// Copyright 2020 PingCAP, Inc.
//
// 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 telemetry

import (
	"testing"

	"github.com/stretchr/testify/require"
)

func TestHashString(t *testing.T) {
	actual, err := hashString("127.0.0.1")
	require.NoError(t, err)
	require.Equal(t, "4b84b15bff6ee5796152495a230e45e3d7e947d9", actual)
}

func TestParseAddress(t *testing.T) {
	tests := []struct {
		src          string
		expectedHost string
		expectedPort string
	}{
		{"12345", "12345", ""},
		{"12345:567", "12345", "567"},
		{"store1", "store1", ""},
		{"0.0.0.0:4000", "0.0.0.0", "4000"},
		{"my_addr:12345", "my_addr", "12345"},
		{"my_addr:my_port", "my_addr:my_port", ""},
		{"my_addr:my_port:12345", "my_addr:my_port", "12345"},
		{"my_addr::12345", "my_addr:", "12345"},
		{"my_addr:12345x", "my_addr:12345x", ""},
		{"[2001:db8:85a3:8d3:1319:8a2e:370:7348]:443", "[2001:db8:85a3:8d3:1319:8a2e:370:7348]", "443"},
	}

	for _, test := range tests {
		// copy iterator variable into a new variable, see issue #27779
		test := test
		t.Run(test.src, func(t *testing.T) {
			host, port, err := parseAddressAndHash(test.src)
			require.NoError(t, err)

			expectedHost, err := hashString(test.expectedHost)
			require.NoError(t, err)

			require.Equal(t, expectedHost, host)
			require.Equal(t, test.expectedPort, port)
		})
	}
}