github.com/m3db/m3@v1.5.0/src/x/resource/close_test.go (about)

     1  // Copyright (c) 2020 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  package resource
    21  
    22  import (
    23  	"errors"
    24  	"testing"
    25  
    26  	"github.com/stretchr/testify/require"
    27  )
    28  
    29  func TestTryClose(t *testing.T) {
    30  	tests := []struct {
    31  		input     interface{}
    32  		expectErr bool
    33  	}{
    34  		{
    35  			input:     &closer{returnErr: false},
    36  			expectErr: false,
    37  		},
    38  		{
    39  			input:     &closer{returnErr: true},
    40  			expectErr: true,
    41  		},
    42  		{
    43  			input:     &simpleCloser{},
    44  			expectErr: false,
    45  		},
    46  		{
    47  			input:     &nonCloser{},
    48  			expectErr: true,
    49  		},
    50  	}
    51  
    52  	for _, test := range tests {
    53  		err := TryClose(test.input)
    54  		if test.expectErr {
    55  			require.Error(t, err)
    56  			continue
    57  		}
    58  		require.NoError(t, err)
    59  	}
    60  }
    61  
    62  type closer struct {
    63  	returnErr bool
    64  }
    65  
    66  func (c *closer) Close() error {
    67  	if c.returnErr {
    68  		return errors.New("")
    69  	}
    70  	return nil
    71  }
    72  
    73  type simpleCloser struct{}
    74  
    75  func (c *simpleCloser) Close() {}
    76  
    77  type nonCloser struct{}