github.com/jrperritt/terraform@v0.1.1-0.20170525065507-96f391dafc38/helper/variables/merge_test.go (about)

     1  package variables
     2  
     3  import (
     4  	"fmt"
     5  	"reflect"
     6  	"testing"
     7  )
     8  
     9  func TestMerge(t *testing.T) {
    10  	cases := []struct {
    11  		Name     string
    12  		A, B     map[string]interface{}
    13  		Expected map[string]interface{}
    14  	}{
    15  		{
    16  			"basic key/value",
    17  			map[string]interface{}{
    18  				"foo": "bar",
    19  			},
    20  			map[string]interface{}{
    21  				"bar": "baz",
    22  			},
    23  			map[string]interface{}{
    24  				"foo": "bar",
    25  				"bar": "baz",
    26  			},
    27  		},
    28  
    29  		{
    30  			"map unset",
    31  			map[string]interface{}{
    32  				"foo": "bar",
    33  			},
    34  			map[string]interface{}{
    35  				"bar": map[string]interface{}{
    36  					"foo": "bar",
    37  				},
    38  			},
    39  			map[string]interface{}{
    40  				"foo": "bar",
    41  				"bar": map[string]interface{}{
    42  					"foo": "bar",
    43  				},
    44  			},
    45  		},
    46  
    47  		{
    48  			"map merge",
    49  			map[string]interface{}{
    50  				"foo": "bar",
    51  				"bar": map[string]interface{}{
    52  					"bar": "baz",
    53  				},
    54  			},
    55  			map[string]interface{}{
    56  				"bar": map[string]interface{}{
    57  					"foo": "bar",
    58  				},
    59  			},
    60  			map[string]interface{}{
    61  				"foo": "bar",
    62  				"bar": map[string]interface{}{
    63  					"foo": "bar",
    64  					"bar": "baz",
    65  				},
    66  			},
    67  		},
    68  
    69  		{
    70  			"basic k/v with lists",
    71  			map[string]interface{}{
    72  				"foo": "bar",
    73  				"bar": []interface{}{"foo"},
    74  			},
    75  			map[string]interface{}{
    76  				"bar": []interface{}{"bar"},
    77  			},
    78  			map[string]interface{}{
    79  				"foo": "bar",
    80  				"bar": []interface{}{"bar"},
    81  			},
    82  		},
    83  	}
    84  
    85  	for i, tc := range cases {
    86  		t.Run(fmt.Sprintf("%d-%s", i, tc.Name), func(t *testing.T) {
    87  			actual := Merge(tc.A, tc.B)
    88  			if !reflect.DeepEqual(tc.Expected, actual) {
    89  				t.Fatalf("bad: %#v", actual)
    90  			}
    91  		})
    92  	}
    93  }