tests: Add Unit tests for wl_map and wl_array data structures

We use a simple test-runner helper that runs each test in a separate
process and reports the pass/fail rate at the end.

tests/test-runner.c

@@ -0,0 +1,92 @@
+/*
+ * Copyright © 2012 Intel Corporation
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <assert.h>
+#include "test-runner.h"
+
+extern const struct test __start_test_section, __stop_test_section;
+
+static int
+run_one_test(const char *name)
+{
+	const struct test *t;
+
+	for (t = &__start_test_section; t < &__stop_test_section; t++) {
+		if (strcmp(t->name, name) == 0) {
+			t->run();
+			return EXIT_SUCCESS;
+		}
+	}
+
+	fprintf(stderr, "uknown test: \"%s\"\n", name);
+
+	return EXIT_FAILURE;
+}
+
+int main(int argc, char *argv[])
+{
+	const struct test *t;
+	pid_t pid;
+	int i, total, pass;
+	siginfo_t info;
+
+	if (argc == 2)
+		return run_one_test(argv[1]);
+
+	pass = 0;
+	for (t = &__start_test_section; t < &__stop_test_section; t++) {
+		fprintf(stderr, "running \"%s\"... ", t->name);
+		pid = fork();
+		assert(pid >= 0);
+		if (pid == 0) { 
+			t->run();
+			exit(EXIT_SUCCESS);
+		}
+		if (waitid(P_ALL, 0, &info, WEXITED)) {
+			fprintf(stderr, "waitid failed: %m\n");
+			abort();
+		}
+
+		switch (info.si_code) {
+		case CLD_EXITED:
+			fprintf(stderr, "exit status %d\n", info.si_status);
+			if (info.si_status == EXIT_SUCCESS)
+				pass++;
+			break;
+		case CLD_KILLED:
+		case CLD_DUMPED:
+			fprintf(stderr, "signal %d\n", info.si_status);
+			break;
+		}
+	}
+
+	total = &__stop_test_section - &__start_test_section;
+	fprintf(stderr, "%d tests, %d pass, %d fail\n",
+		total, pass, total - pass);
+
+	return pass == total ? EXIT_SUCCESS : EXIT_FAILURE;
+}