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mc/cmd/cat_test.go
2022-12-05 08:32:04 -08:00

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// Copyright (c) 2015-2022 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"bytes"
"io"
"testing"
)
func TestPrettyStdout(t *testing.T) {
testCases := []struct {
originText string
prettyText string
}{
{"", ""},
{"text", "text"},
// Check with new lines
{"text\r\n", "text\r\n"},
{"\ttext\n", "\ttext\n"},
// Print some unicode characters and check if it is not altered
{"добро пожаловать.", "добро пожаловать."},
// Print colored text
{"\x1b\x5b\x33\x31\x6d\x66\x61\x69\x6c", "^?[31mfail"},
// Print clear screen
{"\x1b\x63", "^?c"},
// Random data
{"\x3d\xef\xd2\xb5", "=<3D>ҵ"},
}
for i, testCase := range testCases {
reader := bytes.NewReader([]byte(testCase.originText))
fakeStdout := bytes.NewBuffer([]byte(""))
n, err := io.Copy(newPrettyStdout(fakeStdout), reader)
if err != nil {
t.Fatalf("Test %d: %v\n", i+1, err)
}
if int(n) != len(testCase.originText) {
t.Fatalf("Test %d: copy error\n", i+1)
}
prettyText, err := io.ReadAll(fakeStdout)
if err != nil {
t.Fatalf("Test %d: %v", i+1, err)
}
if string(prettyText) != testCase.prettyText {
t.Fatalf("Test %d: expected output `%s`, found output `%s`", i+1, testCase.prettyText, string(prettyText))
}
}
}