1 files changed, 137 insertions, 0 deletions
diff --git a/spec/lib/gitlab/ci/config/external/mapper/verifier_spec.rb b/spec/lib/gitlab/ci/config/external/mapper/verifier_spec.rb
new file mode 100644
index 00000000000..7c7252c6b0e
--- /dev/null
+++ b/spec/lib/gitlab/ci/config/external/mapper/verifier_spec.rb
@@ -0,0 +1,137 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Ci::Config::External::Mapper::Verifier, feature_category: :pipeline_authoring do
+  include RepoHelpers
+  include StubRequests
+
+  let_it_be(:project) { create(:project, :repository) }
+  let_it_be(:user) { project.owner }
+
+  let(:context) do
+    Gitlab::Ci::Config::External::Context.new(project: project, user: user, sha: project.commit.id)
+  end
+
+  let(:remote_url) { 'https://gitlab.com/gitlab-org/gitlab-foss/blob/1234/.gitlab-ci-1.yml' }
+
+  let(:project_files) do
+    {
+      'myfolder/file1.yml' => <<~YAML,
+        my_build:
+          script: echo Hello World
+      YAML
+      'myfolder/file2.yml' => <<~YAML,
+        my_test:
+          script: echo Hello World
+      YAML
+      'nested_configs.yml' => <<~YAML
+        include:
+          - local: myfolder/file1.yml
+          - local: myfolder/file2.yml
+          - remote: #{remote_url}
+      YAML
+    }
+  end
+
+  around(:all) do |example|
+    create_and_delete_files(project, project_files) do
+      example.run
+    end
+  end
+
+  before do
+    stub_full_request(remote_url).to_return(
+      body: <<~YAML
+      remote_test:
+        script: echo Hello World
+      YAML
+    )
+  end
+
+  subject(:verifier) { described_class.new(context) }
+
+  describe '#process' do
+    subject(:process) { verifier.process(files) }
+
+    context 'when files are local' do
+      let(:files) do
+        [
+          Gitlab::Ci::Config::External::File::Local.new({ local: 'myfolder/file1.yml' }, context),
+          Gitlab::Ci::Config::External::File::Local.new({ local: 'myfolder/file2.yml' }, context)
+        ]
+      end
+
+      it 'returns an array of file objects' do
+        expect(process.map(&:location)).to contain_exactly('myfolder/file1.yml', 'myfolder/file2.yml')
+      end
+
+      it 'adds files to the expandset' do
+        expect { process }.to change { context.expandset.count }.by(2)
+      end
+    end
+
+    context 'when a file includes other files' do
+      let(:files) do
+        [
+          Gitlab::Ci::Config::External::File::Local.new({ local: 'nested_configs.yml' }, context)
+        ]
+      end
+
+      it 'returns an array of file objects with combined hash' do
+        expect(process.map(&:to_hash)).to contain_exactly(
+          { my_build: { script: 'echo Hello World' },
+            my_test: { script: 'echo Hello World' },
+            remote_test: { script: 'echo Hello World' } }
+        )
+      end
+    end
+
+    context 'when there is an invalid file' do
+      let(:files) do
+        [
+          Gitlab::Ci::Config::External::File::Local.new({ local: 'myfolder/invalid.yml' }, context)
+        ]
+      end
+
+      it 'adds an error to the file' do
+        expect(process.first.errors).to include("Local file `myfolder/invalid.yml` does not exist!")
+      end
+    end
+
+    context 'when max_includes is exceeded' do
+      context 'when files are nested' do
+        let(:files) do
+          [
+            Gitlab::Ci::Config::External::File::Local.new({ local: 'nested_configs.yml' }, context)
+          ]
+        end
+
+        before do
+          allow(context).to receive(:max_includes).and_return(1)
+        end
+
+        it 'raises Processor::IncludeError' do
+          expect { process }.to raise_error(Gitlab::Ci::Config::External::Processor::IncludeError)
+        end
+      end
+
+      context 'when files are not nested' do
+        let(:files) do
+          [
+            Gitlab::Ci::Config::External::File::Local.new({ local: 'myfolder/file1.yml' }, context),
+            Gitlab::Ci::Config::External::File::Local.new({ local: 'myfolder/file2.yml' }, context)
+          ]
+        end
+
+        before do
+          allow(context).to receive(:max_includes).and_return(1)
+        end
+
+        it 'raises Mapper::TooManyIncludesError' do
+          expect { process }.to raise_error(Gitlab::Ci::Config::External::Mapper::TooManyIncludesError)
+        end
+      end
+    end
+  end
+end