test/core: add time(3) stub for tis-interpreter

Not sure why a deterministic stub implementation is not provided by
the CI environment[1], even though the public tis-interpreter repositories
contain relevant code[2,3].

[1] https://github.com/TrustInSoft-CI/TrustInSoft-CI/issues/12
[2] https://github.com/TrustInSoft/tis-kernel/blob/748d28baba90c03c0f5f4654d2e7bb47dfbe4e7d/share/tis-interpreter/common_time.c#L148
[3] https://github.com/TrustInSoft/tis-interpreter/blob/33132ce4a825494ea48bf2dd6fd03a56b62cc5c3/tis-interpreter/common_helpers/common_time.c#L138

1 files changed, 9 insertions, 0 deletions

diff --git a/core/tap.h b/core/tap.h
index 2a16ef6..390eb6f 100644
--- a/core/tap.h
+++ b/core/tap.h
@@ -36,6 +36,15 @@ static int exit_status() {
 	} \
 } while (0)
 
+#include <time.h>
+time_t time(time_t *p)
+{
+	static time_t value;
+	value++;
+	if (p) *p = value;
+	return value;
+}
+
 #else
 #include <ccan/tap/tap.h>
 #define TIS_INTERPRETER 0