35 lines
889 B
Go
35 lines
889 B
Go
//go:build go1.13
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// +build go1.13
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package gin
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import (
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"errors"
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"fmt"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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type TestErr string
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func (e TestErr) Error() string { return string(e) }
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// TestErrorUnwrap tests the behavior of gin.Error with "errors.Is()" and "errors.As()".
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// "errors.Is()" and "errors.As()" have been added to the standard library in go 1.13,
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// hence the "// +build go1.13" directive at the beginning of this file.
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func TestErrorUnwrap(t *testing.T) {
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innerErr := TestErr("somme error")
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// 2 layers of wrapping : use 'fmt.Errorf("%w")' to wrap a gin.Error{}, which itself wraps innerErr
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err := fmt.Errorf("wrapped: %w", &Error{
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Err: innerErr,
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Type: ErrorTypeAny,
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})
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// check that 'errors.Is()' and 'errors.As()' behave as expected :
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assert.True(t, errors.Is(err, innerErr))
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var testErr TestErr
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assert.True(t, errors.As(err, &testErr))
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}
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