Function TestBinaryExpression

pkg/sql/ast/nodes_test.go:742–800

Test BinaryExpression node

(t *testing.T)

// Test BinaryExpression node
func TestBinaryExpression(t *testing.T) {
	tests := []struct {
		name         string
		expr         *BinaryExpression
		wantLiteral  string
		wantChildren int
	}{
		{
			name: "equality expression",
			expr: &BinaryExpression{
				Left:     &Identifier{Name: "id"},
				Operator: "=",
				Right:    &LiteralValue{Value: "1"},
			},
			wantLiteral:  "=",
			wantChildren: 2,
		},
		{
			name: "AND expression",
			expr: &BinaryExpression{
				Left:     &BinaryExpression{Operator: "="},
				Operator: "AND",
				Right:    &BinaryExpression{Operator: ">"},
			},
			wantLiteral:  "AND",
			wantChildren: 2,
		},
		{
			name: "arithmetic expression",
			expr: &BinaryExpression{
				Left:     &Identifier{Name: "price"},
				Operator: "*",
				Right:    &LiteralValue{Value: "1.1"},
			},
			wantLiteral:  "*",
			wantChildren: 2,
		},
	}

	for _, tt := range tests {
		tt := tt // G601: Create local copy to avoid memory aliasing
		t.Run(tt.name, func(t *testing.T) {
			// Test TokenLiteral
			if got := tt.expr.TokenLiteral(); got != tt.wantLiteral {
				t.Errorf("BinaryExpression.TokenLiteral() = %v, want %v", got, tt.wantLiteral)
			}

			// Test Children
			children := tt.expr.Children()
			if len(children) != tt.wantChildren {
				t.Errorf("BinaryExpression.Children() count = %d, want %d", len(children), tt.wantChildren)
			}

			// Test that it implements Expression interface
			var _ Expression = tt.expr
			tt.expr.expressionNode()
		})
	}