test: add unit tests for setXBlockPublishState reducer

Author: bra-i-am

src/course-unit/data/slice.test.js

@@ -0,0 +1,31 @@
+import { reducer, setXBlockPublishState } from './slice';
+
+describe('setXBlockPublishState reducer', () => {
+  it('sets published and hasChanges correctly when payload is true', () => {
+    const prevState = {
+      courseSectionVertical: {
+        xblockInfo: {
+          published: false,
+          hasChanges: true,
+        },
+      },
+    };
+    const nextState = reducer(prevState, setXBlockPublishState(true));
+    expect(nextState.courseSectionVertical.xblockInfo.published).toBe(true);
+    expect(nextState.courseSectionVertical.xblockInfo.hasChanges).toBe(false);
+  });
+
+  it('sets published and hasChanges correctly when payload is false', () => {
+    const prevState = {
+      courseSectionVertical: {
+        xblockInfo: {
+          published: true,
+          hasChanges: false,
+        },
+      },
+    };
+    const nextState = reducer(prevState, setXBlockPublishState(false));
+    expect(nextState.courseSectionVertical.xblockInfo.published).toBe(false);
+    expect(nextState.courseSectionVertical.xblockInfo.hasChanges).toBe(true);
+  });
+});