diff --git a/app/controllers/projects/build_artifacts_controller.rb b/app/controllers/projects/build_artifacts_controller.rb
index 4274c356227..99f4524eec5 100644
--- a/app/controllers/projects/build_artifacts_controller.rb
+++ b/app/controllers/projects/build_artifacts_controller.rb
@@ -51,6 +51,6 @@ class Projects::BuildArtifactsController < Projects::ApplicationController
   def job_from_ref
     return unless @ref_name
 
-    project.latest_successful_build_for(params[:job], @ref_name)
+    project.latest_successful_build_for_ref(params[:job], @ref_name)
   end
 end
diff --git a/app/models/ci/pipeline.rb b/app/models/ci/pipeline.rb
index f70ff7e3192..08fd1f81ffc 100644
--- a/app/models/ci/pipeline.rb
+++ b/app/models/ci/pipeline.rb
@@ -229,6 +229,7 @@ module Ci
     #
     # ref - The name (or names) of the branch(es)/tag(s) to limit the list of
     #       pipelines to.
+    # sha - The commit SHA (or mutliple SHAs) to limit the list of pipelines to.
     # limit - This limits a backlog search, default to 100.
     def self.newest_first(ref: nil, sha: nil, limit: 100)
       relation = order(id: :desc)
@@ -249,7 +250,7 @@ module Ci
       newest_first(ref: ref).pluck(:status).first
     end
 
-    def self.latest_successful_for(ref)
+    def self.latest_successful_for_ref(ref)
       newest_first(ref: ref).success.take
     end
 
diff --git a/app/models/project.rb b/app/models/project.rb
index 9616e8c9748..dd0922a2fbf 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -720,16 +720,16 @@ class Project < ApplicationRecord
   end
 
   # ref can't be HEAD, can only be branch/tag name
-  def latest_successful_build_for(job_name, ref = default_branch)
+  def latest_successful_build_for_ref(job_name, ref = default_branch)
     return unless ref
 
-    latest_pipeline = ci_pipelines.latest_successful_for(ref)
+    latest_pipeline = ci_pipelines.latest_successful_for_ref(ref)
     return unless latest_pipeline
 
     latest_pipeline.builds.latest.with_artifacts_archive.find_by(name: job_name)
   end
 
-  def latest_successful_build_for_sha(job_name, sha = commit(default_branch).id)
+  def latest_successful_build_for_sha(job_name, sha)
     return unless sha
 
     latest_pipeline = ci_pipelines.latest_successful_for_sha(sha)
@@ -738,8 +738,8 @@ class Project < ApplicationRecord
     latest_pipeline.builds.latest.with_artifacts_archive.find_by(name: job_name)
   end
 
-  def latest_successful_build_for!(job_name, ref = default_branch)
-    latest_successful_build_for(job_name, ref) || raise(ActiveRecord::RecordNotFound.new("Couldn't find job #{job_name}"))
+  def latest_successful_build_for_ref!(job_name, ref = default_branch)
+    latest_successful_build_for_ref(job_name, ref) || raise(ActiveRecord::RecordNotFound.new("Couldn't find job #{job_name}"))
   end
 
   def merge_base_commit(first_commit_id, second_commit_id)
@@ -1514,12 +1514,12 @@ class Project < ApplicationRecord
     end
 
     @latest_successful_pipeline_for_default_branch =
-      ci_pipelines.latest_successful_for(default_branch)
+      ci_pipelines.latest_successful_for_ref(default_branch)
   end
 
   def latest_successful_pipeline_for(ref = nil)
     if ref && ref != default_branch
-      ci_pipelines.latest_successful_for(ref)
+      ci_pipelines.latest_successful_for_ref(ref)
     else
       latest_successful_pipeline_for_default_branch
     end
diff --git a/lib/api/job_artifacts.rb b/lib/api/job_artifacts.rb
index e7fed55170e..b35aa952f81 100644
--- a/lib/api/job_artifacts.rb
+++ b/lib/api/job_artifacts.rb
@@ -27,7 +27,7 @@ module API
         requirements: { ref_name: /.+/ } do
         authorize_download_artifacts!
 
-        latest_build = user_project.latest_successful_build_for!(params[:job], params[:ref_name])
+        latest_build = user_project.latest_successful_build_for_ref!(params[:job], params[:ref_name])
 
         present_carrierwave_file!(latest_build.artifacts_file)
       end
@@ -45,7 +45,7 @@ module API
           requirements: { ref_name: /.+/ } do
         authorize_download_artifacts!
 
-        build = user_project.latest_successful_build_for!(params[:job], params[:ref_name])
+        build = user_project.latest_successful_build_for_ref!(params[:job], params[:ref_name])
 
         path = Gitlab::Ci::Build::Artifacts::Path
                  .new(params[:artifact_path])
diff --git a/lib/gitlab/badge/coverage/report.rb b/lib/gitlab/badge/coverage/report.rb
index 7f7cc62c8ef..15cccc6f287 100644
--- a/lib/gitlab/badge/coverage/report.rb
+++ b/lib/gitlab/badge/coverage/report.rb
@@ -14,7 +14,7 @@ module Gitlab
           @ref = ref
           @job = job
 
