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fix(echotest): trim single newline input #3162

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fix(echotest): trim single newline input #3162

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2 changes: 1 addition & 1 deletion echotest/reader.go
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ type loadBytesOpts func([]byte) []byte
// TrimNewlineEnd instructs LoadBytes to remove `\n` from the end of loaded file.
func TrimNewlineEnd(bytes []byte) []byte {
bLen := len(bytes)
if bLen > 1 && bytes[bLen-1] == '\n' {
if bLen > 0 && bytes[bLen-1] == '\n' {
bytes = bytes[:bLen-1]
}
return bytes
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4 changes: 4 additions & 0 deletions echotest/reader_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -19,3 +19,7 @@ func TestLoadBytesOK_TrimNewlineEnd(t *testing.T) {
data := LoadBytes(t, "testdata/test.json", TrimNewlineEnd)
assert.Equal(t, []byte(testJSONContent), data)
}

func TestTrimNewlineEnd(t *testing.T) {
assert.Empty(t, TrimNewlineEnd([]byte("\n")))
}