41     ATF_REQUIRE(atf::env::has("PATH"));  in ATF_TEST_CASE_BODY()
42     ATF_REQUIRE(!atf::env::get("PATH").empty());  in ATF_TEST_CASE_BODY()
44     ATF_REQUIRE(!atf::env::has("_UNDEFINED_VARIABLE_"));  in ATF_TEST_CASE_BODY()
54     ATF_REQUIRE(atf::env::has("PATH"));  in ATF_TEST_CASE_BODY()
55     ATF_REQUIRE(atf::env::get("PATH", "default value") != "default value");  in ATF_TEST_CASE_BODY()
57     ATF_REQUIRE_EQ(atf::env::get("_UNDEFINED_VARIABLE_", "foo bar"), "foo bar");  in ATF_TEST_CASE_BODY()
67     ATF_REQUIRE(atf::env::has("PATH"));  in ATF_TEST_CASE_BODY()
68     const std::string& oldval = atf::env::get("PATH");  in ATF_TEST_CASE_BODY()
69     atf::env::set("PATH", "foo-bar");  in ATF_TEST_CASE_BODY()
70     ATF_REQUIRE(atf::env::get("PATH") != oldval);  in ATF_TEST_CASE_BODY()
71     ATF_REQUIRE_EQ(atf::env::get("PATH"), "foo-bar");  in ATF_TEST_CASE_BODY()
73     ATF_REQUIRE(!atf::env::has("_UNDEFINED_VARIABLE_"));  in ATF_TEST_CASE_BODY()
74     atf::env::set("_UNDEFINED_VARIABLE_", "foo2-bar2");  in ATF_TEST_CASE_BODY()
75     ATF_REQUIRE_EQ(atf::env::get("_UNDEFINED_VARIABLE_"), "foo2-bar2");  in ATF_TEST_CASE_BODY()
85     ATF_REQUIRE(atf::env::has("PATH"));  in ATF_TEST_CASE_BODY()
86     atf::env::unset("PATH");  in ATF_TEST_CASE_BODY()
87     ATF_REQUIRE(!atf::env::has("PATH"));  in ATF_TEST_CASE_BODY()