Add `getOrCreateInstance` method in base-component (#33276)

Co-authored-by: Rohit Sharma <[email protected]>
Co-authored-by: XhmikosR <[email protected]>

1 files changed, 22 insertions, 0 deletions

diff --git a/js/tests/unit/button.spec.js b/js/tests/unit/button.spec.js
index 90cf76614..be99177e8 100644
--- a/js/tests/unit/button.spec.js
+++ b/js/tests/unit/button.spec.js
@@ -164,4 +164,26 @@ describe('Button', () => {
       expect(Button.getInstance(div)).toEqual(null)
     })
   })
+
+  describe('getOrCreateInstance', () => {
+    it('should return button instance', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const button = new Button(div)
+
+      expect(Button.getOrCreateInstance(div)).toEqual(button)
+      expect(Button.getInstance(div)).toEqual(Button.getOrCreateInstance(div, {}))
+      expect(Button.getOrCreateInstance(div)).toBeInstanceOf(Button)
+    })
+
+    it('should return new instance when there is no button instance', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      expect(Button.getInstance(div)).toEqual(null)
+      expect(Button.getOrCreateInstance(div)).toBeInstanceOf(Button)
+    })
+  })
 })