Added a facility to do timeouts in test functions. Also started cleaning up the weird TimerNsec abstractions.

test/initmain.c

@@ -1,7 +1,6 @@
 // 10 april 2019
 #include <string.h>
-#include "../ui.h"
-#include "testing.h"
+#include "test.h"
 
 // TODO fix up the formatting of testing.c so we can use newlines on the got/want stuff
 
@@ -60,7 +59,7 @@ testingTest(QueueMain)
 	int flag = 0;
 
 	uiQueueMain(queued, &flag);
-	uiMain();
+	timeout_uiMain(t, 5 * testingTimerNsecPerSec, 0);
 	if (flag != 1)
 		testingTErrorf(t, "uiQueueMain didn't set flag properly: got %d, want 1", flag);
 }

test/main.c

@@ -1,5 +1,17 @@
 // 10 april 2019
-#include "testing.h"
+#include "test.h"
+
+static void timeoutMain(testingT *t, void *data)
+{
+	uiMain();
+}
+
+void timeout_uiMain(testingT *t, int64_t timeout, int failNowOnError)
+{
+	testingRunWithTimeout(t, timeout,
+		timeoutMain, NULL,
+		"uiMain()", failNowOnError);
+}
 
 int main(void)
 {

test/meson.build

@@ -9,9 +9,15 @@ libui_test_sources = [
 if libui_OS == 'windows'
 	libui_test_sources += ['testing_windows.c']
 elif libui_OS == 'darwin'
-	libui_test_sources += ['testing_darwin.c']
+	libui_test_sources += [
+		'testing_darwin.c',
+		'testing_darwinunix.c',
+	]
 else
-	libui_test_sources += ['testing_unix.c']
+	libui_test_sources += [
+		'testing_darwinunix.c',
+		'testing_unix.c',
+	]
 endif
 
 libui_test_deps = []

test/test.h

@@ -0,0 +1,6 @@
+// 28 april 2019
+#include "../ui.h"
+#include "testing.h"
+
+// main.c
+extern void timeout_uiMain(testingT *t, int64_t timeout, int failNowOnError);

test/testing.c

@@ -148,9 +148,9 @@ static void testsetRun(struct testset *set, int *anyFailed)
 		} else if (t->skipped)
 			// note that failed overrides skipped
 			status = "SKIP";
-		timerstr = testingTimerString(timer);
+		timerstr = testingTimerNsecString(testingTimerNsec(timer));
 		printf("--- %s: %s (%s)\n", status, t->name, timerstr);
-		testingFreeTimerString(timerstr);
+		testingFreeTimerNsecString(timerstr);
 		t++;
 	}
 	testingFreeTimer(timer);
@@ -221,13 +221,13 @@ static void returnNow(testingT *t)
 	}
 }
 
-void testingprivTFailNow(testingT *t)
+void testingTFailNow(testingT *t)
 {
 	testingTFail(t);
 	returnNow(t);
 }
 
-void testingprivTSkipNow(testingT *t)
+void testingTSkipNow(testingT *t)
 {
 	t->skipped = 1;
 	returnNow(t);
@@ -306,9 +306,8 @@ static void fillIntPart(char *s, int *start, uint64_t unsec)
 	}
 }
 
-char *testingTimerString(testingTimer *t)
+char *testingTimerNsecString(int64_t nsec)
 {
-	int64_t nsec;
 	uint64_t unsec;
 	int neg;
 	char *s;
@@ -321,7 +320,6 @@ char *testingTimerString(testingTimer *t)
 	memset(s, 0, 33 * sizeof (char));
 	start = 32;
 
-	nsec = testingTimerNsec(t);
 	if (nsec == 0) {
 		s[0] = '0';
 		s[1] = 's';
@@ -368,7 +366,7 @@ char *testingTimerString(testingTimer *t)
 	return s;
 }
 
-void testingFreeTimerString(char *s)
+void testingFreeTimerNsecString(char *s)
 {
 	free(s);
 }

test/testing.h

@@ -66,6 +66,7 @@ extern void testingTDefer(testingT *t, void (*f)(testingT *t, void *data), void
 
 typedef struct testingTimer testingTimer;
 
+#define testingTimerNsecPerUsec ((int64_t) 1000)
 #define testingTimerNsecPerSec ((int64_t) 1000000000)
 
 extern testingTimer *testingNewTimer(void);
@@ -73,8 +74,11 @@ extern void testingFreeTimer(testingTimer *t);
 extern void testingTimerStart(testingTimer *t);
 extern void testingTimerEnd(testingTimer *t);
 extern int64_t testingTimerNsec(testingTimer *t);
-extern char *testingTimerString(testingTimer *t);
-extern void testingFreeTimerString(char *s);
+
+extern char *testingTimerNsecString(int64_t nsec);
+extern void testingFreeTimerNsecString(char *s);
+
+extern void testingRunWithTimeout(testingT *t, int64_t timeout, void (*f)(testingT *t, void *data), void *data, const char *comment, int failNowOnError);
 
 extern void testingprivRegisterTest(const char *, void (*)(testingT *), const char *, long);
 extern void testingprivRegisterTestBefore(const char *, void (*)(testingT *), const char *, long);

test/testing_darwinunix.c

@@ -0,0 +1,50 @@
+// 28 april 2019
+#include <errno.h>
+#include <inttypes.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/time.h>
+#include "testing.h"
+
+static jmp_buf timeout_ret;
+
+static void onTimeout(int sig)
+{
+	longjmp(timeout_ret, 1);
+}
+
+void testingRunWithTimeout(testingT *t, int64_t timeout, void (*f)(testingT *t, void *data), void *data, const char *comment, int failNowOnError)
+{
+	char *timeoutstr;
+	sig_t prevsig;
+	struct itimerval timer, prevtimer;
+	int setitimerError = 0;
+
+	timeoutstr = testingTimerNsecString(timeout);
+	prevsig = signal(SIGALRM, onTimeout);
+
+	timer.it_interval.tv_sec = 0;
+	timer.it_interval.tv_usec = 0;
+	timer.it_value.tv_sec = timeout / testingTimerNsecPerSec;
+	timer.it_value.tv_usec = (timeout % testingTimerNsecPerSec) / testingTimerNsecPerUsec;
+	if (setitimer(ITIMER_REAL, &timer, &prevtimer) != 0) {
+		setitimerError = errno;
+		testingTErrorf(t, "error applying %s timeout: %s", comment, strerror(setitimerError));
+		goto out;
+	}
+
+	if (setjmp(timeout_ret) == 0) {
+		(*f)(t, data);
+		failNowOnError = 0;		// we succeeded
+	} else
+		testingTErrorf(t, "%s timeout passed (%s)", comment, timeoutstr);
+
+out:
+	if (setitimerError == 0)
+		setitimer(ITIMER_REAL, &prevtimer, NULL);
+	signal(SIGALRM, prevsig);
+	testingFreeTimerNsecString(timeoutstr);
+	if (failNowOnError)
+		testingTFailNow(t);
+}