tests: Add an xmalloc helper function

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-By: Derek Foreman <derekf@osg.samsung.com>

tests/weston-test-client-helper.c

@@ -32,6 +32,17 @@
 #include "../shared/os-compatibility.h"
 #include "weston-test-client-helper.h"
 
+void *
+fail_on_null(void *p)
+{
+	if (p == NULL) {
+		fprintf(stderr, "out of memory\n");
+		exit(EXIT_FAILURE);
+	}
+	return p;
+}
+
+
 int
 surface_contains(struct surface *surface, int x, int y)
 {

tests/weston-test-client-helper.h

@@ -132,15 +132,19 @@ struct surface {
 	void *data;
 };
 
+void *
+fail_on_null(void *p);
+
 static inline void *
-xzalloc(size_t size)
+xzalloc(size_t s)
 {
-        void *p;
-
-        p = calloc(1, size);
-        assert(p);
+	return fail_on_null(calloc(1, s));
+}
 
-        return p;
+static inline void *
+xmalloc(size_t s)
+{
+	return fail_on_null(malloc(s));
 }
 
 struct client *