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23 lines
469 B
Go
23 lines
469 B
Go
// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package iotest_test
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import (
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"errors"
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"fmt"
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"testing/iotest"
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)
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func ExampleErrReader() {
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// A reader that always returns a custom error.
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r := iotest.ErrReader(errors.New("custom error"))
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n, err := r.Read(nil)
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fmt.Printf("n: %d\nerr: %q\n", n, err)
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// Output:
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// n: 0
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// err: "custom error"
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}
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