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// Copyright 2018 Google Inc. All Rights Reserved.
// This file is available under the Apache license.
// Reimport the go-cmp package as the name 'cmp' conflicts with the cmp
// instruction in the vm.
package testutil
import (
"testing"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
)
func Diff(a, b interface{}, opts ...cmp.Option) string {
return cmp.Diff(a, b, opts...)
}
func IgnoreUnexported(types ...interface{}) cmp.Option {
return cmpopts.IgnoreUnexported(types...)
}
func AllowUnexported(types ...interface{}) cmp.Option {
return cmp.AllowUnexported(types...)
}
func IgnoreFields(typ interface{}, names ...string) cmp.Option {
return cmpopts.IgnoreFields(typ, names...)
}
func SortSlices(lessFunc interface{}) cmp.Option {
return cmpopts.SortSlices(lessFunc)
}
// ExpectNoDiff tests to see if the two interfaces have no diff.
// If there is no diff, the retrun value is true.
// If there is a diff, it is logged to tb and an error is flagged, and the return value is false.
func ExpectNoDiff(tb testing.TB, a, b interface{}, opts ...cmp.Option) bool {
tb.Helper()
if diff := Diff(a, b, opts...); diff != "" {
tb.Errorf("Unexpected diff, -want +got:\n%s", diff)
return false
}
return true
}
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