1 files changed, 51 insertions, 0 deletions
diff --git a/spec/frontend/runner/components/helpers/masked_value_spec.js b/spec/frontend/runner/components/helpers/masked_value_spec.js
new file mode 100644
index 00000000000..f87315057ec
--- /dev/null
+++ b/spec/frontend/runner/components/helpers/masked_value_spec.js
@@ -0,0 +1,51 @@
+import { GlButton } from '@gitlab/ui';
+import { shallowMount } from '@vue/test-utils';
+import MaskedValue from '~/runner/components/helpers/masked_value.vue';
+
+const mockSecret = '01234567890';
+const mockMasked = '***********';
+
+describe('MaskedValue', () => {
+  let wrapper;
+
+  const findButton = () => wrapper.findComponent(GlButton);
+
+  const createComponent = ({ props = {} } = {}) => {
+    wrapper = shallowMount(MaskedValue, {
+      propsData: {
+        value: mockSecret,
+        ...props,
+      },
+    });
+  };
+
+  beforeEach(() => {
+    createComponent();
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  it('Displays masked value by default', () => {
+    expect(wrapper.text()).toBe(mockMasked);
+  });
+
+  describe('When the icon is clicked', () => {
+    beforeEach(() => {
+      findButton().vm.$emit('click');
+    });
+
+    it('Displays the actual value', () => {
+      expect(wrapper.text()).toBe(mockSecret);
+      expect(wrapper.text()).not.toBe(mockMasked);
+    });
+
+    it('When user clicks again, displays masked value', async () => {
+      await findButton().vm.$emit('click');
+
+      expect(wrapper.text()).toBe(mockMasked);
+      expect(wrapper.text()).not.toBe(mockSecret);
+    });
+  });
+});