vitess.io/vitess@v0.16.2/go/exit/exit_test.go (about)

     1  /*
     2  Copyright 2019 The Vitess Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreedto in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package exit
    18  
    19  import (
    20  	"testing"
    21  )
    22  
    23  type repanicType int
    24  
    25  func TestReturn(t *testing.T) {
    26  	defer func() {
    27  		err := recover()
    28  		if err == nil {
    29  			t.Errorf("Return() did not panic with exit code")
    30  		}
    31  
    32  		switch code := err.(type) {
    33  		case exitCode:
    34  			if code != 152 {
    35  				t.Errorf("got %v, want %v", code, 152)
    36  			}
    37  		default:
    38  			panic(err)
    39  		}
    40  	}()
    41  
    42  	Return(152)
    43  }
    44  
    45  func TestRecover(t *testing.T) {
    46  	var code int
    47  
    48  	exitFunc = func(c int) {
    49  		code = c
    50  	}
    51  
    52  	func() {
    53  		defer Recover()
    54  		Return(8235)
    55  	}()
    56  
    57  	if code != 8235 {
    58  		t.Errorf("got %v, want %v", code, 8235)
    59  	}
    60  }
    61  
    62  func TestRecoverRepanic(t *testing.T) {
    63  	defer func() {
    64  		err := recover()
    65  
    66  		if err == nil {
    67  			t.Errorf("Recover() didn't re-panic an error other than exitCode")
    68  			return
    69  		}
    70  
    71  		if _, ok := err.(repanicType); !ok {
    72  			panic(err) // something unexpected went wrong
    73  		}
    74  	}()
    75  
    76  	defer Recover()
    77  
    78  	panic(repanicType(1))
    79  }
    80  
    81  func TestRecoverAll(t *testing.T) {
    82  	exitFunc = func(int) {}
    83  
    84  	defer func() {
    85  		err := recover()
    86  
    87  		if err != nil {
    88  			t.Errorf("RecoverAll() didn't absorb all panics")
    89  		}
    90  	}()
    91  
    92  	defer RecoverAll()
    93  
    94  	panic(repanicType(1))
    95  }
    96  
    97  // TestRecoverNil checks that Recover() does nothing when there is no panic.
    98  func TestRecoverNil(t *testing.T) {
    99  	defer Recover()
   100  }