t/unit-tests/t-basic.c

   1 #include "test-lib.h"
   2
   3 /*
   4  * The purpose of this "unit test" is to verify a few invariants of the unit
   5  * test framework itself, as well as to provide examples of output from actually
   6  * failing tests. As such, it is intended that this test fails, and thus it
   7  * should not be run as part of `make unit-tests`. Instead, we verify it behaves
   8  * as expected in the integration test t0080-unit-test-output.sh
   9  */
  10
  11 /* Used to store the return value of check_int(). */
  12 static int check_res;
  13
  14 /* Used to store the return value of TEST(). */
  15 static int test_res;
  16
  17 static void t_res(int expect)
  18 {
  19         check_int(check_res, ==, expect);
  20         check_int(test_res, ==, expect);
  21 }
  22
  23 static void t_todo(int x)
  24 {
  25         check_res = TEST_TODO(check(x));
  26 }
  27
  28 static void t_skip(void)
  29 {
  30         check(0);
  31         test_skip("missing prerequisite");
  32         check(1);
  33 }
  34
  35 static int do_skip(void)
  36 {
  37         test_skip("missing prerequisite");
  38         return 1;
  39 }
  40
  41 static void t_skip_todo(void)
  42 {
  43         check_res = TEST_TODO(do_skip());
  44 }
  45
  46 static void t_todo_after_fail(void)
  47 {
  48         check(0);
  49         TEST_TODO(check(0));
  50 }
  51
  52 static void t_fail_after_todo(void)
  53 {
  54         check(1);
  55         TEST_TODO(check(0));
  56         check(0);
  57 }
  58
  59 static void t_messages(void)
  60 {
  61         check_str("\thello\\", "there\"\n");
  62         check_str("NULL", NULL);
  63         check_char('a', ==, '\n');
  64         check_char('\\', ==, '\'');
  65 }
  66
  67 static void t_empty(void)
  68 {
  69         ; /* empty */
  70 }
  71
  72 int cmd_main(int argc, const char **argv)
  73 {
  74         test_res = TEST(check_res = check_int(1, ==, 1), "passing test");
  75         TEST(t_res(1), "passing test and assertion return 1");
  76         test_res = TEST(check_res = check_int(1, ==, 2), "failing test");
  77         TEST(t_res(0), "failing test and assertion return 0");
  78         test_res = TEST(t_todo(0), "passing TEST_TODO()");
  79         TEST(t_res(1), "passing TEST_TODO() returns 1");
  80         test_res = TEST(t_todo(1), "failing TEST_TODO()");
  81         TEST(t_res(0), "failing TEST_TODO() returns 0");
  82         test_res = TEST(t_skip(), "test_skip()");
  83         TEST(check_int(test_res, ==, 1), "skipped test returns 1");
  84         test_res = TEST(t_skip_todo(), "test_skip() inside TEST_TODO()");
  85         TEST(t_res(1), "test_skip() inside TEST_TODO() returns 1");
  86         test_res = TEST(t_todo_after_fail(), "TEST_TODO() after failing check");
  87         TEST(check_int(test_res, ==, 0), "TEST_TODO() after failing check returns 0");
  88         test_res = TEST(t_fail_after_todo(), "failing check after TEST_TODO()");
  89         TEST(check_int(test_res, ==, 0), "failing check after TEST_TODO() returns 0");
  90         TEST(t_messages(), "messages from failing string and char comparison");
  91         test_res = TEST(t_empty(), "test with no checks");
  92         TEST(check_int(test_res, ==, 0), "test with no checks returns 0");
  93
  94         return test_done();
  95 }