add test case (to check ISSUE 23)

src/test/java/fr/greencodeinitiative/python/checks/AvoidGlobalVariableInFunctionCheckTest.java

@@ -23,6 +23,8 @@
 public class AvoidGlobalVariableInFunctionCheckTest {
     @Test
     public void test() {
-        PythonCheckVerifier.verify("src/test/resources/checks/avoidGlobalVariableInFunction.py", new AvoidGlobalVariableInFunctionCheck());
+        PythonCheckVerifier.verify("src/test/resources/checks/avoidGlobalVariableInFunctionNonCompliant.py", new AvoidGlobalVariableInFunctionCheck());
+        //PythonCheckVerifier.verifyNoIssue("src/test/resources/checks/avoidGlobalVariableInFunctionCompliant.py", new AvoidGlobalVariableInFunctionCheck());
+        PythonCheckVerifier.verify("src/test/resources/checks/avoidGlobalVariableInFunctionNonCompliant2.py", new AvoidGlobalVariableInFunctionCheck());
     }
 }

src/test/resources/checks/avoidGlobalVariableInFunctionNonCompliant2.py

@@ -0,0 +1,10 @@
+# example from official Python documentation
+
+from collections.abc import Sequence
+from typing import TypeVar
+
+U = TypeVar('U')                    # Declare type variable "U"
+
+def second(l: Sequence[U]) -> U:    # Function is generic over the TypeVar "U"
+    print(U) #Noncompliant
+    return l[1]