github.com/tappoz/packer@v1.0.0-rc1/helper/config/decode_test.go (about)

     1  package config
     2  
     3  import (
     4  	"reflect"
     5  	"testing"
     6  	"time"
     7  
     8  	"github.com/mitchellh/packer/template/interpolate"
     9  )
    10  
    11  func TestDecode(t *testing.T) {
    12  	type Target struct {
    13  		Name    string
    14  		Address string
    15  		Time    time.Duration
    16  	}
    17  
    18  	cases := map[string]struct {
    19  		Input  []interface{}
    20  		Output *Target
    21  		Opts   *DecodeOpts
    22  	}{
    23  		"basic": {
    24  			[]interface{}{
    25  				map[string]interface{}{
    26  					"name": "bar",
    27  					"time": "5s",
    28  				},
    29  			},
    30  			&Target{
    31  				Name: "bar",
    32  				Time: 5 * time.Second,
    33  			},
    34  			nil,
    35  		},
    36  
    37  		"variables": {
    38  			[]interface{}{
    39  				map[string]interface{}{
    40  					"name": "{{user `name`}}",
    41  				},
    42  				map[string]interface{}{
    43  					"packer_user_variables": map[string]string{
    44  						"name": "bar",
    45  					},
    46  				},
    47  			},
    48  			&Target{
    49  				Name: "bar",
    50  			},
    51  			nil,
    52  		},
    53  
    54  		"filter": {
    55  			[]interface{}{
    56  				map[string]interface{}{
    57  					"name":    "{{user `name`}}",
    58  					"address": "{{user `name`}}",
    59  				},
    60  				map[string]interface{}{
    61  					"packer_user_variables": map[string]string{
    62  						"name": "bar",
    63  					},
    64  				},
    65  			},
    66  			&Target{
    67  				Name:    "bar",
    68  				Address: "{{user `name`}}",
    69  			},
    70  			&DecodeOpts{
    71  				Interpolate: true,
    72  				InterpolateFilter: &interpolate.RenderFilter{
    73  					Include: []string{"name"},
    74  				},
    75  			},
    76  		},
    77  
    78  		"build name": {
    79  			[]interface{}{
    80  				map[string]interface{}{
    81  					"name": "{{build_name}}",
    82  				},
    83  				map[string]interface{}{
    84  					"packer_build_name": "foo",
    85  				},
    86  			},
    87  			&Target{
    88  				Name: "foo",
    89  			},
    90  			nil,
    91  		},
    92  
    93  		"build type": {
    94  			[]interface{}{
    95  				map[string]interface{}{
    96  					"name": "{{build_type}}",
    97  				},
    98  				map[string]interface{}{
    99  					"packer_builder_type": "foo",
   100  				},
   101  			},
   102  			&Target{
   103  				Name: "foo",
   104  			},
   105  			nil,
   106  		},
   107  	}
   108  
   109  	for k, tc := range cases {
   110  		var result Target
   111  		err := Decode(&result, tc.Opts, tc.Input...)
   112  		if err != nil {
   113  			t.Fatalf("err: %s\n\n%s", k, err)
   114  		}
   115  
   116  		if !reflect.DeepEqual(&result, tc.Output) {
   117  			t.Fatalf("bad:\n\n%#v\n\n%#v", &result, tc.Output)
   118  		}
   119  	}
   120  }