[PATCH 1/3] Add support for table-driven testing.
Sam Spilsbury
smspillaz at gmail.com
Tue Sep 10 09:15:17 PDT 2013
The new TEST_P macro takes a function name and a "data" argument to
point to an arbitrary array of known size of test data. This allows
multiple tests to be run with different datasets. The array is stored
as a void * but advanced by a known size on each iteration.
The data for each invocation of the test is provided as a "data" argument,
it is the responsibility of the test to cast it to something sensible.
---
tests/weston-test-runner.c | 117 ++++++++++++++++++++++++++++-----------------
tests/weston-test-runner.h | 52 +++++++++++++-------
2 files changed, 108 insertions(+), 61 deletions(-)
diff --git a/tests/weston-test-runner.c b/tests/weston-test-runner.c
index 27ea9e4..1eb93ea 100644
--- a/tests/weston-test-runner.c
+++ b/tests/weston-test-runner.c
@@ -46,18 +46,81 @@ find_test(const char *name)
}
static void
-run_test(const struct weston_test *t)
+run_test(const struct weston_test *t, void *data)
{
- t->run();
+ t->run(data);
exit(EXIT_SUCCESS);
}
+static int
+exec_and_report_test(const struct weston_test *t, void *test_data, int iteration)
+{
+ int success = 0;
+ int hardfail = 0;
+ siginfo_t info;
+
+ pid_t pid = fork();
+ assert(pid >= 0);
+
+ if (pid == 0)
+ run_test(t, test_data); /* never returns */
+
+ if (waitid(P_ALL, 0, &info, WEXITED)) {
+ fprintf(stderr, "waitid failed: %m\n");
+ abort();
+ }
+
+ if (test_data)
+ fprintf(stderr, "test \"%s/%i\":\t", t->name, iteration);
+ else
+ fprintf(stderr, "test \"%s\":\t", t->name);
+
+ switch (info.si_code) {
+ case CLD_EXITED:
+ fprintf(stderr, "exit status %d", info.si_status);
+ if (info.si_status == EXIT_SUCCESS)
+ success = 1;
+ break;
+ case CLD_KILLED:
+ case CLD_DUMPED:
+ fprintf(stderr, "signal %d", info.si_status);
+ if (info.si_status != SIGABRT)
+ hardfail = 1;
+ break;
+ }
+
+ if (t->must_fail)
+ success = !success;
+
+ if (success && !hardfail) {
+ fprintf(stderr, ", pass.\n");
+ return 1;
+ } else {
+ fprintf(stderr, ", fail.\n");
+ return 0;
+ }
+}
+
+/* Returns number of tests and number of pass / fail in param args */
+static int
+iterate_test(const struct weston_test *t, int *passed)
+{
+ int i;
+ void *current_test_data = (void *) t->table_data;
+ for (i = 0; i < t->n_elements; ++i, current_test_data += t->element_size)
+ {
+ if (exec_and_report_test(t, current_test_data, i))
+ ++(*passed);
+ }
+
+ return t->n_elements;
+}
+
int main(int argc, char *argv[])
{
const struct weston_test *t;
- pid_t pid;
- int total, pass;
- siginfo_t info;
+ int total = 0;
+ int pass = 0;
if (argc == 2) {
t = find_test(argv[1]);
@@ -66,51 +129,15 @@ int main(int argc, char *argv[])
exit(EXIT_FAILURE);
}
- run_test(t);
+ run_test(t, (void *) t->table_data);
}
- pass = 0;
for (t = &__start_test_section; t < &__stop_test_section; t++) {
- int success = 0;
- int hardfail = 0;
-
- pid = fork();
- assert(pid >= 0);
-
- if (pid == 0)
- run_test(t); /* never returns */
-
- if (waitid(P_ALL, 0, &info, WEXITED)) {
- fprintf(stderr, "waitid failed: %m\n");
- abort();
- }
-
- fprintf(stderr, "test \"%s\":\t", t->name);
- switch (info.si_code) {
- case CLD_EXITED:
- fprintf(stderr, "exit status %d", info.si_status);
- if (info.si_status == EXIT_SUCCESS)
- success = 1;
- break;
- case CLD_KILLED:
- case CLD_DUMPED:
- fprintf(stderr, "signal %d", info.si_status);
- if (info.si_status != SIGABRT)
- hardfail = 1;
- break;
- }
-
- if (t->must_fail)
- success = !success;
-
- if (success && !hardfail) {
- pass++;
- fprintf(stderr, ", pass.\n");
- } else
- fprintf(stderr, ", fail.\n");
+ int number_passed_in_test = 0;
+ total += iterate_test(t, &number_passed_in_test);
+ pass += number_passed_in_test;
}
- total = &__stop_test_section - &__start_test_section;
fprintf(stderr, "%d tests, %d pass, %d fail\n",
total, pass, total - pass);
diff --git a/tests/weston-test-runner.h b/tests/weston-test-runner.h
index 41df386..457cf31 100644
--- a/tests/weston-test-runner.h
+++ b/tests/weston-test-runner.h
@@ -1,5 +1,6 @@
/*
* Copyright © 2012 Intel Corporation
+ * Copyright © 2013 Sam Spilsbury <smspillaz at gmail.com>
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
@@ -23,34 +24,53 @@
#ifndef _WESTON_TEST_RUNNER_H_
#define _WESTON_TEST_RUNNER_H_
+#include <stdlib.h>
+
#ifdef NDEBUG
#error "Tests must not be built with NDEBUG defined, they rely on assert()."
#endif
struct weston_test {
const char *name;
- void (*run)(void);
+ void (*run)(void *);
+ const void *table_data;
+ size_t element_size;
+ int n_elements;
int must_fail;
-} __attribute__ ((aligned (16)));
+} __attribute__ ((aligned (32)));
-#define TEST(name) \
- static void name(void); \
+#define TEST_BEGIN(name, arg) \
+ static void name(arg)
+
+#define TEST_COMMON(func, name, ret, data, size, n_elem) \
+ static void func(void *); \
\
const struct weston_test test##name \
- __attribute__ ((section ("test_section"))) = { \
- #name, name, 0 \
- }; \
- \
- static void name(void)
+ __attribute__ ((section ("test_section"))) = \
+ { \
+ #name, func, data, size, n_elem, ret \
+ };
-#define FAIL_TEST(name) \
+#define NO_ARG_TEST(name, ret) \
+ TEST_COMMON(wrap##name, name, ret, NULL, 0, 1) \
static void name(void); \
+ static void wrap##name(void *data) \
+ { \
+ (void) data; \
+ name(); \
+ } \
\
- const struct weston_test test##name \
- __attribute__ ((section ("test_section"))) = { \
- #name, name, 1 \
- }; \
- \
- static void name(void)
+ TEST_BEGIN(name, void)
+
+#define ARG_TEST(name, ret, test_data) \
+ TEST_COMMON(name, name, ret, test_data, \
+ sizeof(test_data[0]), \
+ sizeof(test_data) / sizeof (test_data[0])) \
+ TEST_BEGIN(name, void *data) \
+
+#define TEST(name) NO_ARG_TEST(name, 0)
+#define FAIL_TEST(name) NO_ARG_TEST(name, 1)
+#define TEST_P(name, data) ARG_TEST(name, 0, data)
+#define FAIL_TEST_P(name, data) ARG_TEST(name, 1, data)
#endif
--
1.8.3.2
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