Squashed commit of the following:

commit 04b06a2293fa12660a9c213a9db27fe90b83248b
Merge: d580841d4ed a445aa0a926
Author: Shinya Maeda <shinya@gitlab.com>
Date:   Mon Dec 3 10:51:55 2018 +0900

    Merge branch 'master-ce' into fix-mr-widget-unrelated-deployment-status

commit d580841d4ed944f01e6417fa77842826843b6a04
Author: Shinya Maeda <shinya@gitlab.com>
Date:   Fri Nov 30 18:11:04 2018 +0900

    Add environment to all_models.yml

commit 689fbe2699a3adf10804312e680fa336e4560eaf
Author: Shinya Maeda <shinya@gitlab.com>
Date:   Fri Nov 30 17:00:35 2018 +0900

    Proper way to get uniq relationship

commit c0733c6ecd535a6a1b6243080a2226836890f479
Author: Shinya Maeda <shinya@gitlab.com>
Date:   Fri Nov 30 16:20:40 2018 +0900

    Revert build change

commit 19dc55a8fe6e0fa575858d51144516b7fb0120de
Author: Shinya Maeda <shinya@gitlab.com>
Date:   Fri Nov 30 16:19:18 2018 +0900

    Add uniq option

commit 0a6995f311c09b453fd0aecff2f6052de38efc27
Author: Shinya Maeda <shinya@gitlab.com>
Date:   Fri Nov 30 16:14:30 2018 +0900

    Drop persisted_environment

commit 3f68fc783b0ee0d66e03de6d979616c4c4892118
Author: Shinya Maeda <shinya@gitlab.com>
Date:   Wed Nov 28 13:59:04 2018 +0900

    Return empty array if pipeline is nil

commit 73801c5c3d06339e38dce7461a71285bcdbb8f45
Author: Shinya Maeda <shinya@gitlab.com>
Date:   Tue Nov 27 16:34:47 2018 +0900

    Add changelog

commit d461699abf2835cc51949a5138e829628209dd6d
Author: Shinya Maeda <shinya@gitlab.com>
Date:   Tue Nov 27 16:32:20 2018 +0900

    Squashed commit of the following:

    commit 77ab5259605e217a39b04d2cea6204277e42d2b5
    Merge: 7ac1ed50612 2ee8c40fc16
    Author: Shinya Maeda <shinya@gitlab.com>
    Date:   Tue Nov 27 16:31:07 2018 +0900

        Merge branch 'master-ce' into fix-mr-widget-unrelated-deployment-status

    commit 7ac1ed50612620df6408220b0a7cfcb626a04c48
    Merge: 49ba5c5aeff b55aeca25e7
    Author: Shinya Maeda <shinya@gitlab.com>
    Date:   Mon Nov 26 20:01:43 2018 +0900

        Merge branch 'master-ce' into fix-mr-widget-unrelated-deployment-status

    commit 49ba5c5aeff3efee7b7498d443372021c3f4f8b5
    Merge: aa3fd0ff9e8 fbbe5ccd1be
    Author: Shinya Maeda <shinya@gitlab.com>
    Date:   Mon Nov 26 15:27:36 2018 +0900

        Merge branch 'master-ce' into fix-mr-widget-unrelated-deployment-status

    commit aa3fd0ff9e8a418a233ebaa60b38c081cab50099
    Author: Shinya Maeda <shinya@gitlab.com>
    Date:   Tue Nov 20 18:28:53 2018 +0900

        Fix static analysis

    commit 7afe5f37003869a73dbb297229f8533f78b82684
    Merge: e65b9580ff4 8a581d531ba
    Author: Shinya Maeda <shinya@gitlab.com>
    Date:   Tue Nov 20 18:27:33 2018 +0900

        Merge branch 'master-ce' into fix-mr-widget-unrelated-deployment-status

    commit e65b9580ff422359113e1a4e37c212f7b13aba4d
    Author: Shinya Maeda <shinya@gitlab.com>
    Date:   Mon Nov 19 17:59:48 2018 +0900

        Ignore deployments from project import/export

    commit 9eb4ddab8415c1ef61a3c646bdc4602bcf4ebe24
    Author: Shinya Maeda <shinya@gitlab.com>
    Date:   Mon Nov 19 16:26:00 2018 +0900

        Add memoization

    commit 57f0bea3aaaa07b75d18e52068c532277350cda0
    Author: Shinya Maeda <shinya@gitlab.com>
    Date:   Mon Nov 19 16:21:39 2018 +0900

        Fix unrelated deployment status in MR widget

1 files changed, 34 insertions, 5 deletions

diff --git a/spec/models/environment_status_spec.rb b/spec/models/environment_status_spec.rb
index 90f7e4a4590..9da16dea929 100644
--- a/spec/models/environment_status_spec.rb
+++ b/spec/models/environment_status_spec.rb
@@ -92,16 +92,12 @@ describe EnvironmentStatus do
   end
 
   describe '.build_environments_status' do
-    subject { described_class.send(:build_environments_status, merge_request, user, sha) }
+    subject { described_class.send(:build_environments_status, merge_request, user, pipeline) }
 
     let!(:build) { create(:ci_build, :deploy_to_production, pipeline: pipeline) }
     let(:environment) { build.deployment.environment }
     let(:user) { project.owner }
 
-    before do
-      build.deployment&.update!(sha: sha)
-    end
-
     context 'when environment is created on a forked project' do
       let(:project) { create(:project, :repository) }
       let(:forked) { fork_project(project, user, repository: true) }
@@ -160,6 +156,39 @@ describe EnvironmentStatus do
           expect(subject.count).to eq(0)
         end
       end
+
+      context 'when multiple deployments with the same SHA in different environments' do
+        let(:pipeline2) { create(:ci_pipeline, sha: sha, project: project) }
+        let!(:build2) { create(:ci_build, :start_review_app, pipeline: pipeline2) }
+
+        it 'returns deployments related to the head pipeline' do
+          expect(subject.count).to eq(1)
+          expect(subject[0].environment).to eq(environment)
+          expect(subject[0].merge_request).to eq(merge_request)
+          expect(subject[0].sha).to eq(sha)
+        end
+      end
+
+      context 'when multiple deployments in the same pipeline for the same environments' do
+        let!(:build2) { create(:ci_build, :deploy_to_production, pipeline: pipeline) }
+
+        it 'returns unique entries' do
+          expect(subject.count).to eq(1)
+          expect(subject[0].environment).to eq(environment)
+          expect(subject[0].merge_request).to eq(merge_request)
+          expect(subject[0].sha).to eq(sha)
+        end
+      end
+
+      context 'when environment is stopped' do
+        before do
+          environment.stop!
+        end
+
+        it 'does not return environment status' do
+          expect(subject.count).to eq(0)
+        end
+      end
     end
   end
 end