prototype unittest for JSON Exporter

test for unimplemented method

tests/test_plugin.py

@@ -0,0 +1,27 @@
+import pytest
+
+from jrnl.plugins.exporter import testing_exporter, json_exporter
+from jrnl import Entry, Journal
+from datetime import date
+import json
+
+@pytest.fixture()
+def create_entry():
+    entry = Entry.Entry(journal=Journal.Journal(),text="This is the entry text", date=date(year=2001,month=1,day=1),starred=True)
+    yield entry
+
+class TestBaseExporter(testing_exporter.Exporter): 
+    def test_unimplemented_export(self, create_entry): 
+        entry = create_entry
+        with pytest.raises(NotImplementedError):
+            self.export_entry(entry)
+class TestJsonExporter(json_exporter.Exporter): 
+    def test_json_exporter_name(self): 
+        assert "json" in self.names
+
+    def test_export_entry(self,create_entry): 
+        entry = create_entry
+        exported = self.export_entry(entry)
+        deserialized_export = json.loads(exported)
+        assert deserialized_export['title'] == "This is the entry text"
+        assert deserialized_export['date'] == '2001-01-01'