X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=tools%2Fccanlint%2Ftests%2Ftests_coverage.c;h=a8da103f045fed21280625a1bbf9c4c4e44814c8;hp=7943071b76634bfc50ce88e962ba8dfffc4480e6;hb=c1da4104d996fe1a332e5bc01fad937b4773551a;hpb=7bb7cd58c2d9df126dd6072e5f3bec1eb4dc916b

diff --git a/tools/ccanlint/tests/tests_coverage.c b/tools/ccanlint/tests/tests_coverage.c
index 7943071b..a8da103f 100644
--- a/tools/ccanlint/tests/tests_coverage.c
+++ b/tools/ccanlint/tests/tests_coverage.c
@@ -54,7 +54,7 @@ static unsigned int score_coverage(float covered, unsigned total)
 static void analyze_coverage(struct manifest *m, bool full_gcov,
 			     const char *output, struct score *score)
 {
-	char **lines = strsplit(score, output, "\n", NULL);
+	char **lines = strsplit(score, output, "\n");
 	float covered_lines = 0.0;
 	unsigned int i, total_lines = 0;
 	bool lines_matter = false;
@@ -110,6 +110,10 @@ static void analyze_coverage(struct manifest *m, bool full_gcov,
 
 	score->pass = true;
 
+	if (verbose > 1)
+		printf("%u of %u lines covered\n",
+		       (unsigned)covered_lines, total_lines);
+
 	/* Nothing covered?  We can't tell if there's a source file which
 	 * was never executed, or there really is no code to execute, so
 	 * assume the latter: this test deserves no score. */
@@ -127,15 +131,27 @@ static void do_run_coverage_tests(struct manifest *m,
 				  unsigned int *timeleft, struct score *score)
 {
 	struct ccan_file *i;
-	char *cmdout;
+	char *cmdout, *outdir;
 	char *covcmd;
 	bool full_gcov = (verbose > 1);
 	struct list_head *list;
+	bool ran_some = false;
 
 	/* This tells gcov where we put those .gcno files. */
+	outdir = talloc_dirname(score, m->info_file->compiled);
 	covcmd = talloc_asprintf(m, "gcov %s -o %s",
 				 full_gcov ? "" : "-n",
-				 talloc_dirname(score, m->info_file->compiled));
+				 outdir);
+
+	/* Unlink these files afterwards. */
+	if (!keep) {
+		talloc_set_destructor(talloc_asprintf(score,
+						      "%s/run.gcno", outdir),
+				      unlink_file_destructor);
+		talloc_set_destructor(talloc_asprintf(score,
+						      "%s/run.gcda", outdir),
+				      unlink_file_destructor);
+	}
 
 	/* Run them all. */
 	foreach_ptr(list, &m->run_tests, &m->api_tests) {
@@ -150,9 +166,17 @@ static void do_run_coverage_tests(struct manifest *m,
 						 " failed: %s", cmdout);
 				return;
 			}
+			ran_some = true;
 		}
 	}
 
+	/* No tests at all?  0 out of 0 for you... */
+	if (!ran_some) {
+		score->total = score->score = 0;
+		score->pass = true;
+		return;
+	}
+
 	/* Now run gcov: we want output even if it succeeds. */
 	if (!run_command(score, timeleft, &cmdout, "%s", covcmd)) {
 		score->error = talloc_asprintf(score, "Running gcov: %s",