testdata: migrate tests away from Ginkgo (#4670)

internal/testdata/cert_test.go

@@ -3,29 +3,26 @@ package testdata
 import (
 	"crypto/tls"
 	"io"
+	"testing"
 
-	. "github.com/onsi/ginkgo/v2"
-	. "github.com/onsi/gomega"
+	"github.com/stretchr/testify/require"
 )
 
-var _ = Describe("certificates", func() {
-	It("returns certificates", func() {
+func TestCertificates(t *testing.T) {
 	ln, err := tls.Listen("tcp", "localhost:4433", GetTLSConfig())
-		Expect(err).ToNot(HaveOccurred())
+	require.NoError(t, err)
 
 	go func() {
-			defer GinkgoRecover()
 		conn, err := ln.Accept()
-			Expect(err).ToNot(HaveOccurred())
+		require.NoError(t, err)
 		defer conn.Close()
 		_, err = conn.Write([]byte("foobar"))
-			Expect(err).ToNot(HaveOccurred())
+		require.NoError(t, err)
 	}()
 
 	conn, err := tls.Dial("tcp", "localhost:4433", &tls.Config{RootCAs: GetRootCA()})
-		Expect(err).ToNot(HaveOccurred())
+	require.NoError(t, err)
 	data, err := io.ReadAll(conn)
-		Expect(err).ToNot(HaveOccurred())
-		Expect(string(data)).To(Equal("foobar"))
-	})
-})
+	require.NoError(t, err)
+	require.Equal(t, "foobar", string(data))
+}

internal/testdata/testdata_suite_test.go

@@ -1,13 +0,0 @@
-package testdata
-
-import (
-	"testing"
-
-	. "github.com/onsi/ginkgo/v2"
-	. "github.com/onsi/gomega"
-)
-
-func TestTestdata(t *testing.T) {
-	RegisterFailHandler(Fail)
-	RunSpecs(t, "Testdata Suite")
-}