Source file src/github.com/imdario/mergo/issue123_test.go

Documentation: github.com/imdario/mergo

     1  package mergo_test
     2  
     3  import (
     4  	"testing"
     5  
     6  	"github.com/imdario/mergo"
     7  )
     8  
     9  func TestIssue123(t *testing.T) {
    10  	src := map[string]interface{}{
    11  		"col1": nil,
    12  		"col2": 4,
    13  		"col3": nil,
    14  	}
    15  	dst := map[string]interface{}{
    16  		"col1": 2,
    17  		"col2": 3,
    18  		"col3": 3,
    19  	}
    20  
    21  	// Expected behavior
    22  	if err := mergo.Merge(&dst, src, mergo.WithOverride); err != nil {
    23  		t.Fatal(err)
    24  	}
    25  	testCases := []struct {
    26  		expected interface{}
    27  		key      string
    28  	}{
    29  		{
    30  			nil,
    31  			"col1",
    32  		},
    33  		{
    34  			4,
    35  			"col2",
    36  		},
    37  		{
    38  			nil,
    39  			"col3",
    40  		},
    41  	}
    42  	for _, tC := range testCases {
    43  		if dst[tC.key] != tC.expected {
    44  			t.Fatalf("expected %v in dst[%q], got %v", tC.expected, tC.key, dst[tC.key])
    45  		}
    46  	}
    47  }
    48  

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