Add some unit tests for the ‘all’ hook

packages/hooks/src/test/index.test.js

@@ -77,6 +77,7 @@ beforeEach( () => {
 
 			delete hooks[ k ];
 		}
+		delete hooks.all;
 	} );
 } );
 
@@ -697,3 +698,47 @@ test( 'removing a filter triggers a hookRemoved action passing all callback deta
 		'my_callback3'
 	);
 } );
+
+test( 'add an all filter and run it any hook to trigger it', () => {
+	addFilter( 'all', 'my_callback', filterA );
+	expect( applyFilters( 'test.filter', 'test' ) ).toBe( 'testa' );
+	expect( applyFilters( 'test.filter-anything', 'test' ) ).toBe( 'testa' );
+} );
+
+test( 'add an all action and run it any hook to trigger it', () => {
+	addAction( 'all', 'my_callback', actionA );
+	addAction( 'test.action', 'my_callback', actionA );// Doesn't get triggered.
+	doAction( 'test.action-anything' );
+	expect( window.actionValue ).toBe( 'a' );
+} );
+
+test( 'add multiple all filters and run it any hook to trigger them', () => {
+	addFilter( 'all', 'my_callback', filterA );
+	addFilter( 'all', 'my_callback', filterB );
+	expect( applyFilters( 'test.filter', 'test' ) ).toBe( 'testab' );
+	expect( applyFilters( 'test.filter-anything', 'test' ) ).toBe( 'testab' );
+} );
+
+test( 'add multiple all actions and run it any hook to trigger them', () => {
+	addAction( 'all', 'my_callback', actionA );
+	addAction( 'all', 'my_callback', actionB );
+	addAction( 'test.action', 'my_callback', actionA ); // Doesn't get triggered.
+	doAction( 'test.action-anything' );
+	expect( window.actionValue ).toBe( 'ab' );
+} );
+
+test( 'add multiple all filters and run it any hook to trigger them by priority', () => {
+	addFilter( 'all', 'my_callback', filterA, 11 );
+	addFilter( 'all', 'my_callback', filterB, 10 );
+	expect( applyFilters( 'test.filter', 'test' ) ).toBe( 'testba' );
+	expect( applyFilters( 'test.filter-anything', 'test' ) ).toBe( 'testba' );
+} );
+
+test( 'add multiple all actions and run it any hook to trigger them by priority', () => {
+	addAction( 'all', 'my_callback', actionA, 11 );
+	addAction( 'all', 'my_callback', actionB, 10 );
+	addAction( 'test.action', 'my_callback', actionA ); // Doesn't get triggered.
+	doAction( 'test.action-anything' );
+	expect( window.actionValue ).toBe( 'ba' );
+} );
+