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46 lines
1.3 KiB
46 lines
1.3 KiB
package testutils
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import (
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"io"
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"io/ioutil"
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"os"
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"strings"
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"testing"
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"github.com/pkg/errors"
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)
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// NewTempFile creates a new, empty temp file for testing. Errors are fatal.
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func NewTempFile(t *testing.T) *os.File {
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pattern := strings.ReplaceAll(t.Name(), string(os.PathSeparator), "_")
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f, err := ioutil.TempFile("", pattern)
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if err != nil {
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t.Fatal(errors.Wrap(err, "cannot create temp file"))
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}
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return f
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}
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// NewTempFileWithContents creates a new, empty temp file for testing,
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// with the given contents. The read/write offset is set to the beginning.
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// Errors are fatal.
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func NewTempFileWithContents(t *testing.T, contents []byte) *os.File {
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f := NewTempFile(t)
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if _, err := f.Write(contents); err != nil {
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t.Fatal(errors.Wrapf(err, "cannot write contents into %s", f.Name()))
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}
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if _, err := f.Seek(0, io.SeekStart); err != nil {
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t.Fatal(errors.Wrapf(err, "cannot rewind test file %s", f.Name()))
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}
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return f
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}
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// CloseAndRemoveTempFile closes/removes the temp file. Errors are logged.
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func CloseAndRemoveTempFile(t *testing.T, f *os.File) {
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fn := f.Name()
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if err := f.Close(); err != nil {
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t.Log(errors.Wrapf(err, "cannot close test file %s", fn))
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}
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if err := os.Remove(fn); err != nil {
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t.Log(errors.Wrapf(err, "cannot remove test file %s", fn))
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}
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}
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