Function TestInExpression

pkg/sql/ast/nodes_test.go:1017–1072

Test InExpression node

(t *testing.T)

// Test InExpression node
func TestInExpression(t *testing.T) {
	tests := []struct {
		name         string
		inExpr       *InExpression
		wantLiteral  string
		wantChildren int
	}{
		{
			name: "simple IN expression",
			inExpr: &InExpression{
				Expr: &Identifier{Name: "id"},
				List: []Expression{
					&LiteralValue{Value: "1"},
					&LiteralValue{Value: "2"},
					&LiteralValue{Value: "3"},
				},
				Not: false,
			},
			wantLiteral:  "IN",
			wantChildren: 4,
		},
		{
			name: "NOT IN expression",
			inExpr: &InExpression{
				Expr: &Identifier{Name: "status"},
				List: []Expression{
					&LiteralValue{Value: "deleted"},
					&LiteralValue{Value: "archived"},
				},
				Not: true,
			},
			wantLiteral:  "IN",
			wantChildren: 3,
		},
	}

	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.inExpr.TokenLiteral(); got != tt.wantLiteral {
				t.Errorf("InExpression.TokenLiteral() = %v, want %v", got, tt.wantLiteral)
			}

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

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

// Test BetweenExpression node