Added JLGui tests

tests/test_jlgui.py

@@ -0,0 +1,62 @@
+from unittest.mock import Mock
+
+
+from cassini import DEFAULT_TIERS, FolderTierBase, NotebookTierBase
+import cassini.jlgui
+from cassini.jlgui import JLGui
+from cassini.testing_utils import patch_project, get_Project
+
+
+def test_defaults_have_jl_gui():
+    for Tier in DEFAULT_TIERS:
+        assert Tier.gui_cls is JLGui
+
+
+def test_folder_inherited_have_jl_gui():
+    class Tier(FolderTierBase):
+        pass
+
+    assert Tier.gui_cls is JLGui
+
+
+def test_notebook_tier_inherited_have_jlgui():
+    class Tier(NotebookTierBase):
+        pass 
+
+    assert Tier.gui_cls is JLGui
+
+
+def test_gui_instance_made(patch_project):
+    Tier, Project = patch_project
+    tier1 = Project['Tier1']
+    assert isinstance(tier1.gui, JLGui)
+
+
+def test_gui_instance_passed_tier(patch_project):
+    Tier, Project = patch_project
+    tier1 = Project['Tier1']
+    assert tier1.gui.tier is tier1
+
+
+def test_gui_header(monkeypatch):
+    mock = Mock()
+    monkeypatch.setattr(cassini.jlgui, 'publish_display_data', mock)
+    gui = JLGui(None)
+    gui.header()
+    assert mock.called_with({"application/cassini.header+json": {}})
+
+
+def test_meta_editor_single_key(monkeypatch):
+    mock = Mock()
+    monkeypatch.setattr(cassini.jlgui, 'publish_display_data', mock)
+    gui = JLGui(None)
+    gui.meta_editor('key')
+    assert mock.call_args.args == ({"application/cassini.metaeditor+json": {"values": ["key"]}},)
+
+
+def test_meta_editor_multi_key(monkeypatch):
+    mock = Mock()
+    monkeypatch.setattr(cassini.jlgui, 'publish_display_data', mock)
+    gui = JLGui(None)
+    gui.meta_editor(['key1', 'key2'])
+    assert mock.call_args.args == ({"application/cassini.metaeditor+json": {"values": ['key1', 'key2']}},)