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evaluateExpression.test.ts
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36 lines (30 loc) · 1.21 KB
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import { evaluateExpression } from './evaluateExpression';
describe('evaluateExpression', () => {
it('evaluates simple expressions correctly', () => {
const { result, error } = evaluateExpression('2 + 2');
expect(error).toBe(false);
expect(result).toBe(4);
});
it('evaluates expressions with objects', () => {
const { result, error } = evaluateExpression('{ a: 1, b: 2 }.a + 1');
expect(error).toBe(false);
expect(result).toBe(2);
});
it('returns an error object on invalid expression', () => {
const { result, error } = evaluateExpression('foo.bar(');
expect(error).toBe(true);
expect(result).toMatch(/SyntaxError|Unexpected token|Unexpected end/);
});
it('evaluates expressions that throw runtime errors', () => {
const { result, error } = evaluateExpression('null.foo');
expect(error).toBe(true);
expect(result).toMatch(/TypeError|Cannot read property/);
});
it('handles expressions that are valid without parentheses', () => {
// e.g., function calls without wrapping
const { result, error } = evaluateExpression('Math.max(3, 5)');
expect(error).toBe(false);
expect(result).toBe(5);
});
// not sure how else this is used in ./previewEntry
});