1 files changed, 59 insertions, 0 deletions
diff --git a/spec/javascripts/ide/components/jobs/detail/scroll_button_spec.js b/spec/javascripts/ide/components/jobs/detail/scroll_button_spec.js
new file mode 100644
index 00000000000..fff382a107f
--- /dev/null
+++ b/spec/javascripts/ide/components/jobs/detail/scroll_button_spec.js
@@ -0,0 +1,59 @@
+import Vue from 'vue';
+import ScrollButton from '~/ide/components/jobs/detail/scroll_button.vue';
+import mountComponent from '../../../../helpers/vue_mount_component_helper';
+
+describe('IDE job log scroll button', () => {
+  const Component = Vue.extend(ScrollButton);
+  let vm;
+
+  beforeEach(() => {
+    vm = mountComponent(Component, {
+      direction: 'up',
+      disabled: false,
+    });
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  describe('iconName', () => {
+    ['up', 'down'].forEach(direction => {
+      it(`returns icon name for ${direction}`, () => {
+        vm.direction = direction;
+
+        expect(vm.iconName).toBe(`scroll_${direction}`);
+      });
+    });
+  });
+
+  describe('tooltipTitle', () => {
+    it('returns title for up', () => {
+      expect(vm.tooltipTitle).toBe('Scroll to top');
+    });
+
+    it('returns title for down', () => {
+      vm.direction = 'down';
+
+      expect(vm.tooltipTitle).toBe('Scroll to bottom');
+    });
+  });
+
+  it('emits click event on click', () => {
+    spyOn(vm, '$emit');
+
+    vm.$el.querySelector('.btn-scroll').click();
+
+    expect(vm.$emit).toHaveBeenCalledWith('click');
+  });
+
+  it('disables button when disabled is true', done => {
+    vm.disabled = true;
+
+    vm.$nextTick(() => {
+      expect(vm.$el.querySelector('.btn-scroll').hasAttribute('disabled')).toBe(true);
+
+      done();
+    });
+  });
+});