diff --git a/integration-tests/nghttpx_http1_test.go b/integration-tests/nghttpx_http1_test.go
index bb97a26b..5a5e2f8e 100644
--- a/integration-tests/nghttpx_http1_test.go
+++ b/integration-tests/nghttpx_http1_test.go
@@ -795,16 +795,16 @@ func TestH1H2RespPhaseReturn(t *testing.T) {
 	}
 }
 
-// TestH1APIBackendReplace exercise backendconfig API endpoint
-// routine for successful case.
-func TestH1APIBackendReplace(t *testing.T) {
+// TestH1APIBackendconfig exercise backendconfig API endpoint routine
+// for successful case.
+func TestH1APIBackendconfig(t *testing.T) {
 	st := newServerTesterConnectPort([]string{"-f127.0.0.1,3010;api;no-tls"}, t, func(w http.ResponseWriter, r *http.Request) {
 		t.Fatalf("request should not be forwarded")
 	}, 3010)
 	defer st.Close()
 
 	res, err := st.http1(requestParam{
-		name:   "TestH1APIBackendReplace",
+		name:   "TestH1APIBackendconfig",
 		path:   "/api/v1beta1/backendconfig",
 		method: "PUT",
 		body: []byte(`# comment
@@ -832,16 +832,16 @@ backend=127.0.0.1,3011
 	}
 }
 
-// TestH1APIBackendReplaceQuery exercise backendconfig API endpoint
+// TestH1APIBackendconfigQuery exercise backendconfig API endpoint
 // routine with query.
-func TestH1APIBackendReplaceQuery(t *testing.T) {
+func TestH1APIBackendconfigQuery(t *testing.T) {
 	st := newServerTesterConnectPort([]string{"-f127.0.0.1,3010;api;no-tls"}, t, func(w http.ResponseWriter, r *http.Request) {
 		t.Fatalf("request should not be forwarded")
 	}, 3010)
 	defer st.Close()
 
 	res, err := st.http1(requestParam{
-		name:   "TestH1APIBackendReplaceQuery",
+		name:   "TestH1APIBackendconfigQuery",
 		path:   "/api/v1beta1/backendconfig?foo=bar",
 		method: "PUT",
 		body: []byte(`# comment
@@ -869,16 +869,16 @@ backend=127.0.0.1,3011
 	}
 }
 
-// TestH1APIBackendReplaceBadMethod exercise backendconfig API
-// endpoint routine with bad method.
-func TestH1APIBackendReplaceBadMethod(t *testing.T) {
+// TestH1APIBackendconfigBadMethod exercise backendconfig API endpoint
+// routine with bad method.
+func TestH1APIBackendconfigBadMethod(t *testing.T) {
 	st := newServerTesterConnectPort([]string{"-f127.0.0.1,3010;api;no-tls"}, t, func(w http.ResponseWriter, r *http.Request) {
 		t.Fatalf("request should not be forwarded")
 	}, 3010)
 	defer st.Close()
 
 	res, err := st.http1(requestParam{
-		name:   "TestH1APIBackendReplaceBadMethod",
+		name:   "TestH1APIBackendconfigBadMethod",
 		path:   "/api/v1beta1/backendconfig",
 		method: "GET",
 		body: []byte(`# comment
diff --git a/integration-tests/nghttpx_http2_test.go b/integration-tests/nghttpx_http2_test.go
index 8367b8b9..307fa61e 100644
--- a/integration-tests/nghttpx_http2_test.go
+++ b/integration-tests/nghttpx_http2_test.go
@@ -1845,16 +1845,16 @@ func TestH2H2RespPhaseReturn(t *testing.T) {
 	}
 }
 
-// TestH2APIBackendReplace exercise backendconfig API endpoint
-// routine for successful case.
-func TestH2APIBackendReplace(t *testing.T) {
+// TestH2APIBackendconfig exercise backendconfig API endpoint routine
+// for successful case.
+func TestH2APIBackendconfig(t *testing.T) {
 	st := newServerTesterConnectPort([]string{"-f127.0.0.1,3010;api;no-tls"}, t, func(w http.ResponseWriter, r *http.Request) {
 		t.Fatalf("request should not be forwarded")
 	}, 3010)
 	defer st.Close()
 
 	res, err := st.http2(requestParam{
-		name:   "TestH2APIBackendReplace",
+		name:   "TestH2APIBackendconfig",
 		path:   "/api/v1beta1/backendconfig",
 		method: "PUT",
 		body: []byte(`# comment
@@ -1882,16 +1882,16 @@ backend=127.0.0.1,3011
 	}
 }
 
