tests/getenv.c

   1 #include <stdlib.h>
   2
   3 #include <darwintest.h>
   4
   5 T_DECL(setenv_getenv, "getenv returns value set by setenv")
   6 {
   7         char *name = "foo";
   8         char *value = "bar";
   9         int setenv_rc = setenv(name, value, 0);
  10         T_EXPECT_EQ(0, setenv_rc, "setenv must succeed with 0 return code");
  11         char *getenv_result = getenv(name);
  12         T_EXPECT_EQ_STR(value, getenv_result, "getenv must return setenv argument");
  13 }
  14
  15 T_DECL(setenv_overwrite, "getenv returns the latest setenv argument")
  16 {
  17         char *name = "foo";
  18         char *first_value = "bar";
  19         char *second_value = "baz";
  20         int setenv_rc = 0;
  21         setenv_rc = setenv(name, first_value, 0);
  22         T_EXPECT_EQ(0, setenv_rc, "setenv must succeed with 0 return code");
  23         setenv_rc = setenv(name, second_value, 1);
  24         T_EXPECT_EQ(0, setenv_rc, "setenv must succeed with 0 return code");
  25         char *getenv_result = getenv(name);
  26         T_EXPECT_EQ_STR(second_value, getenv_result, "getenv must return the latest setenv argument");
  27 }
  28
  29 T_DECL(setenv_dont_overwrite, "setenv respects overwrite")
  30 {
  31         char *name = "foo";
  32         char *first_value = "bar";
  33         char *second_value = "baz";
  34         int setenv_rc = 0;
  35         setenv_rc = setenv(name, first_value, 0);
  36         T_EXPECT_EQ(0, setenv_rc, "setenv must succeed with 0 return code");
  37         setenv_rc = setenv(name, second_value, 0);
  38         T_EXPECT_EQ(0, setenv_rc, "setenv must succeed with 0 return code");
  39         char *getenv_result = getenv(name);
  40         T_EXPECT_EQ_STR(first_value, getenv_result, "the second setenv must not overwrite the first one");
  41 }
  42
  43 /* There are tests for leading '=' in values because BSDs used to strip them off: rdar://problem/19342460 */
  44
  45 T_DECL(setenv_accepts_leading_eq_sign, "setenv accepts values starting with '='")
  46 {
  47         char *name = "foo";
  48         char *value = "=bar";
  49         int setenv_rc = setenv(name, value, 0);
  50         T_EXPECT_EQ(0, setenv_rc, "setenv must succeed with 0 return code");
  51         char *getenv_result = getenv(name);
  52         T_EXPECT_EQ_STR(value, getenv_result, "getenv must return setenv argument");
  53 }
  54
  55 T_DECL(setenv_accepts_leading_eq_sign_overwrite, "setenv accepts values starting with '=' when overwriting an existing value")
  56 {
  57         char *name = "foo";
  58         char *first_value = "bar";
  59         char *second_value = "=baz";
  60         int setenv_rc = 0;
  61         setenv_rc = setenv(name, first_value, 0);
  62         T_EXPECT_EQ(0, setenv_rc, "setenv must succeed with 0 return code");
  63         setenv_rc = setenv(name, second_value, 1);
  64         T_EXPECT_EQ(0, setenv_rc, "setenv must succeed with 0 return code");
  65         char *getenv_result = getenv(name);
  66         T_EXPECT_EQ_STR(second_value, getenv_result, "getenv must return the latest setenv argument");
  67 }