testsuite: match outputs of test with a known correct one

Tests may put the correct output in a file and tell testsuite to check
if it matches the output from the test running.

Testsuite compares the outputs while running the test: it creates a pipe
between parent and child; parent reads both stdout and stderr from child
and compares with the correct output.

1 files changed, 4 insertions, 0 deletions

diff --git a/testsuite/testsuite.h b/testsuite/testsuite.h
index e06ecf2..b2831d4 100644
--- a/testsuite/testsuite.h
+++ b/testsuite/testsuite.h
@@ -20,6 +20,10 @@ enum test_config {
 struct test {
 	const char *name;
 	const char *description;
+	struct {
+		const char *stdout;
+		const char *stderr;
+	} output;
 	testfunc func;
 	const char *config[_TC_LAST];
 	bool need_spawn;