protocol/triple/triple_protocol/code_test.go

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 triple_protocol

import (
	"strconv"
	"strings"
	"testing"
)

import (
	"dubbo.apache.org/dubbo-go/v3/protocol/triple/triple_protocol/internal/assert"
)

func TestCode(t *testing.T) {
	t.Parallel()
	var valid []Code
	for code := minCode; code <= maxCode; code++ {
		valid = append(valid, code)
	}
	// Ensures that we don't forget to update the mapping in the Stringer
	// implementation.
	for _, code := range valid {
		assert.False(
			t,
			strings.HasPrefix(code.String(), "code_"),
			assert.Sprintf("update Code.String() method for new code %v", code),
		)
		assertCodeRoundTrips(t, code)
	}
	assertCodeRoundTrips(t, Code(999))
}

func assertCodeRoundTrips(tb testing.TB, code Code) {
	tb.Helper()
	encoded, err := code.MarshalText()
	assert.Nil(tb, err)
	var decoded Code
	assert.Nil(tb, decoded.UnmarshalText(encoded))
	assert.Equal(tb, decoded, code)
	if code >= minCode && code <= maxCode {
		var invalid Code
		// For the known codes, we only accept the canonical string representation: "canceled", not "code_1".
		assert.NotNil(tb, invalid.UnmarshalText([]byte("code_"+strconv.Itoa(int(code)))))
	}
}