go.etcd.io/etcd@v3.3.27+incompatible/etcdctl/ctlv2/command/util_test.go (about)

     1  // Copyright 2015 The etcd Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package command
    16  
    17  import (
    18  	"bytes"
    19  	"testing"
    20  )
    21  
    22  func TestArgOrStdin(t *testing.T) {
    23  	tests := []struct {
    24  		args  []string
    25  		stdin string
    26  		i     int
    27  		w     string
    28  		we    error
    29  	}{
    30  		{
    31  			args: []string{
    32  				"a",
    33  			},
    34  			stdin: "b",
    35  			i:     0,
    36  			w:     "a",
    37  			we:    nil,
    38  		},
    39  		{
    40  			args: []string{
    41  				"a",
    42  			},
    43  			stdin: "b",
    44  			i:     1,
    45  			w:     "b",
    46  			we:    nil,
    47  		},
    48  		{
    49  			args: []string{
    50  				"a",
    51  			},
    52  			stdin: "",
    53  			i:     1,
    54  			w:     "",
    55  			we:    ErrNoAvailSrc,
    56  		},
    57  	}
    58  
    59  	for i, tt := range tests {
    60  		var b bytes.Buffer
    61  		b.Write([]byte(tt.stdin))
    62  		g, ge := argOrStdin(tt.args, &b, tt.i)
    63  		if g != tt.w {
    64  			t.Errorf("#%d: expect %v, not %v", i, tt.w, g)
    65  		}
    66  		if ge != tt.we {
    67  			t.Errorf("#%d: expect %v, not %v", i, tt.we, ge)
    68  		}
    69  	}
    70  }