Test Row Append (#2323)

sql3/planner/types/operator_test.go

@@ -0,0 +1,41 @@
+package types
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRow_Append(t *testing.T) {
+	tests := []struct {
+		name string
+		src  Row
+		arg  Row
+		want Row
+	}{
+		{
+			name: "basic",
+			src:  Row{1, 2, 3},
+			arg:  Row{4, 5, 6, 7},
+			want: Row{1, 2, 3, 4, 5, 6, 7},
+		},
+		{
+			name: "left",
+			src:  Row{},
+			arg:  Row{4, 5, 6},
+			want: Row{4, 5, 6},
+		},
+		{
+			name: "right",
+			src:  Row{1, 2, 3},
+			arg:  Row{},
+			want: Row{1, 2, 3},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := tt.src.Append(tt.arg)
+			assert.Equal(t, tt.want, got)
+		})
+	}
+}