Move codes to pkg (#46)

pkg/ingress/kube/annotations/header_control_test.go

@@ -0,0 +1,235 @@
+// Copyright (c) 2022 Alibaba Group Holding Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package annotations
+
+import (
+	"reflect"
+	"testing"
+
+	networking "istio.io/api/networking/v1alpha3"
+)
+
+func TestHeaderControlParse(t *testing.T) {
+	headerControl := &headerControl{}
+	inputCases := []struct {
+		input  map[string]string
+		expect *HeaderControlConfig
+	}{
+		{},
+		{
+			input: map[string]string{
+				buildMSEAnnotationKey(requestHeaderAdd):  "one 1",
+				buildMSEAnnotationKey(responseHeaderAdd): "A a",
+			},
+			expect: &HeaderControlConfig{
+				Request: &HeaderOperation{
+					Add: map[string]string{
+						"one": "1",
+					},
+				},
+				Response: &HeaderOperation{
+					Add: map[string]string{
+						"A": "a",
+					},
+				},
+			},
+		},
+		{
+			input: map[string]string{
+				buildMSEAnnotationKey(requestHeaderAdd):     "one 1\n  two  2\nthree   3  \n",
+				buildMSEAnnotationKey(requestHeaderUpdate):  "two 2",
+				buildMSEAnnotationKey(requestHeaderRemove):  "one, two,three\n",
+				buildMSEAnnotationKey(responseHeaderAdd):    "A a\nB b\n",
+				buildMSEAnnotationKey(responseHeaderUpdate): "X x\nY y\n",
+				buildMSEAnnotationKey(responseHeaderRemove): "x",
+			},
+			expect: &HeaderControlConfig{
+				Request: &HeaderOperation{
+					Add: map[string]string{
+						"one":   "1",
+						"two":   "2",
+						"three": "3",
+					},
+					Update: map[string]string{
+						"two": "2",
+					},
+					Remove: []string{"one", "two", "three"},
+				},
+				Response: &HeaderOperation{
+					Add: map[string]string{
+						"A": "a",
+						"B": "b",
+					},
+					Update: map[string]string{
+						"X": "x",
+						"Y": "y",
+					},
+					Remove: []string{"x"},
+				},
+			},
+		},
+	}
+
+	for _, inputCase := range inputCases {
+		t.Run("", func(t *testing.T) {
+			config := &Ingress{}
+			_ = headerControl.Parse(inputCase.input, config, nil)
+			if !reflect.DeepEqual(inputCase.expect, config.HeaderControl) {
+				t.Fatal("Should be equal")
+			}
+		})
+	}
+}
+
+func TestHeaderControlApplyRoute(t *testing.T) {
+	headerControl := headerControl{}
+	inputCases := []struct {
+		config *Ingress
+		input  *networking.HTTPRoute
+		expect *networking.HTTPRoute
+	}{
+		{
+			config: &Ingress{},
+			input:  &networking.HTTPRoute{},
+			expect: &networking.HTTPRoute{},
+		},
+		{
+			config: &Ingress{
+				HeaderControl: &HeaderControlConfig{},
+			},
+			input: &networking.HTTPRoute{},
+			expect: &networking.HTTPRoute{
+				Headers: &networking.Headers{
+					Request:  &networking.Headers_HeaderOperations{},
+					Response: &networking.Headers_HeaderOperations{},
+				},
+			},
+		},
+		{
+			config: &Ingress{
+				HeaderControl: &HeaderControlConfig{
+					Request: &HeaderOperation{
+						Add: map[string]string{
+							"one":   "1",
+							"two":   "2",
+							"three": "3",
+						},
+						Update: map[string]string{
+							"two": "2",
+						},
+						Remove: []string{"one", "two", "three"},
+					},
+				},
+			},
+			input: &networking.HTTPRoute{},
+			expect: &networking.HTTPRoute{
+				Headers: &networking.Headers{
+					Request: &networking.Headers_HeaderOperations{
+						Add: map[string]string{
+							"one":   "1",
+							"two":   "2",
+							"three": "3",
+						},
+						Set: map[string]string{
+							"two": "2",
+						},
+						Remove: []string{"one", "two", "three"},
+					},
+					Response: &networking.Headers_HeaderOperations{},
+				},
+			},
+		},
+		{
+			config: &Ingress{
+				HeaderControl: &HeaderControlConfig{
+					Response: &HeaderOperation{
+						Add: map[string]string{
+							"A": "a",
+							"B": "b",
+						},
+						Update: map[string]string{
+							"X": "x",
+							"Y": "y",
+						},
+						Remove: []string{"x"},
+					},
+				},
+			},
+			input: &networking.HTTPRoute{},
+			expect: &networking.HTTPRoute{
+				Headers: &networking.Headers{
+					Request: &networking.Headers_HeaderOperations{},
+					Response: &networking.Headers_HeaderOperations{
+						Add: map[string]string{
+							"A": "a",
+							"B": "b",
+						},
+						Set: map[string]string{
+							"X": "x",
+							"Y": "y",
+						},
+						Remove: []string{"x"},
+					},
+				},
+			},
+		},
+		{
+			config: &Ingress{
+				HeaderControl: &HeaderControlConfig{
+					Request: &HeaderOperation{
+						Update: map[string]string{
+							"two": "2",
+						},
+						Remove: []string{"one", "two", "three"},
+					},
+					Response: &HeaderOperation{
+						Add: map[string]string{
+							"A": "a",
+							"B": "b",
+						},
+						Remove: []string{"x"},
+					},
+				},
+			},
+			input: &networking.HTTPRoute{},
+			expect: &networking.HTTPRoute{
+				Headers: &networking.Headers{
+					Request: &networking.Headers_HeaderOperations{
+						Set: map[string]string{
+							"two": "2",
+						},
+						Remove: []string{"one", "two", "three"},
+					},
+					Response: &networking.Headers_HeaderOperations{
+						Add: map[string]string{
+							"A": "a",
+							"B": "b",
+						},
+						Remove: []string{"x"},
+					},
+				},
+			},
+		},
+	}
+
+	for _, inputCase := range inputCases {
+		t.Run("", func(t *testing.T) {
+			headerControl.ApplyRoute(inputCase.input, inputCase.config)
+			if !reflect.DeepEqual(inputCase.input, inputCase.expect) {
+				t.Fatal("Should be equal")
+			}
+		})
+	}
+}