Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/github.com/googleapis/gnostic/generate-gnostic/generate-extension_test.go

@@ -0,0 +1,52 @@
+package main
+
+import (
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"testing"
+)
+
+func TestErrorExtensionGeneratorUnsupportedPrimitive(t *testing.T) {
+	var err error
+
+	output, err := exec.Command(
+		"generator",
+		"--extension",
+		"test/x-unsupportedprimitives.json",
+		"--out_dir=/tmp",
+	).Output()
+
+	outputFile := "x-unsupportedprimitives.errors"
+	_ = ioutil.WriteFile(outputFile, output, 0644)
+	err = exec.Command("diff", outputFile, "test/errors/x-unsupportedprimitives.errors").Run()
+	if err != nil {
+		t.Logf("Diff failed: %+v", err)
+		t.FailNow()
+	} else {
+		// if the test succeeded, clean up
+		os.Remove(outputFile)
+	}
+}
+
+func TestErrorExtensionGeneratorNameCollision(t *testing.T) {
+	var err error
+
+	output, err := exec.Command(
+		"generator",
+		"--extension",
+		"test/x-extension-name-collision.json",
+		"--out_dir=/tmp",
+	).Output()
+
+	outputFile := "x-extension-name-collision.errors"
+	_ = ioutil.WriteFile(outputFile, output, 0644)
+	err = exec.Command("diff", outputFile, "test/errors/x-extension-name-collision.errors").Run()
+	if err != nil {
+		t.Logf("Diff failed: %+v", err)
+		t.FailNow()
+	} else {
+		// if the test succeeded, clean up
+		os.Remove(outputFile)
+	}
+}