Move some tests from Karma to Jest

6 files changed, 466 insertions, 0 deletions

diff --git a/spec/frontend/vue_mr_widget/components/mr_widget_container_spec.js b/spec/frontend/vue_mr_widget/components/mr_widget_container_spec.js
new file mode 100644
index 00000000000..16c8c939a6f
--- /dev/null
+++ b/spec/frontend/vue_mr_widget/components/mr_widget_container_spec.js
@@ -0,0 +1,51 @@
+import { shallowMount, createLocalVue } from '@vue/test-utils';
+import MrWidgetContainer from '~/vue_merge_request_widget/components/mr_widget_container.vue';
+
+const BODY_HTML = '<div class="test-body">Hello World</div>';
+const FOOTER_HTML = '<div class="test-footer">Goodbye!</div>';
+
+describe('MrWidgetContainer', () => {
+  let wrapper;
+
+  const factory = (options = {}) => {
+    const localVue = createLocalVue();
+
+    wrapper = shallowMount(localVue.extend(MrWidgetContainer), {
+      localVue,
+      ...options,
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  it('has layout', () => {
+    factory();
+
+    expect(wrapper.is('.mr-widget-heading')).toBe(true);
+    expect(wrapper.contains('.mr-widget-content')).toBe(true);
+  });
+
+  it('accepts default slot', () => {
+    factory({
+      slots: {
+        default: BODY_HTML,
+      },
+    });
+
+    expect(wrapper.contains('.mr-widget-content .test-body')).toBe(true);
+  });
+
+  it('accepts footer slot', () => {
+    factory({
+      slots: {
+        default: BODY_HTML,
+        footer: FOOTER_HTML,
+      },
+    });
+
+    expect(wrapper.contains('.mr-widget-content .test-body')).toBe(true);
+    expect(wrapper.contains('.test-footer')).toBe(true);
+  });
+});
diff --git a/spec/frontend/vue_mr_widget/components/mr_widget_icon_spec.js b/spec/frontend/vue_mr_widget/components/mr_widget_icon_spec.js
new file mode 100644
index 00000000000..f7c2376eebf
--- /dev/null
+++ b/spec/frontend/vue_mr_widget/components/mr_widget_icon_spec.js
@@ -0,0 +1,30 @@
+import { shallowMount, createLocalVue } from '@vue/test-utils';
+import MrWidgetIcon from '~/vue_merge_request_widget/components/mr_widget_icon.vue';
+import Icon from '~/vue_shared/components/icon.vue';
+
+const TEST_ICON = 'commit';
+
+describe('MrWidgetIcon', () => {
+  let wrapper;
+
+  beforeEach(() => {
+    const localVue = createLocalVue();
+
+    wrapper = shallowMount(localVue.extend(MrWidgetIcon), {
+      propsData: {
+        name: TEST_ICON,
+      },
+      sync: false,
+      localVue,
+    });
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  it('renders icon and container', () => {
+    expect(wrapper.is('.circle-icon-container')).toBe(true);
+    expect(wrapper.find(Icon).props('name')).toEqual(TEST_ICON);
+  });
+});
diff --git a/spec/frontend/vue_mr_widget/components/states/commit_edit_spec.js b/spec/frontend/vue_mr_widget/components/states/commit_edit_spec.js
new file mode 100644
index 00000000000..994d6255324
--- /dev/null
+++ b/spec/frontend/vue_mr_widget/components/states/commit_edit_spec.js
@@ -0,0 +1,85 @@
+import { createLocalVue, shallowMount } from '@vue/test-utils';
+import CommitEdit from '~/vue_merge_request_widget/components/states/commit_edit.vue';
+
+const localVue = createLocalVue();
+const testCommitMessage = 'Test commit message';
+const testLabel = 'Test label';
+const testInputId = 'test-input-id';
+
+describe('Commits edit component', () => {
+  let wrapper;
+
+  const createComponent = (slots = {}) => {
+    wrapper = shallowMount(localVue.extend(CommitEdit), {
+      localVue,
+      sync: false,
+      propsData: {
+        value: testCommitMessage,
+        label: testLabel,
+        inputId: testInputId,
+      },
+      slots: {
+        ...slots,
+      },
