drone/git/parser/text_test.go

147 lines
3.8 KiB
Go

// Copyright 2023 Harness, 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 parser
import (
"bytes"
"testing"
"github.com/gotidy/ptr"
"github.com/stretchr/testify/assert"
)
func Test_readTextFileEmpty(t *testing.T) {
scanner, le, err := ReadTextFile(bytes.NewReader(nil), nil)
assert.NoError(t, err)
assert.Equal(t, "\n", le)
ok := scanner.Scan()
assert.False(t, ok)
assert.NoError(t, scanner.Err())
}
func Test_readTextFileFirstLineNotUTF8(t *testing.T) {
scanner, _, err := ReadTextFile(bytes.NewReader([]byte{0xFF, 0xFF}), nil)
// method itself doesn't return an error, only the scanning fails for utf8.
assert.NotNil(t, scanner)
assert.NoError(t, err)
ok := scanner.Scan()
assert.False(t, ok)
assert.ErrorIs(t, scanner.Err(), ErrBinaryFile)
}
func Test_readTextFileNoLineEnding(t *testing.T) {
scanner, le, err := ReadTextFile(bytes.NewReader([]byte("abc")), nil)
assert.NoError(t, err)
assert.Equal(t, "\n", le)
ok := scanner.Scan()
assert.True(t, ok)
assert.NoError(t, scanner.Err())
assert.Equal(t, "abc", scanner.Text())
ok = scanner.Scan()
assert.False(t, ok)
assert.NoError(t, scanner.Err())
assert.Nil(t, scanner.Bytes())
}
func Test_readTextFileLineEndingLF(t *testing.T) {
scanner, le, err := ReadTextFile(bytes.NewReader([]byte("abc\n")), nil)
assert.NoError(t, err)
assert.Equal(t, "\n", le)
ok := scanner.Scan()
assert.True(t, ok)
assert.NoError(t, scanner.Err())
assert.Equal(t, "abc\n", scanner.Text())
ok = scanner.Scan()
assert.False(t, ok)
assert.NoError(t, scanner.Err())
assert.Nil(t, scanner.Bytes())
}
func Test_readTextFileLineEndingCRLF(t *testing.T) {
scanner, le, err := ReadTextFile(bytes.NewReader([]byte("abc\r\n")), nil)
assert.NoError(t, err)
assert.Equal(t, "\r\n", le)
ok := scanner.Scan()
assert.True(t, ok)
assert.NoError(t, scanner.Err())
assert.Equal(t, "abc\r\n", scanner.Text())
ok = scanner.Scan()
assert.False(t, ok)
assert.NoError(t, scanner.Err())
assert.Nil(t, scanner.Bytes())
}
func Test_readTextFileLineEndingMultiple(t *testing.T) {
scanner, le, err := ReadTextFile(bytes.NewReader([]byte("abc\r\nd\n")), nil)
assert.NoError(t, err)
assert.Equal(t, "\r\n", le)
ok := scanner.Scan()
assert.True(t, ok)
assert.NoError(t, scanner.Err())
assert.Equal(t, "abc\r\n", scanner.Text())
ok = scanner.Scan()
assert.True(t, ok)
assert.NoError(t, scanner.Err())
assert.Equal(t, "d\n", scanner.Text())
ok = scanner.Scan()
assert.False(t, ok)
assert.NoError(t, scanner.Err())
assert.Nil(t, scanner.Bytes())
}
func Test_readTextFileLineEndingReplacementEmpty(t *testing.T) {
scanner, le, err := ReadTextFile(bytes.NewReader([]byte("abc\r\n")), ptr.Of(""))
assert.NoError(t, err)
assert.Equal(t, "\r\n", le)
ok := scanner.Scan()
assert.True(t, ok)
assert.NoError(t, scanner.Err())
assert.Equal(t, "abc", scanner.Text())
}
func Test_readTextFileLineEndingReplacement(t *testing.T) {
scanner, le, err := ReadTextFile(bytes.NewReader([]byte("abc\r\nd")), ptr.Of("\n"))
assert.NoError(t, err)
assert.Equal(t, "\r\n", le)
ok := scanner.Scan()
assert.True(t, ok)
assert.NoError(t, scanner.Err())
assert.Equal(t, "abc\n", scanner.Text())
ok = scanner.Scan()
assert.True(t, ok)
assert.NoError(t, scanner.Err())
assert.Equal(t, "d", scanner.Text())
ok = scanner.Scan()
assert.False(t, ok)
assert.NoError(t, scanner.Err())
assert.Nil(t, scanner.Bytes())
}