refactoring: tests for case when env var is class with repr. (#5583)

* tests

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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---------

Co-authored-by: a <1@1.1>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

tests/test_environ.py

@@ -576,6 +576,21 @@ def test_env_get_defaults():
     assert "TEST_REG_DNG" not in env
 
 
+def test_env_class_repr():
+    """Class with repr return string if env var."""
+
+    class Cls:
+        def __init__(self, var):
+            self.var = var
+
+        def __repr__(self):
+            return self.var
+
+    env = Env(CLS=Cls("hello"))
+    assert str(env.get("CLS")) == "hello"
+    assert str(env.__getitem__("CLS")) == "hello"
+
+
 @pytest.mark.parametrize(
     "val,validator",
     [

tests/test_integrations.py

@@ -498,6 +498,24 @@ else:
         0,
     ),
     #
+    # test env with class
+    #
+    (
+        """
+class Cls:
+    def __init__(self, var):
+        self.var = var
+    def __repr__(self):
+        return self.var
+
+$VAR = Cls("hello")
+print($VAR)
+echo $VAR
+""",
+        "hello\nhello\n",
+        0,
+    ),
+    #
     # test logical subprocess operators
     #
     (