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Copy pathio_test.go
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145 lines (116 loc) · 3.22 KB
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package main
import (
"bytes"
"io"
"testing"
"github.com/tdewolff/test"
)
func testOpener(filename string) (io.ReadCloser, error) {
if filename == "err" {
return nil, test.ErrPlain
} else if filename == "empty" {
return io.NopCloser(test.NewEmptyReader()), nil
}
return io.NopCloser(bytes.NewReader([]byte(filename))), nil
}
func TestConcat(t *testing.T) {
r, err := newConcatFileReader([]string{"test", "test"}, testOpener, nil)
test.T(t, err, nil)
buf, err := io.ReadAll(r)
test.T(t, err, nil)
test.Bytes(t, buf, []byte("testtest"))
n, err := r.Read(buf)
test.T(t, n, 0)
test.T(t, err, io.EOF)
}
func TestConcatErr(t *testing.T) {
_, err := newConcatFileReader([]string{"err"}, testOpener, nil)
test.T(t, err, test.ErrPlain)
r, err := newConcatFileReader([]string{"test", "err"}, testOpener, nil)
test.T(t, err, nil)
buf := make([]byte, 10)
n, err := r.Read(buf)
test.T(t, n, 4)
test.T(t, err, nil)
test.Bytes(t, buf[:n], []byte("test"))
n, err = r.Read(buf)
test.T(t, n, 0)
test.T(t, err, test.ErrPlain)
}
func TestConcatSep(t *testing.T) {
r, err := newConcatFileReader([]string{"test", "test"}, testOpener, []byte("_"))
test.T(t, err, nil)
buf := make([]byte, 10)
n, err := r.Read(buf)
test.T(t, n, 4)
test.T(t, err, nil)
test.Bytes(t, buf[:n], []byte("test"))
n, err = r.Read(buf[n:])
test.T(t, n, 5)
test.T(t, err, nil)
test.Bytes(t, buf[:4+n], []byte("test_test"))
}
func TestConcatSepShort1(t *testing.T) {
r, err := newConcatFileReader([]string{"test", "test"}, testOpener, []byte("_"))
test.T(t, err, nil)
// insufficient room for separator
buf := make([]byte, 4)
n, err := r.Read(buf)
test.T(t, n, 4)
test.T(t, err, nil)
test.Bytes(t, buf, []byte("test"))
n, err = r.Read(buf[4:])
test.T(t, n, 0)
test.T(t, err, nil)
}
func TestConcatSepShort2(t *testing.T) {
r, err := newConcatFileReader([]string{"test", "test"}, testOpener, []byte("_"))
test.T(t, err, nil)
// insufficient room after separator
buf := make([]byte, 5)
_, _ = r.Read(buf)
n, err := r.Read(buf[4:])
test.T(t, n, 1)
test.T(t, err, nil)
test.Bytes(t, buf, []byte("test_"))
}
func TestConcatSepShort3(t *testing.T) {
r, err := newConcatFileReader([]string{"test", "test"}, testOpener, []byte("_"))
test.T(t, err, nil)
// insufficient room after separator
buf := make([]byte, 6)
_, _ = r.Read(buf)
n, err := r.Read(buf[4:])
test.T(t, n, 2)
test.T(t, err, nil)
test.Bytes(t, buf, []byte("test_t"))
}
func TestConcatSepShort4(t *testing.T) {
r, err := newConcatFileReader([]string{"test", "test"}, testOpener, []byte("xx"))
test.T(t, err, nil)
// insufficient room after separator
buf := make([]byte, 5)
_, _ = r.Read(buf)
n, err := r.Read(buf[4:])
test.T(t, n, 1)
test.T(t, err, nil)
test.Bytes(t, buf, []byte("testx"))
n, err = r.Read(buf[5:])
test.T(t, n, 0)
test.T(t, err, nil)
buf2 := make([]byte, 5)
n, err = r.Read(buf2)
test.T(t, n, 5)
test.T(t, err, nil)
test.Bytes(t, buf2, []byte("xtest"))
}
func TestConcatSepEmpty(t *testing.T) {
r, err := newConcatFileReader([]string{"empty", "empty"}, testOpener, []byte("_"))
test.T(t, err, nil)
// insufficient room after separator
buf := make([]byte, 1)
n, err := r.Read(buf)
test.T(t, n, 1)
test.T(t, err, io.EOF)
test.Bytes(t, buf, []byte("_"))
}