Issue #123 closed

darccio · May 17, 2020 · 9080aaf · 9080aaf
1 parent b73121e
commit 9080aaf
Showing 1 changed file with 45 additions and 0 deletions.
diff --git a/issue123_test.go b/issue123_test.go
@@ -0,0 +1,45 @@
+package mergo
+
+import (
+	"testing"
+)
+
+func TestIssue123(t *testing.T) {
+	src := map[string]interface{}{
+		"col1": nil,
+		"col2": 4,
+		"col3": nil,
+	}
+	dst := map[string]interface{}{
+		"col1": 2,
+		"col2": 3,
+		"col3": 3,
+	}
+
+	// Expected behavior
+	if err := Merge(&dst, src, WithOverride); err != nil {
+		t.Fatal(err)
+	}
+	testCases := []struct {
+		key      string
+		expected interface{}
+	}{
+		{
+			"col1",
+			nil,
+		},
+		{
+			"col2",
+			4,
+		},
+		{
+			"col3",
+			nil,
+		},
+	}
+	for _, tC := range testCases {
+		if dst[tC.key] != tC.expected {
+			t.Fatalf("expected %v in dst[%q], got %v", tC.expected, tC.key, dst[tC.key])
+		}
+	}
+}