Merge pull request #526 from AndreMiras/feature/basic_jnius_config_tests

Basic jnius_config unit testing

tests/test_jnius_config.py

@@ -0,0 +1,35 @@
+import sys
+import pytest
+import jnius_config
+
+
+class TestJniusConfig:
+    def setup_method(self):
+        """Resets the options global."""
+        jnius_config.options = []
+        jnius_config.vm_running = False
+
+    def teardown_method(self):
+        self.setup_method()
+
+    def test_set_options(self):
+        assert jnius_config.vm_running is False
+        assert jnius_config.options == []
+        jnius_config.set_options("option1", "option2")
+        assert jnius_config.options == ["option1", "option2"]
+        jnius_config.set_options("option3")
+        assert jnius_config.options == ["option3"]
+
+    def test_set_options_vm_running(self):
+        assert jnius_config.vm_running is False
+        jnius_config.set_options("option1", "option2")
+        jnius_config.vm_running = True
+        with pytest.raises(ValueError) as ex_info:
+            jnius_config.set_options("option1", "option2")
+        pytest.mark.skipif(
+            sys.version_info < (3, 5), reason="Exception args are different on Python 2"
+        )
+        assert (
+            "VM is already running, can't set options; VM started at"
+            in ex_info.value.args[0]
+        )