proxy: fix checking error in TestDownstreamHeadersUpdate and TestUpstreamHeadersUpdate

Signed-off-by: Tw <tw19881113@gmail.com>

caddyhttp/proxy/proxy_test.go

@@ -13,6 +13,7 @@ import (
 	"net/url"
 	"os"
 	"path/filepath"
+	"reflect"
 	"runtime"
 	"strings"
 	"sync/atomic"
@@ -407,16 +408,19 @@ func TestUpstreamHeadersUpdate(t *testing.T) {
 	replacer := httpserver.NewReplacer(r, nil, "")
 
 	headerKey := "Merge-Me"
-	values, ok := actualHeaders[headerKey]
-	if !ok {
-		t.Errorf("Request sent to upstream backend does not contain expected %v header. Expected header to be added", headerKey)
-	} else if len(values) < 2 && (values[0] != "Initial" || values[1] != replacer.Replace("{hostname}")) {
-		t.Errorf("Values for proxy header `+Merge-Me` should be merged. Got %v", values)
+	got := actualHeaders[headerKey]
+	expect := []string{"Initial", "Merge-Value"}
+	if !reflect.DeepEqual(got, expect) {
+		t.Errorf("Request sent to upstream backend does not contain expected %v header: expect %v, but got %v",
+			headerKey, expect, got)
 	}
 
 	headerKey = "Add-Me"
-	if _, ok := actualHeaders[headerKey]; !ok {
-		t.Errorf("Request sent to upstream backend does not contain expected %v header", headerKey)
+	got = actualHeaders[headerKey]
+	expect = []string{"Add-Value"}
+	if !reflect.DeepEqual(got, expect) {
+		t.Errorf("Request sent to upstream backend does not contain expected %v header: expect %v, but got %v",
+			headerKey, expect, got)
 	}
 
 	headerKey = "Remove-Me"
@@ -425,12 +429,11 @@ func TestUpstreamHeadersUpdate(t *testing.T) {
 	}
 
 	headerKey = "Replace-Me"
-	headerValue := replacer.Replace("{hostname}")
-	value, ok := actualHeaders[headerKey]
-	if !ok {
-		t.Errorf("Request sent to upstream backend should not remove %v header", headerKey)
-	} else if len(value) > 0 && headerValue != value[0] {
-		t.Errorf("Request sent to upstream backend should replace value of %v header with %v. Instead value was %v", headerKey, headerValue, value)
+	got = actualHeaders[headerKey]
+	expect = []string{replacer.Replace("{hostname}")}
+	if !reflect.DeepEqual(got, expect) {
+		t.Errorf("Request sent to upstream backend does not contain expected %v header: expect %v, but got %v",
+			headerKey, expect, got)
 	}
 
 	if actualHost != expectHost {
@@ -477,16 +480,19 @@ func TestDownstreamHeadersUpdate(t *testing.T) {
 	actualHeaders := w.Header()
 
 	headerKey := "Merge-Me"
-	values, ok := actualHeaders[headerKey]
-	if !ok {
-		t.Errorf("Downstream response does not contain expected %v header. Expected header should be added", headerKey)
-	} else if len(values) < 2 && (values[0] != "Initial" || values[1] != replacer.Replace("{hostname}")) {
-		t.Errorf("Values for header `+Merge-Me` should be merged. Got %v", values)
+	got := actualHeaders[headerKey]
+	expect := []string{"Initial", "Merge-Value"}
+	if !reflect.DeepEqual(got, expect) {
+		t.Errorf("Downstream response does not contain expected %s header: expect %v, but got %v",
+			headerKey, expect, got)
 	}
 
 	headerKey = "Add-Me"
-	if _, ok := actualHeaders[headerKey]; !ok {
-		t.Errorf("Downstream response does not contain expected %v header", headerKey)
+	got = actualHeaders[headerKey]
+	expect = []string{"Add-Value"}
+	if !reflect.DeepEqual(got, expect) {
+		t.Errorf("Downstream response does not contain expected %s header: expect %v, but got %v",
+			headerKey, expect, got)
 	}
 
 	headerKey = "Remove-Me"
@@ -495,14 +501,12 @@ func TestDownstreamHeadersUpdate(t *testing.T) {
 	}
 
 	headerKey = "Replace-Me"
-	headerValue := replacer.Replace("{hostname}")
-	value, ok := actualHeaders[headerKey]
-	if !ok {
-		t.Errorf("Downstream response should contain %v header and not remove it", headerKey)
-	} else if len(value) > 0 && headerValue != value[0] {
-		t.Errorf("Downstream response should have header %v with value %v. Instead value was %v", headerKey, headerValue, value)
+	got = actualHeaders[headerKey]
+	expect = []string{replacer.Replace("{hostname}")}
+	if !reflect.DeepEqual(got, expect) {
+		t.Errorf("Downstream response does not contain expected %s header: expect %v, but got %v",
+			headerKey, expect, got)
 	}
-
 }
 
 var (