-// TestH2APIBackendReplaceQuery exercise backendconfig API endpoint
+// TestH2APIBackendconfigQuery exercise backendconfig API endpoint
 // routine with query.
-func TestH2APIBackendReplaceQuery(t *testing.T) {
+func TestH2APIBackendconfigQuery(t *testing.T) {
 	st := newServerTesterConnectPort([]string{"-f127.0.0.1,3010;api;no-tls"}, t, func(w http.ResponseWriter, r *http.Request) {
 		t.Fatalf("request should not be forwarded")
 	}, 3010)
 	defer st.Close()
 
 	res, err := st.http2(requestParam{
-		name:   "TestH2APIBackendReplaceQuery",
+		name:   "TestH2APIBackendconfigQuery",
 		path:   "/api/v1beta1/backendconfig?foo=bar",
 		method: "PUT",
 		body: []byte(`# comment
@@ -1919,16 +1919,16 @@ backend=127.0.0.1,3011
 	}
 }
 
-// TestH2APIBackendReplaceBadMethod exercise backendconfig API
-// endpoint routine with bad method.
-func TestH2APIBackendReplaceBadMethod(t *testing.T) {
+// TestH2APIBackendconfigBadMethod exercise backendconfig API endpoint
+// routine with bad method.
+func TestH2APIBackendconfigBadMethod(t *testing.T) {
 	st := newServerTesterConnectPort([]string{"-f127.0.0.1,3010;api;no-tls"}, t, func(w http.ResponseWriter, r *http.Request) {
 		t.Fatalf("request should not be forwarded")
 	}, 3010)
 	defer st.Close()
 
 	res, err := st.http2(requestParam{
-		name:   "TestH2APIBackendReplaceBadMethod",
+		name:   "TestH2APIBackendconfigBadMethod",
 		path:   "/api/v1beta1/backendconfig",
 		method: "GET",
 		body: []byte(`# comment
diff --git a/integration-tests/nghttpx_spdy_test.go b/integration-tests/nghttpx_spdy_test.go
index 96df0ddb..f2073cd4 100644
--- a/integration-tests/nghttpx_spdy_test.go
+++ b/integration-tests/nghttpx_spdy_test.go
@@ -476,16 +476,16 @@ func TestS3H2RespPhaseReturn(t *testing.T) {
 	}
 }
 
-// TestS3APIBackendReplace exercise backendconfig API endpoint
-// routine for successful case.
-func TestS3APIBackendReplace(t *testing.T) {
+// TestS3APIBackendconfig exercise backendconfig API endpoint routine
+// for successful case.
+func TestS3APIBackendconfig(t *testing.T) {
 	st := newServerTesterTLSConnectPort([]string{"--npn-list=spdy/3.1", "-f127.0.0.1,3010;api"}, t, func(w http.ResponseWriter, r *http.Request) {
 		t.Fatalf("request should not be forwarded")
 	}, 3010)
 	defer st.Close()
 
 	res, err := st.spdy(requestParam{
-		name:   "TestS3APIBackendReplace",
+		name:   "TestS3APIBackendconfig",
 		path:   "/api/v1beta1/backendconfig",
 		method: "PUT",
 		body: []byte(`# comment
@@ -513,16 +513,16 @@ backend=127.0.0.1,3011
 	}
 }
 
-// TestS3APIBackendReplaceQuery exercise backendconfig API endpoint
+// TestS3APIBackendconfigQuery exercise backendconfig API endpoint
 // routine with query.
-func TestS3APIBackendReplaceQuery(t *testing.T) {
+func TestS3APIBackendconfigQuery(t *testing.T) {
 	st := newServerTesterTLSConnectPort([]string{"--npn-list=spdy/3.1", "-f127.0.0.1,3010;api"}, t, func(w http.ResponseWriter, r *http.Request) {
 		t.Fatalf("request should not be forwarded")
 	}, 3010)
 	defer st.Close()
 
 	res, err := st.spdy(requestParam{
-		name:   "TestS3APIBackendReplaceQuery",
+		name:   "TestS3APIBackendconfigQuery",
 		path:   "/api/v1beta1/backendconfig?foo=bar",
 		method: "PUT",
 		body: []byte(`# comment
@@ -550,16 +550,16 @@ backend=127.0.0.1,3011
 	}
 }
 
-// TestS3APIBackendReplaceBadMethod exercise backendconfig API
-// endpoint routine with bad method.
-func TestS3APIBackendReplaceBadMethod(t *testing.T) {
+// TestS3APIBackendconfigBadMethod exercise backendconfig API endpoint
+// routine with bad method.
+func TestS3APIBackendconfigBadMethod(t *testing.T) {
 	st := newServerTesterTLSConnectPort([]string{"--npn-list=spdy/3.1", "-f127.0.0.1,3010;api"}, t, func(w http.ResponseWriter, r *http.Request) {
 		t.Fatalf("request should not be forwarded")
 	}, 3010)
 	defer st.Close()
 
 	res, err := st.spdy(requestParam{
-		name:   "TestS3APIBackendReplaceBadMethod",
+		name:   "TestS3APIBackendconfigBadMethod",
 		path:   "/api/v1beta1/backendconfig",
 		method: "GET",
 		body: []byte(`# comment