feat: wasm support opa (Open Policy Agent) (#760)

plugins/wasm-go/extensions/opa/config_test.go

@@ -0,0 +1,50 @@
+// 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 main
+
+import (
+	"testing"
+
+	"github.com/alibaba/higress/plugins/wasm-go/pkg/wrapper"
+	"github.com/stretchr/testify/assert"
+	"github.com/tidwall/gjson"
+)
+
+func TestConfig(t *testing.T) {
+	json := gjson.Result{Type: gjson.JSON, Raw: `{"serviceSource": "k8s","serviceName": "opa","servicePort": 8181,"namespace": "example1","policy": "example1","timeout": "5s"}`}
+	config := &OpaConfig{}
+	assert.NoError(t, parseConfig(json, config, wrapper.Log{}))
+	assert.Equal(t, config.policy, "example1")
+	assert.Equal(t, config.timeout, uint32(5000))
+	assert.NotNil(t, config.client)
+
+	type tt struct {
+		raw    string
+		result bool
+	}
+
+	tests := []tt{
+		{raw: `{}`, result: false},
+		{raw: `{"policy": "example1","timeout": "5s"}`, result: false},
+		{raw: `{"serviceSource": "route","host": "example.com","policy": "example1","timeout": "5s"}`, result: true},
+		{raw: `{"serviceSource": "nacos","serviceName": "opa","servicePort": 8181,"policy": "example1","timeout": "5s"}`, result: false},
+		{raw: `{"serviceSource": "nacos","serviceName": "opa","servicePort": 8181,"namespace": "example1","policy": "example1","timeout": "5s"}`, result: true},
+	}
+
+	for _, test := range tests {
+		json = gjson.Result{Type: gjson.JSON, Raw: test.raw}
+		assert.Equal(t, parseConfig(json, config, wrapper.Log{}) == nil, test.result)
+	}
+}