vttablet: benchmarks and two small optimizations

go/vt/vttablet/endtoend/framework/testcase.go

@@ -32,6 +32,7 @@ import (
 // a test case.
 type Testable interface {
 	Test(name string, client *QueryClient) error
+	Benchmark(client *QueryClient) error
 }
 
 var (
@@ -59,6 +60,12 @@ func (tq TestQuery) Test(name string, client *QueryClient) error {
 	return nil
 }
 
+// Benchmark executes the query and discards the results
+func (tq TestQuery) Benchmark(client *QueryClient) error {
+	_, err := exec(client, string(tq), nil)
+	return err
+}
+
 // TestCase represents one test case. It will execute the
 // query and verify its results and effects against what
 // must be expected. Expected fields are optional.
@@ -100,6 +107,12 @@ type TestCase struct {
 	Invalidations interface{}
 }
 
+// Benchmark executes the test case and discards the results without verifying them
+func (tc *TestCase) Benchmark(client *QueryClient) error {
+	_, err := exec(client, tc.Query, tc.BindVars)
+	return err
+}
+
 // Test executes the test case and returns an error if it failed.
 // The name parameter is used if the test case doesn't have a name.
 func (tc *TestCase) Test(name string, client *QueryClient) error {
@@ -221,3 +234,15 @@ func (mc *MultiCase) Test(name string, client *QueryClient) error {
 	}
 	return nil
 }
+
+// Benchmark executes the test cases in MultiCase and discards the
+// results without validating them.
+func (mc *MultiCase) Benchmark(client *QueryClient) error {
+	for _, tcase := range mc.Cases {
+		if err := tcase.Benchmark(client); err != nil {
+			client.Rollback()
+			return err
+		}
+	}
+	return nil
+}