Files
lazygit/pkg/utils/io_test.go
Stefan Haller 72cf3efb1d Add test demonstrating problem with ForEachLineInFile
The function drops the last line if it doesn't end with a line feed.
2024-10-09 15:36:02 +02:00

64 lines
1.4 KiB
Go

package utils
import (
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
func Test_forEachLineInStream(t *testing.T) {
scenarios := []struct {
name string
input string
expectedLines []string
}{
{
name: "empty input",
input: "",
expectedLines: []string{},
},
{
name: "single line",
input: "abc\n",
expectedLines: []string{"abc\n"},
},
{
name: "single line without line feed",
input: "abc",
/* EXPECTED:
expectedLines: []string{"abc"},
ACTUAL: */
expectedLines: []string{},
},
{
name: "multiple lines",
input: "abc\ndef\n",
expectedLines: []string{"abc\n", "def\n"},
},
{
name: "multiple lines including empty lines",
input: "abc\n\ndef\n",
expectedLines: []string{"abc\n", "\n", "def\n"},
},
{
name: "multiple lines without linefeed at end of file",
input: "abc\ndef\nghi",
/* EXPECTED:
expectedLines: []string{"abc\n", "def\n", "ghi"},
ACTUAL: */
expectedLines: []string{"abc\n", "def\n"},
},
}
for _, s := range scenarios {
t.Run(s.name, func(t *testing.T) {
lines := []string{}
forEachLineInStream(strings.NewReader(s.input), func(line string, i int) {
lines = append(lines, line)
})
assert.EqualValues(t, s.expectedLines, lines)
})
}
}