diff --git a/config/metrics/counts_28d/20210216184559_ci_templates_total_unique_counts_monthly.yml b/config/metrics/counts_28d/20210216184559_ci_templates_total_unique_counts_monthly.yml
index 1847eaf86a76cdd09383ee9cdcf7327549b94b41..35a727f09dc76f15d6d3866d348680c0582a19e2 100755
--- a/config/metrics/counts_28d/20210216184559_ci_templates_total_unique_counts_monthly.yml
+++ b/config/metrics/counts_28d/20210216184559_ci_templates_total_unique_counts_monthly.yml
@@ -181,6 +181,7 @@ options:
- p_ci_templates_terraform_module_base
- p_ci_templates_terraform_module
- p_ci_templates_pages_zola
+ - p_ci_templates_diffblue_cover
distribution:
- ce
- ee
diff --git a/config/metrics/counts_28d/20231116002424_p_ci_templates_diffblue_cover_monthly.yml b/config/metrics/counts_28d/20231116002424_p_ci_templates_diffblue_cover_monthly.yml
new file mode 100644
index 0000000000000000000000000000000000000000..521ae02f6c418d4b2b968c2c0adac5b26e852120
--- /dev/null
+++ b/config/metrics/counts_28d/20231116002424_p_ci_templates_diffblue_cover_monthly.yml
@@ -0,0 +1,24 @@
+---
+key_path: redis_hll_counters.ci_templates.p_ci_templates_diffblue_cover_monthly
+description: Count of pipelines using the Diffblue Cover template
+product_section: ci
+product_stage: pipeline_authoring
+product_group: pipeline_authoring
+value_type: number
+status: active
+milestone: "16.7"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/137047
+time_frame: 28d
+data_source: redis_hll
+data_category: optional
+instrumentation_class: RedisHLLMetric
+distribution:
+- ce
+- ee
+tier:
+- free
+- premium
+- ultimate
+options:
+ events:
+ - p_ci_templates_diffblue_cover
diff --git a/config/metrics/counts_7d/20210216184557_ci_templates_total_unique_counts_weekly.yml b/config/metrics/counts_7d/20210216184557_ci_templates_total_unique_counts_weekly.yml
index 3925f242efcede3ad0048aca0865bc742e208a4d..61fa197656bd048a57922248a2a57c0b323d107e 100755
--- a/config/metrics/counts_7d/20210216184557_ci_templates_total_unique_counts_weekly.yml
+++ b/config/metrics/counts_7d/20210216184557_ci_templates_total_unique_counts_weekly.yml
@@ -182,6 +182,7 @@ options:
- p_ci_templates_terraform_module_base
- p_ci_templates_terraform_module
- p_ci_templates_pages_zola
+ - p_ci_templates_diffblue_cover
distribution:
- ce
- ee
diff --git a/config/metrics/counts_7d/20231116002421_p_ci_templates_diffblue_cover_weekly.yml b/config/metrics/counts_7d/20231116002421_p_ci_templates_diffblue_cover_weekly.yml
new file mode 100644
index 0000000000000000000000000000000000000000..b9586f213a55ae01886c4ead892dc66930b9ee76
--- /dev/null
+++ b/config/metrics/counts_7d/20231116002421_p_ci_templates_diffblue_cover_weekly.yml
@@ -0,0 +1,24 @@
+---
+key_path: redis_hll_counters.ci_templates.p_ci_templates_diffblue_cover_weekly
+description: Count of pipelines using the Diffblue Cover template
+product_section: ci
+product_stage: pipeline_authoring
+product_group: pipeline_authoring
+value_type: number
+status: active
+milestone: "16.7"
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/137047
+time_frame: 7d
+data_source: redis_hll
+data_category: optional
+instrumentation_class: RedisHLLMetric
+distribution:
+- ce
+- ee
+tier:
+- free
+- premium
+- ultimate
+options:
+ events:
+ - p_ci_templates_diffblue_cover
diff --git a/lib/gitlab/ci/templates/Diffblue-Cover.gitlab-ci.yml b/lib/gitlab/ci/templates/Diffblue-Cover.gitlab-ci.yml
new file mode 100644
index 0000000000000000000000000000000000000000..c8b3aa1d705310f9da0b2c1c2aee14c3fb4e196c
--- /dev/null
+++ b/lib/gitlab/ci/templates/Diffblue-Cover.gitlab-ci.yml
@@ -0,0 +1,88 @@
+# This template is provided and maintained by Diffblue.
+# You can copy and paste this template into a new `.gitlab-ci.yml` file.
+# This template is designed to be used with the Cover Pipeline for GitLab integration from Diffblue.
+# It will download the latest version of Diffblue Cover, build the associated project, and
+# automatically write Java unit tests for the project.
+# Note that additional config is required:
+# https://docs.diffblue.com/features/cover-pipeline/cover-pipeline-for-gitlab
+# You should not add this template to an existing `.gitlab-ci.yml` file by using the `include:` keyword.
+#
+# To contribute improvements to CI/CD templates, please follow the Development guide at:
+# https://docs.gitlab.com/ee/development/cicd/templates.html
+# This specific template is located at:
+# https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Diffblue-Cover.gitlab-ci.yml
+
+variables:
+ # Configure the following via the Diffblue Cover integration config for your project, or by
+ # using CI/CD masked Variables.
