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- // Copyright 2016 Google LLC
- //
- // 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 optional
-
- import "testing"
-
- func TestConvertSuccess(t *testing.T) {
- if got, want := ToBool(false), false; got != want {
- t.Errorf("got %v, want %v", got, want)
- }
- if got, want := ToString(""), ""; got != want {
- t.Errorf("got %v, want %v", got, want)
- }
- if got, want := ToInt(0), 0; got != want {
- t.Errorf("got %v, want %v", got, want)
- }
- if got, want := ToUint(uint(0)), uint(0); got != want {
- t.Errorf("got %v, want %v", got, want)
- }
- if got, want := ToFloat64(0.0), 0.0; got != want {
- t.Errorf("got %v, want %v", got, want)
- }
- }
-
- func TestConvertFailure(t *testing.T) {
- for _, f := range []func(){
- func() { ToBool(nil) },
- func() { ToBool(3) },
- func() { ToString(nil) },
- func() { ToString(3) },
- func() { ToInt(nil) },
- func() { ToInt("") },
- func() { ToUint(nil) },
- func() { ToUint("") },
- func() { ToFloat64(nil) },
- func() { ToFloat64("") },
- } {
- if !panics(f) {
- t.Error("got no panic, want panic")
- }
- }
- }
-
- func panics(f func()) (b bool) {
- defer func() {
- if recover() != nil {
- b = true
- }
- }()
- f()
- return false
- }
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