+    });
+  };
+
+  beforeEach(() => {
+    createComponent();
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  const findTextarea = () => wrapper.find('.form-control');
+
+  it('has a correct label', () => {
+    const labelElement = wrapper.find('.col-form-label');
+
+    expect(labelElement.text()).toBe(testLabel);
+  });
+
+  describe('textarea', () => {
+    it('has a correct ID', () => {
+      expect(findTextarea().attributes('id')).toBe(testInputId);
+    });
+
+    it('has a correct value', () => {
+      expect(findTextarea().element.value).toBe(testCommitMessage);
+    });
+
+    it('emits an input event and receives changed value', () => {
+      const changedCommitMessage = 'Changed commit message';
+
+      findTextarea().element.value = changedCommitMessage;
+      findTextarea().trigger('input');
+
+      expect(wrapper.emitted().input[0]).toEqual([changedCommitMessage]);
+      expect(findTextarea().element.value).toBe(changedCommitMessage);
+    });
+  });
+
+  describe('when slots are present', () => {
+    beforeEach(() => {
+      createComponent({
+        header: `<div class="test-header">${testCommitMessage}</div>`,
+        checkbox: `<label slot="checkbox" class="test-checkbox">${testLabel}</label >`,
+      });
+    });
+
+    it('renders header slot correctly', () => {
+      const headerSlotElement = wrapper.find('.test-header');
+
+      expect(headerSlotElement.exists()).toBe(true);
+      expect(headerSlotElement.text()).toBe(testCommitMessage);
+    });
+
+    it('renders checkbox slot correctly', () => {
+      const checkboxSlotElement = wrapper.find('.test-checkbox');
+
+      expect(checkboxSlotElement.exists()).toBe(true);
+      expect(checkboxSlotElement.text()).toBe(testLabel);
+    });
+  });
+});
diff --git a/spec/frontend/vue_mr_widget/components/states/mr_widget_commit_message_dropdown_spec.js b/spec/frontend/vue_mr_widget/components/states/mr_widget_commit_message_dropdown_spec.js
new file mode 100644
index 00000000000..daf1cc2d98b
--- /dev/null
+++ b/spec/frontend/vue_mr_widget/components/states/mr_widget_commit_message_dropdown_spec.js
@@ -0,0 +1,61 @@
+import { createLocalVue, shallowMount } from '@vue/test-utils';
+import { GlDropdownItem } from '@gitlab/ui';
+import CommitMessageDropdown from '~/vue_merge_request_widget/components/states/commit_message_dropdown.vue';
+
+const localVue = createLocalVue();
+const commits = [
+  {
+    title: 'Commit 1',
+    short_id: '78d5b7',
+    message: 'Update test.txt',
+  },
+  {
+    title: 'Commit 2',
+    short_id: '34cbe28b',
+    message: 'Fixed test',
+  },
+  {
+    title: 'Commit 3',
+    short_id: 'fa42932a',
+    message: 'Added changelog',
+  },
+];
+
+describe('Commits message dropdown component', () => {
+  let wrapper;
+
+  const createComponent = () => {
+    wrapper = shallowMount(localVue.extend(CommitMessageDropdown), {
+      localVue,
+      sync: false,
+      propsData: {
+        commits,
+      },
+    });
+  };
+
+  beforeEach(() => {
+    createComponent();
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  const findDropdownElements = () => wrapper.findAll(GlDropdownItem);
+  const findFirstDropdownElement = () => findDropdownElements().at(0);
+
+  it('should have 3 elements in dropdown list', () => {
+    expect(findDropdownElements().length).toBe(3);
+  });
+
+  it('should have correct message for the first dropdown list element', () => {
+    expect(findFirstDropdownElement().text()).toBe('78d5b7 Commit 1');
+  });
+
+  it('should emit a commit title on selecting commit', () => {
+    findFirstDropdownElement().vm.$emit('click');
+
+    expect(wrapper.emitted().input[0]).toEqual(['Update test.txt']);
