diff --git a/edit-post/store/test/reducer.js b/edit-post/store/test/reducer.js
index eefd38bd2a94cc..415d2c6a7957e9 100644
--- a/edit-post/store/test/reducer.js
+++ b/edit-post/store/test/reducer.js
@@ -23,6 +23,7 @@ describe( 'state', () => {
 			expect( state ).toEqual( {
 				editorMode: 'visual',
 				isGeneralSidebarDismissed: false,
+				isPublishSidebarEnabled: true,
 				panels: { 'post-status': true },
 				features: { fixedToolbar: false },
 				pinnedPluginItems: {},
@@ -51,6 +52,24 @@ describe( 'state', () => {
 			expect( state.isGeneralSidebarDismissed ).toBe( true );
 		} );
 
+		it( 'should disable the publish sidebar', () => {
+			const original = deepFreeze( preferences( undefined, { } ) );
+			const state = preferences( original, {
+				type: 'DISABLE_PUBLISH_SIDEBAR',
+			} );
+
+			expect( state.isPublishSidebarEnabled ).toBe( false );
+		} );
+
+		it( 'should enable the publish sidebar', () => {
+			const original = deepFreeze( preferences( { isPublishSidebarEnabled: false }, { } ) );
+			const state = preferences( original, {
+				type: 'ENABLE_PUBLISH_SIDEBAR',
+			} );
+
+			expect( state.isPublishSidebarEnabled ).toBe( true );
+		} );
+
 		it( 'should set the sidebar panel open flag to true if unset', () => {
 			const state = preferences( deepFreeze( { panels: {} } ), {
 				type: 'TOGGLE_GENERAL_SIDEBAR_EDITOR_PANEL',