1 files changed, 70 insertions, 0 deletions
diff --git a/spec/lib/gitlab/database/query_analyzers/ci/partitioning_routing_analyzer_spec.rb b/spec/lib/gitlab/database/query_analyzers/ci/partitioning_routing_analyzer_spec.rb
new file mode 100644
index 00000000000..1f86c2ccbb0
--- /dev/null
+++ b/spec/lib/gitlab/database/query_analyzers/ci/partitioning_routing_analyzer_spec.rb
@@ -0,0 +1,70 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Database::QueryAnalyzers::Ci::PartitioningRoutingAnalyzer, query_analyzers: false do
+  let(:analyzer) { described_class }
+
+  before do
+    allow(Gitlab::Database::QueryAnalyzer.instance).to receive(:all_analyzers).and_return([analyzer])
+  end
+
+  context 'when ci_partitioning_analyze_queries is disabled' do
+    before do
+      stub_feature_flags(ci_partitioning_analyze_queries: false)
+    end
+
+    it 'does not analyze the query' do
+      expect(analyzer).not_to receive(:analyze)
+
+      process_sql(Ci::BuildMetadata, "SELECT 1 FROM ci_builds_metadata")
+    end
+  end
+
+  context 'when ci_partitioning_analyze_queries is enabled' do
+    context 'when analyzing targeted tables' do
+      described_class::ENABLED_TABLES.each do |enabled_table|
+        context 'when querying a non routing table' do
+          it 'tracks exception' do
+            expect(::Gitlab::ErrorTracking).to receive(:track_and_raise_for_dev_exception)
+            process_sql(Ci::ApplicationRecord, "SELECT 1 FROM #{enabled_table}")
+          end
+
+          it 'raises RoutingTableNotUsedError' do
+            expect { process_sql(Ci::ApplicationRecord, "SELECT 1 FROM #{enabled_table}") }
+              .to raise_error(described_class::RoutingTableNotUsedError)
+          end
+        end
+      end
+
+      context 'when updating a record' do
+        it 'raises RoutingTableNotUsedError' do
+          expect { process_sql(Ci::BuildMetadata, "UPDATE ci_builds_metadata SET id = 1") }
+            .to raise_error(described_class::RoutingTableNotUsedError)
+        end
+      end
+
+      context 'when inserting a record' do
+        it 'raises RoutingTableNotUsedError' do
+          expect { process_sql(Ci::BuildMetadata, "INSERT INTO ci_builds_metadata (id) VALUES(1)") }
+            .to raise_error(described_class::RoutingTableNotUsedError)
+        end
+      end
+    end
+
+    context 'when analyzing non targeted table' do
+      it 'does not raise error' do
+        expect { process_sql(Ci::BuildMetadata, "SELECT 1 FROM projects") }.not_to raise_error
+      end
+    end
+  end
+
+  private
+
+  def process_sql(model, sql)
+    Gitlab::Database::QueryAnalyzer.instance.within do
+      # Skip load balancer and retrieve connection assigned to model
+      Gitlab::Database::QueryAnalyzer.instance.send(:process_sql, sql, model.retrieve_connection)
+    end
+  end
+end