+ # For details, see https://docs.diffblue.com/features/cover-pipeline/cover-pipeline-for-gitlab
+
+ # Diffblue Cover license key: DIFFBLUE_LICENSE_KEY
+ # Refer to your welcome email or you can obtain a free trial key from
+ # https://www.diffblue.com/try-cover/gitlab
+
+ # GitLab access token: DIFFBLUE_ACCESS_TOKEN, DIFFBLUE_ACCESS_TOKEN_NAME
+ # The access token should have a role of Developer or better and should have
+ # api and write_repository permissions.
+
+ # Diffblue Cover requires a minimum of 4GB of memory.
+ JVM_ARGS: -Xmx4g
+
+stages:
+ - build
+
+diffblue-cover:
+ stage: build
+
+ # Select the Cover CLI docker image to use with your CI tool.
+ # Tag variations are produced for each supported JDK version.
+ # Go to https://hub.docker.com/r/diffblue/cover-cli for details.
+ # Note: To use the latest version of Diffblue Cover, use one of the latest-jdk<nn> tags.
+ # To use a specific release version, use one of the yyyy.mm.dd-jdk<nn> tags.
+ image: diffblue/cover-cli:latest-jdk17
+
+ # Diffblue Cover currently only supports running on merge_request_events.
+ rules:
+ - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
+
+ # Diffblue Cover log files are saved to a .diffblue/ directory in the pipeline artifacts,
+ # and are available for download once the pipeline completes.
+ artifacts:
+ paths:
+ - "**/.diffblue/"
+
+ script:
+
+ # Diffblue Cover requires the project to be built before creating any tests.
+ # Either specify the build command here (one of the following), or provide
+ # prebuilt artifacts via a job dependency.
+
+ # Maven project example (comment out the Gradle version if used):
+ - mvn test-compile --batch-mode --no-transfer-progress
+
+ # Gradle project example (comment out the Maven version if used):
+ # - gradle testClasses
+
+ # Diffblue Cover commands and options to run.
+ # dcover – the core Diffblue Cover command
+ # ci – enable the GitLab CI/CD integration via environment variables
+ # activate - activate the license key
+ # validate - remove non-compiling and failing tests
+ # create - create new tests for your project
+ # --maven – use the maven build tool
+ # For detailed information on Cover CLI commands and options, see
+ # https://docs.diffblue.com/features/cover-cli/commands-and-arguments
+ - dcover
+ ci
+ activate
+ validate --maven
+ create --maven
+
+ # Diffblue Cover will also respond to specific project labels:
+ # Diffblue Cover: Baseline
+ # Used to mark a merge request as requiring a full suite of tests to be written.
+ # This overrides the default behaviour where Cover will only write tests related
+ # to the code changes already in the merge request. This is useful when running Diffblue
+ # Cover for the first time on a project and when new product enhancements are released.
+ # Diffblue Cover: Skip
+ # Used to mark a merge request as requiring no tests to be written.
diff --git a/spec/lib/gitlab/ci/templates/Diffblue_Cover_spec.rb b/spec/lib/gitlab/ci/templates/Diffblue_Cover_spec.rb
new file mode 100644
index 0000000000000000000000000000000000000000..c16356bfda752b701aea471e301fa0496e28c8fb
--- /dev/null
+++ b/spec/lib/gitlab/ci/templates/Diffblue_Cover_spec.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'Diffblue-Cover.gitlab-ci.yml', feature_category: :continuous_integration do
+ subject(:template) { Gitlab::Template::GitlabCiYmlTemplate.find('Diffblue-Cover') }
+
+ describe 'the created pipeline' do
+ let(:pipeline_branch) { 'patch-1' }
+ let_it_be(:project) { create(:project, :repository, create_branch: 'patch-1') }
+ let(:user) { project.first_owner }
+
+ let(:mr_service) { MergeRequests::CreatePipelineService.new(project: project, current_user: user) }
+ let(:merge_request) { create(:merge_request, :simple, source_project: project, source_branch: pipeline_branch) }
+ let(:mr_pipeline) { mr_service.execute(merge_request).payload }
+ let(:mr_build_names) { mr_pipeline.builds.pluck(:name) }
+
+ before do
+ stub_ci_pipeline_yaml_file(template.content)
+ end
+
+ it 'creates diffblue-cover jobs' do
+ expect(mr_build_names).to include('diffblue-cover')
+ end
+ end
+end
diff --git a/spec/lib/gitlab/ci/templates/templates_spec.rb b/spec/lib/gitlab/ci/templates/templates_spec.rb
index 36c6e805bdf43c3803d806f33df9292b96504144..98f0d32960b3f447b6f0940a1cf237c088586331 100644
--- a/spec/lib/gitlab/ci/templates/templates_spec.rb
+++ b/spec/lib/gitlab/ci/templates/templates_spec.rb
@@ -20,6 +20,7 @@
context 'that support autodevops' do
exceptions = [
+ 'Diffblue-Cover.gitlab-ci.yml', # no auto-devops
'Security/DAST.gitlab-ci.yml', # DAST stage is defined inside AutoDevops yml
'Security/DAST-API.gitlab-ci.yml', # no auto-devops
'Security/API-Fuzzing.gitlab-ci.yml', # no auto-devops