Extract ResolveWithIssueButton from NoteableDiscussion component

app/assets/javascripts/notes/components/discussion_resolve_with_issue_button.vue

+<script>
+import Icon from '~/vue_shared/components/icon.vue';
+import { GlTooltipDirective, GlButton } from '@gitlab/ui';
+
+export default {
+  name: 'ResolveWithIssueButton',
+  components: {
+    Icon,
+    GlButton,
+  },
+  directives: {
+    GlTooltip: GlTooltipDirective,
+  },
+  props: {
+    url: {
+      type: String,
+      required: true,
+    },
+  },
+};
+</script>
+
+<template>
+  <div class="btn-group" role="group">
+    <gl-button
+      v-gl-tooltip
+      :href="url"
+      :title="s__('MergeRequests|Resolve this discussion in a new issue')"
+      class="new-issue-for-discussion discussion-create-issue-btn"
+    >
+      <icon name="issue-new" />
+    </gl-button>
+  </div>
+</template>

app/assets/javascripts/notes/components/noteable_discussion.vue

@@ -25,6 +25,7 @@ import noteable from '../mixins/noteable';
 import resolvable from '../mixins/resolvable';
 import discussionNavigation from '../mixins/discussion_navigation';
 import ReplyPlaceholder from './discussion_reply_placeholder.vue';
+import ResolveWithIssueButton from './discussion_resolve_with_issue_button.vue';
 import jumpToNextDiscussionButton from './discussion_jump_to_next_button.vue';
 import eventHub from '../event_hub';
 
@@ -44,6 +45,7 @@ export default {
     ReplyPlaceholder,
     placeholderNote,
     placeholderSystemNote,
+    ResolveWithIssueButton,
     systemNote,
     TimelineEntryItem,
   },
@@ -234,6 +236,9 @@ export default {
         url: this.discussion.discussion_path,
       };
     },
+    resolveWithIssuePath() {
+      return !this.discussionResolved && this.discussion.resolve_with_issue_path;
+    },
   },
   watch: {
     isReplying() {
@@ -487,16 +492,10 @@ Please check your network connection and try again.`;
                       class="btn-group discussion-actions ml-sm-2"
                       role="group"
                     >
-                      <div v-if="!discussionResolved" class="btn-group" role="group">
-                        <a
-                          v-gl-tooltip
-                          :href="discussion.resolve_with_issue_path"
-                          :title="s__('MergeRequests|Resolve this discussion in a new issue')"
-                          class="new-issue-for-discussion btn btn-default discussion-create-issue-btn"
-                        >
-                          <icon name="issue-new" />
-                        </a>
-                      </div>
+                      <resolve-with-issue-button
+                        v-if="resolveWithIssuePath"
+                        :url="resolveWithIssuePath"
+                      />
                       <jump-to-next-discussion-button
                         v-if="shouldShowJumpToNextDiscussion"
                         @onClick="jumpToNextDiscussion"

changelogs/unreleased/refactor-56367-extract-resolve-with-issue-button-component.yml

+---
+title: Extracted ResolveWithIssueButton to its own component
+merge_request: 25093
+author: Martin Hobert
+type: other

spec/javascripts/notes/components/discussion_resolve_with_issue_button_spec.js

+import { GlButton } from '@gitlab/ui';
+import ResolveWithIssueButton from '~/notes/components/discussion_resolve_with_issue_button.vue';
+import { shallowMount, createLocalVue } from '@vue/test-utils';
+import { TEST_HOST } from 'spec/test_constants';
+
+const localVue = createLocalVue();
+
+describe('ResolveWithIssueButton', () => {
+  let wrapper;
+  const url = `${TEST_HOST}/hello-world/`;
+
+  beforeEach(() => {
+    wrapper = shallowMount(ResolveWithIssueButton, {
+      localVue,
+      sync: false,
+      propsData: {
+        url,
+      },
+    });
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  it('it should have a link with the provided link property as href', () => {
+    const button = wrapper.find(GlButton);
+
+    expect(button.attributes().href).toBe(url);
+  });
+});

spec/javascripts/notes/components/noteable_discussion_spec.js

@@ -2,6 +2,7 @@ import { shallowMount, createLocalVue } from '@vue/test-utils';
 import createStore from '~/notes/stores';
 import noteableDiscussion from '~/notes/components/noteable_discussion.vue';
 import ReplyPlaceholder from '~/notes/components/discussion_reply_placeholder.vue';
+import ResolveWithIssueButton from '~/notes/components/discussion_resolve_with_issue_button.vue';
 import '~/behaviors/markdown/render_gfm';
 import { noteableDataMock, discussionMock, notesDataMock } from '../mock_data';
 import mockDiffFile from '../../diffs/mock_data/diff_file';
@@ -238,4 +239,42 @@ describe('noteable_discussion component', () => {
       });
     });
   });
+
+  describe('for resolved discussion', () => {
+    beforeEach(() => {
+      const discussion = getJSONFixture(discussionWithTwoUnresolvedNotes)[0];
+      wrapper.setProps({ discussion });
+    });
+
+    it('does not display a button to resolve with issue', () => {
+      const button = wrapper.find(ResolveWithIssueButton);
+
+      expect(button.exists()).toBe(false);
+    });
+  });
+
+  describe('for unresolved discussion', () => {
+    beforeEach(done => {
+      const discussion = {
+        ...getJSONFixture(discussionWithTwoUnresolvedNotes)[0],
+        expanded: true,
+      };
+      discussion.notes = discussion.notes.map(note => ({
+        ...note,
+        resolved: false,
+      }));
+
+      wrapper.setProps({ discussion });
+      wrapper.vm
+        .$nextTick()
+        .then(done)
+        .catch(done.fail);
+    });
+
+    it('displays a button to resolve with issue', () => {
+      const button = wrapper.find(ResolveWithIssueButton);
+
+      expect(button.exists()).toBe(true);
+    });
+  });
 });