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f0cab0e285
According to https://github.com/golang/go/issues/5373, go recognizes (and optimizes for) the following syntax: ```go for i := range b { b[i] = 0 } ``` so let's use it. Limited testing shows ~7.5x speed increase, compared to the previously used syntax. Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
27 lines
642 B
Go
27 lines
642 B
Go
package testutil
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import (
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"io"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// ErrorContains checks that the error is not nil, and contains the expected
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// substring.
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func ErrorContains(t require.TestingT, err error, expectedError string, msgAndArgs ...interface{}) {
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require.Error(t, err, msgAndArgs...)
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assert.Contains(t, err.Error(), expectedError, msgAndArgs...)
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}
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// DevZero acts like /dev/zero but in an OS-independent fashion.
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var DevZero io.Reader = devZero{}
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type devZero struct{}
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func (d devZero) Read(p []byte) (n int, err error) {
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for i := range p {
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p[i] = 0
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}
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return len(p), nil
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}
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