1 files changed, 79 insertions, 0 deletions
diff --git a/spec/javascripts/ide/stores/mutations_spec.js b/spec/javascripts/ide/stores/mutations_spec.js
new file mode 100644
index 00000000000..38162a470ad
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+++ b/spec/javascripts/ide/stores/mutations_spec.js
@@ -0,0 +1,79 @@
+import mutations from '~/ide/stores/mutations';
+import state from '~/ide/stores/state';
+import { file } from '../helpers';
+
+describe('Multi-file store mutations', () => {
+  let localState;
+  let entry;
+
+  beforeEach(() => {
+    localState = state();
+    entry = file();
+
+    localState.entries[entry.path] = entry;
+  });
+
+  describe('SET_INITIAL_DATA', () => {
+    it('sets all initial data', () => {
+      mutations.SET_INITIAL_DATA(localState, {
+        test: 'test',
+      });
+
+      expect(localState.test).toBe('test');
+    });
+  });
+
+  describe('TOGGLE_LOADING', () => {
+    it('toggles loading of entry', () => {
+      mutations.TOGGLE_LOADING(localState, { entry });
+
+      expect(entry.loading).toBeTruthy();
+
+      mutations.TOGGLE_LOADING(localState, { entry });
+
+      expect(entry.loading).toBeFalsy();
+    });
+
+    it('toggles loading of entry and sets specific value', () => {
+      mutations.TOGGLE_LOADING(localState, { entry });
+
+      expect(entry.loading).toBeTruthy();
+
+      mutations.TOGGLE_LOADING(localState, { entry, forceValue: true });
+
+      expect(entry.loading).toBeTruthy();
+    });
+  });
+
+  describe('SET_LEFT_PANEL_COLLAPSED', () => {
+    it('sets left panel collapsed', () => {
+      mutations.SET_LEFT_PANEL_COLLAPSED(localState, true);
+
+      expect(localState.leftPanelCollapsed).toBeTruthy();
+
+      mutations.SET_LEFT_PANEL_COLLAPSED(localState, false);
+
+      expect(localState.leftPanelCollapsed).toBeFalsy();
+    });
+  });
+
+  describe('SET_RIGHT_PANEL_COLLAPSED', () => {
+    it('sets right panel collapsed', () => {
+      mutations.SET_RIGHT_PANEL_COLLAPSED(localState, true);
+
+      expect(localState.rightPanelCollapsed).toBeTruthy();
+
+      mutations.SET_RIGHT_PANEL_COLLAPSED(localState, false);
+
+      expect(localState.rightPanelCollapsed).toBeFalsy();
+    });
+  });
+
+  describe('UPDATE_VIEWER', () => {
+    it('sets viewer state', () => {
+      mutations.UPDATE_VIEWER(localState, 'diff');
+
+      expect(localState.viewer).toBe('diff');
+    });
+  });
+});