1 files changed, 70 insertions, 0 deletions
diff --git a/spec/tooling/danger/clickhouse_spec.rb b/spec/tooling/danger/clickhouse_spec.rb
new file mode 100644
index 00000000000..ad2f0b4a827
--- /dev/null
+++ b/spec/tooling/danger/clickhouse_spec.rb
@@ -0,0 +1,70 @@
+# frozen_string_literal: true
+
+require 'rspec-parameterized'
+require 'gitlab-dangerfiles'
+require 'danger'
+require 'danger/plugins/internal/helper'
+require 'gitlab/dangerfiles/spec_helper'
+
+require_relative '../../../tooling/danger/clickhouse'
+
+RSpec.describe Tooling::Danger::Clickhouse, feature_category: :tooling do
+  include_context "with dangerfile"
+
+  let(:fake_danger) { DangerSpecHelper.fake_danger.include(described_class) }
+  let(:migration_files) do
+    %w[
+      db/click_house/20220901010203_add_widgets_table.rb
+      db/click_house/20220909010203_add_properties_column.rb
+      db/click_house/20220910010203_drop_tools_table.rb
+      db/click_house/20220912010203_add_index_to_widgets_table.rb
+    ]
+  end
+
+  subject(:clickhouse) { fake_danger.new(helper: fake_helper) }
+
+  describe '#changes' do
+    using RSpec::Parameterized::TableSyntax
+
+    where do
+      {
+        'with click_house gem changes' => {
+          modified_files: %w[gems/click_house-client/lib/click_house/client.rb],
+          changes_by_category: {
+            database: [],
+            clickhouse: %w[gems/click_house-client/lib/click_house/client.rb]
+          },
+          impacted_files: %w[gems/click_house-client/lib/click_house/client.rb]
+        },
+        'with clickhouse data changes' => {
+          modified_files: %w[db/clickhouse/20230720114001_add_magic_table_migration.rb],
+          changes_by_category: {
+            database: [],
+            clickhouse: %w[db/clickhouse/20230720114001_add_magic_table_migration.rb]
+          },
+          impacted_files: %w[db/clickhouse/20230720114001_add_magic_table_migration.rb]
+        },
+        'with clickhouse app changes' => {
+          modified_files: %w[lib/click_house/query_builder.rb],
+          changes_by_category: {
+            database: [],
+            clickhouse: %w[lib/click_house/query_builder.rb]
+          },
+          impacted_files: %w[lib/click_house/query_builder.rb]
+        }
+      }
+    end
+
+    with_them do
+      before do
+        allow(fake_helper).to receive(:modified_files).and_return(modified_files)
+        allow(fake_helper).to receive(:all_changed_files).and_return(modified_files)
+        allow(fake_helper).to receive(:changes_by_category).and_return(changes_by_category)
+      end
+
+      it 'returns only clickhouse changes' do
+        expect(clickhouse.changes).to match impacted_files
+      end
+    end
+  end
+end