intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 31 insertions, 0 deletions

diff --git a/util/system/env_ut.cpp b/util/system/env_ut.cpp
new file mode 100644
index 00000000000..e03cc016589
--- /dev/null
+++ b/util/system/env_ut.cpp
@@ -0,0 +1,31 @@
+#include <library/cpp/testing/unittest/registar.h>
+
+#include <util/generic/string.h>
+#include "env.h"
+
+Y_UNIT_TEST_SUITE(EnvTest) {
+    Y_UNIT_TEST(GetSetEnvTest) {
+        TString key = "util_GETENV_TestVar";
+        TString value = "Some value for env var";
+        TString def = "Some default value for env var";
+        // first of all, it should be clear
+        UNIT_ASSERT_VALUES_EQUAL(GetEnv(key), TString());
+        UNIT_ASSERT_VALUES_EQUAL(GetEnv(key, def), def);
+        SetEnv(key, value);
+        // set and see what value we get here
+        UNIT_ASSERT_VALUES_EQUAL(GetEnv(key), value);
+        UNIT_ASSERT_VALUES_EQUAL(GetEnv(key, def), value);
+        // set empty value
+        SetEnv(key, TString());
+        UNIT_ASSERT_VALUES_EQUAL(GetEnv(key), TString());
+
+        // check for long values, see IGNIETFERRO-214
+        TString longKey = "util_GETENV_TestVarLong";
+        TString longValue{1500, 't'};
+        UNIT_ASSERT_VALUES_EQUAL(GetEnv(longKey), TString());
+        SetEnv(longKey, longValue);
+        UNIT_ASSERT_VALUES_EQUAL(GetEnv(longKey), longValue);
+        SetEnv(longKey, TString());
+        UNIT_ASSERT_VALUES_EQUAL(GetEnv(longKey), TString());
+    }
+}