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ceph-csi/internal/util/errors_test.go
Yati Padia 13667c013c cleanup: addresses paralleltest linter
The Go linter paralleltest checks that the t.Parallel
gets called for the test method and for the range of
test cases within the test.

Updates: 

Signed-off-by: Yati Padia <ypadia@redhat.com>
2021-06-25 11:55:12 +00:00

72 lines
1.9 KiB
Go

/*
Copyright 2020 ceph-csi authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package util
import (
"errors"
"fmt"
"testing"
)
var (
errFoo = errors.New("foo")
errBar = errors.New("bar")
)
func wrapError(e error) error {
return fmt.Errorf("w{%w}", e)
}
func TestJoinErrors(t *testing.T) {
t.Parallel()
assertErrorIs := func(e1, e2 error, ok bool) {
if errors.Is(e1, e2) != ok {
t.Errorf("errors.Is(e1, e2) != %v - e1: %#v - e2: %#v", ok, e1, e2)
}
}
assertErrorIs(errFoo, errBar, false)
assertErrorIs(errFoo, errFoo, true)
fooBar := JoinErrors(errFoo, errBar)
assertErrorIs(fooBar, errFoo, true)
assertErrorIs(fooBar, errBar, true)
w2Foo := wrapError(wrapError(errFoo))
w1Bar := wrapError(errBar)
w1w2Foow1Bar := wrapError(JoinErrors(w2Foo, w1Bar))
assertErrorIs(w1w2Foow1Bar, errFoo, true)
assertErrorIs(w1w2Foow1Bar, errBar, true)
w2X := wrapError(wrapError(errors.New("x")))
w2FooBar := wrapError(wrapError(fooBar))
w1w2Xw2FooBar := wrapError(JoinErrors(w2X, w2FooBar))
assertErrorIs(w1w2Xw2FooBar, errFoo, true)
assertErrorIs(w1w2Xw2FooBar, errBar, true)
x := errors.Unwrap(errors.Unwrap(errors.Unwrap(errors.Unwrap(w1w2Xw2FooBar))))
assertErrorIs(x, fooBar, true)
x = errors.Unwrap(x)
assertErrorIs(x, fooBar, false)
assertErrorIs(x, errFoo, false)
assertErrorIs(x, errBar, true)
s1 := "w{w{w{x}}: w{w{foo: bar}}}"
if s2 := w1w2Xw2FooBar.Error(); s1 != s2 {
t.Errorf("%s != %s", s1, s2)
}
}