+  });
+});
diff --git a/spec/frontend/vue_mr_widget/components/states/mr_widget_commits_header_spec.js b/spec/frontend/vue_mr_widget/components/states/mr_widget_commits_header_spec.js
new file mode 100644
index 00000000000..9ee2f88c78d
--- /dev/null
+++ b/spec/frontend/vue_mr_widget/components/states/mr_widget_commits_header_spec.js
@@ -0,0 +1,136 @@
+import { createLocalVue, shallowMount } from '@vue/test-utils';
+import CommitsHeader from '~/vue_merge_request_widget/components/states/commits_header.vue';
+import Icon from '~/vue_shared/components/icon.vue';
+
+const localVue = createLocalVue();
+
+describe('Commits header component', () => {
+  let wrapper;
+
+  const createComponent = props => {
+    wrapper = shallowMount(localVue.extend(CommitsHeader), {
+      localVue,
+      sync: false,
+      propsData: {
+        isSquashEnabled: false,
+        targetBranch: 'master',
+        commitsCount: 5,
+        isFastForwardEnabled: false,
+        ...props,
+      },
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  const findHeaderWrapper = () => wrapper.find('.js-mr-widget-commits-count');
+  const findCommitToggle = () => wrapper.find('.commit-edit-toggle');
+  const findIcon = () => wrapper.find(Icon);
+  const findCommitsCountMessage = () => wrapper.find('.commits-count-message');
+  const findTargetBranchMessage = () => wrapper.find('.label-branch');
+  const findModifyButton = () => wrapper.find('.modify-message-button');
+
+  describe('when fast-forward is enabled', () => {
+    beforeEach(() => {
+      createComponent({
+        isFastForwardEnabled: true,
+        isSquashEnabled: true,
+      });
+    });
+
+    it('has commits count message showing 1 commit', () => {
+      expect(findCommitsCountMessage().text()).toBe('1 commit');
+    });
+
+    it('has button with modify commit message', () => {
+      expect(findModifyButton().text()).toBe('Modify commit message');
+    });
+
+    it('does not have merge commit part of the message', () => {
+      expect(findHeaderWrapper().text()).not.toContain('1 merge commit');
+    });
+  });
+
+  describe('when collapsed', () => {
+    it('toggle has aria-label equal to Expand', () => {
+      createComponent();
+
+      expect(findCommitToggle().attributes('aria-label')).toBe('Expand');
+    });
+
+    it('has a chevron-right icon', () => {
+      createComponent();
+      wrapper.setData({ expanded: false });
+
+      expect(findIcon().props('name')).toBe('chevron-right');
+    });
+
+    describe('when squash is disabled', () => {
+      beforeEach(() => {
+        createComponent();
+      });
+
+      it('has commits count message showing correct amount of commits', () => {
+        expect(findCommitsCountMessage().text()).toBe('5 commits');
+      });
+
+      it('has button with modify merge commit message', () => {
+        expect(findModifyButton().text()).toBe('Modify merge commit');
+      });
+    });
+
+    describe('when squash is enabled', () => {
+      beforeEach(() => {
+        createComponent({ isSquashEnabled: true });
+      });
+
+      it('has commits count message showing one commit when squash is enabled', () => {
+        expect(findCommitsCountMessage().text()).toBe('1 commit');
+      });
+
+      it('has button with modify commit messages text', () => {
+        expect(findModifyButton().text()).toBe('Modify commit messages');
+      });
+    });
+
+    it('has correct target branch displayed', () => {
+      createComponent();
+
+      expect(findTargetBranchMessage().text()).toBe('master');
+    });
+
+    it('does has merge commit part of the message', () => {
