);

tools/tools.h

@@ -9,7 +9,7 @@
 #define SPACE_CHARS	" \f\n\r\t\v"
 
 /* FIXME: Remove some -I */
-#define CFLAGS "-O -Wall -Wundef -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes -Wmissing-declarations -Werror -Iccan/ -I. -I.. -I../.."
+#define CFLAGS "-g -Wall -Wundef -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes -Wmissing-declarations -Werror -Iccan/ -I. -I.. -I../.."
 
 /* This actually compiles and runs the info file to get dependencies. */
 char **get_deps(const void *ctx, const char *dir, const char *name,