-          @pipeline = @project.ci_pipelines.latest_successful_for(@ref)
+          @pipeline = @project.ci_pipelines.latest_successful_for_ref(@ref)
         end
 
         def entity
diff --git a/spec/models/ci/pipeline_spec.rb b/spec/models/ci/pipeline_spec.rb
index e3f699d9ad3..1fb83fbb088 100644
--- a/spec/models/ci/pipeline_spec.rb
+++ b/spec/models/ci/pipeline_spec.rb
@@ -1799,7 +1799,7 @@ describe Ci::Pipeline, :mailer do
     end
   end
 
-  describe '.latest_successful_for' do
+  describe '.latest_successful_for_ref' do
     include_context 'with some outdated pipelines'
 
     let!(:latest_successful_pipeline) do
@@ -1807,7 +1807,7 @@ describe Ci::Pipeline, :mailer do
     end
 
     it 'returns the latest successful pipeline' do
-      expect(described_class.latest_successful_for('ref'))
+      expect(described_class.latest_successful_for_ref('ref'))
         .to eq(latest_successful_pipeline)
     end
   end
diff --git a/spec/models/project_spec.rb b/spec/models/project_spec.rb
index e88c6a60fec..fc778174314 100644
--- a/spec/models/project_spec.rb
+++ b/spec/models/project_spec.rb
@@ -2019,7 +2019,7 @@ describe Project do
     end
   end
 
-  describe '#latest_successful_build_for' do
+  describe '#latest_successful_build_for_ref' do
     let(:project) { create(:project, :repository) }
     let(:pipeline) { create_pipeline(project) }
 
@@ -2032,7 +2032,7 @@ describe Project do
         build1_p2 = create_build(pipeline2, 'test')
         create_build(pipeline2, 'test2')
 
-        expect(project.latest_successful_build_for(build1_p2.name))
+        expect(project.latest_successful_build_for_ref(build1_p2.name))
           .to eq(build1_p2)
       end
     end
@@ -2042,12 +2042,12 @@ describe Project do
 
       context 'standalone pipeline' do
         it 'returns builds for ref for default_branch' do
-          expect(project.latest_successful_build_for(build.name))
+          expect(project.latest_successful_build_for_ref(build.name))
             .to eq(build)
         end
 
         it 'returns empty relation if the build cannot be found' do
-          expect(project.latest_successful_build_for('TAIL'))
+          expect(project.latest_successful_build_for_ref('TAIL'))
             .to be_nil
         end
       end
@@ -2058,7 +2058,7 @@ describe Project do
         end
 
         it 'gives the latest build from latest pipeline' do
-          expect(project.latest_successful_build_for(build.name))
+          expect(project.latest_successful_build_for_ref(build.name))
             .to eq(build)
         end
       end
@@ -2069,7 +2069,7 @@ describe Project do
         pipeline.update(status: 'pending')
         pending_build = create_build(pipeline)
 
-        expect(project.latest_successful_build_for(pending_build.name)).to be_nil
+        expect(project.latest_successful_build_for_ref(pending_build.name)).to be_nil
       end
     end
   end
@@ -2129,7 +2129,7 @@ describe Project do
     end
   end
 
-  describe '#latest_successful_build_for!' do
+  describe '#latest_successful_build_for_ref!' do
     let(:project) { create(:project, :repository) }
     let(:pipeline) { create_pipeline(project) }
 
@@ -2142,7 +2142,7 @@ describe Project do
         build1_p2 = create_build(pipeline2, 'test')
         create_build(pipeline2, 'test2')
 
-        expect(project.latest_successful_build_for(build1_p2.name))
+        expect(project.latest_successful_build_for_ref!(build1_p2.name))
           .to eq(build1_p2)
       end
     end
@@ -2152,12 +2152,12 @@ describe Project do
 
       context 'standalone pipeline' do
         it 'returns builds for ref for default_branch' do
-          expect(project.latest_successful_build_for!(build.name))
+          expect(project.latest_successful_build_for_ref!(build.name))
             .to eq(build)
         end
 
         it 'returns exception if the build cannot be found' do
-          expect { project.latest_successful_build_for!(build.name, 'TAIL') }
+          expect { project.latest_successful_build_for_ref!(build.name, 'TAIL') }
             .to raise_error(ActiveRecord::RecordNotFound)
         end
       end
@@ -2168,7 +2168,7 @@ describe Project do
         end
 
         it 'gives the latest build from latest pipeline' do
-          expect(project.latest_successful_build_for!(build.name))
+          expect(project.latest_successful_build_for_ref!(build.name))
             .to eq(build)
         end
       end
@@ -2179,7 +2179,7 @@ describe Project do
         pipeline.update(status: 'pending')
         pending_build = create_build(pipeline)
 
-        expect { project.latest_successful_build_for!(pending_build.name) }
+        expect { project.latest_successful_build_for_ref!(pending_build.name) }
           .to raise_error(ActiveRecord::RecordNotFound)
       end
     end
@@ -4091,7 +4091,7 @@ describe Project do
 
     context 'with a ref that is not the default branch' do
       it 'returns the latest successful pipeline for the given ref' do
-        expect(project.ci_pipelines).to receive(:latest_successful_for).with('foo')
+        expect(project.ci_pipelines).to receive(:latest_successful_for_ref).with('foo')
 
         project.latest_successful_pipeline_for('foo')
       end
@@ -4119,7 +4119,7 @@ describe Project do
     it 'memoizes and returns the latest successful pipeline for the default branch' do
       pipeline = double(:pipeline)
 
-      expect(project.ci_pipelines).to receive(:latest_successful_for)
+      expect(project.ci_pipelines).to receive(:latest_successful_for_ref)
         .with(project.default_branch)
         .and_return(pipeline)
         .once