+      expect(findHeaderWrapper().text()).toContain('1 merge commit');
+    });
+  });
+
+  describe('when expanded', () => {
+    beforeEach(() => {
+      createComponent();
+      wrapper.setData({ expanded: true });
+    });
+
+    it('toggle has aria-label equal to collapse', done => {
+      wrapper.vm.$nextTick(() => {
+        expect(findCommitToggle().attributes('aria-label')).toBe('Collapse');
+        done();
+      });
+    });
+
+    it('has a chevron-down icon', done => {
+      wrapper.vm.$nextTick(() => {
+        expect(findIcon().props('name')).toBe('chevron-down');
+        done();
+      });
+    });
+
+    it('has a collapse text', done => {
+      wrapper.vm.$nextTick(() => {
+        expect(findHeaderWrapper().text()).toBe('Collapse');
+        done();
+      });
+    });
+  });
+});
diff --git a/spec/frontend/vue_mr_widget/stores/get_state_key_spec.js b/spec/frontend/vue_mr_widget/stores/get_state_key_spec.js
new file mode 100644
index 00000000000..b356ea85cad
--- /dev/null
+++ b/spec/frontend/vue_mr_widget/stores/get_state_key_spec.js
@@ -0,0 +1,103 @@
+import getStateKey from '~/vue_merge_request_widget/stores/get_state_key';
+
+describe('getStateKey', () => {
+  it('should return proper state name', () => {
+    const context = {
+      mergeStatus: 'checked',
+      mergeWhenPipelineSucceeds: false,
+      canMerge: true,
+      onlyAllowMergeIfPipelineSucceeds: false,
+      isPipelineFailed: false,
+      hasMergeableDiscussionsState: false,
+      isPipelineBlocked: false,
+      canBeMerged: false,
+    };
+    const data = {
+      project_archived: false,
+      branch_missing: false,
+      commits_count: 2,
+      has_conflicts: false,
+      work_in_progress: false,
+    };
+    const bound = getStateKey.bind(context, data);
+
+    expect(bound()).toEqual(null);
+
+    context.canBeMerged = true;
+
+    expect(bound()).toEqual('readyToMerge');
+
+    context.canMerge = false;
+
+    expect(bound()).toEqual('notAllowedToMerge');
+
+    context.mergeWhenPipelineSucceeds = true;
+
+    expect(bound()).toEqual('mergeWhenPipelineSucceeds');
+
+    context.isSHAMismatch = true;
+
+    expect(bound()).toEqual('shaMismatch');
+
+    context.isPipelineBlocked = true;
+
+    expect(bound()).toEqual('pipelineBlocked');
+
+    context.hasMergeableDiscussionsState = true;
+
+    expect(bound()).toEqual('unresolvedDiscussions');
+
+    context.onlyAllowMergeIfPipelineSucceeds = true;
+    context.isPipelineFailed = true;
+
+    expect(bound()).toEqual('pipelineFailed');
+
+    data.work_in_progress = true;
+
+    expect(bound()).toEqual('workInProgress');
+
+    data.has_conflicts = true;
+
+    expect(bound()).toEqual('conflicts');
+
+    context.mergeStatus = 'unchecked';
+
+    expect(bound()).toEqual('checking');
+
+    data.commits_count = 0;
+
+    expect(bound()).toEqual('nothingToMerge');
+
+    data.branch_missing = true;
+
+    expect(bound()).toEqual('missingBranch');
+
+    data.project_archived = true;
+
+    expect(bound()).toEqual('archived');
+  });
+
+  it('returns rebased state key', () => {
+    const context = {
+      mergeStatus: 'checked',
+      mergeWhenPipelineSucceeds: false,
+      canMerge: true,
+      onlyAllowMergeIfPipelineSucceeds: true,
+      isPipelineFailed: true,
+      hasMergeableDiscussionsState: false,
+      isPipelineBlocked: false,
+      canBeMerged: false,
+      shouldBeRebased: true,
+    };
+    const data = {
+      project_archived: false,
+      branch_missing: false,
+      commits_count: 2,
+      has_conflicts: false,
+      work_in_progress: false,
+    };
+    const bound = getStateKey.bind(context, data);
+
+    expect(bound()).toEqual('rebase');
+  });
+});