JSTests/test262/test/language/expressions/subtraction/bigint-errors.js

// Copyright (C) 2017 Josh Wolfe. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: subtraction operator ToNumeric with BigInt operands
esid: sec-subtraction-operator-minus-runtime-semantics-evaluation
features: [BigInt, Symbol, Symbol.toPrimitive, computed-property-names]
---*/
assert.throws(TypeError, function() {
  Symbol('1') - 0n;
}, 'Symbol("1") - 0n throws TypeError');

assert.throws(TypeError, function() {
  0n - Symbol('1');
}, '0n - Symbol("1") throws TypeError');

assert.throws(TypeError, function() {
  Object(Symbol('1')) - 0n;
}, 'Object(Symbol("1")) - 0n throws TypeError');

assert.throws(TypeError, function() {
  0n - Object(Symbol('1'));
}, '0n - Object(Symbol("1")) throws TypeError');

assert.throws(TypeError, function() {
  ({
    [Symbol.toPrimitive]: function() {
      return Symbol('1');
    }
  }) - 0n;
}, '({[Symbol.toPrimitive]: function() {return Symbol("1");}}) - 0n throws TypeError');

assert.throws(TypeError, function() {
  0n - {
    [Symbol.toPrimitive]: function() {
      return Symbol('1');
    }
  };
}, '0n - {[Symbol.toPrimitive]: function() {return Symbol("1");}} throws TypeError');

assert.throws(TypeError, function() {
  ({
    valueOf: function() {
      return Symbol('1');
    }
  }) - 0n;
}, '({valueOf: function() {return Symbol("1");}}) - 0n throws TypeError');

assert.throws(TypeError, function() {
  0n - {
    valueOf: function() {
      return Symbol('1');
    }
  };
}, '0n - {valueOf: function() {return Symbol("1");}} throws TypeError');

assert.throws(TypeError, function() {
  ({
    toString: function() {
      return Symbol('1');
    }
  }) - 0n;
}, '({toString: function() {return Symbol("1");}}) - 0n throws TypeError');

assert.throws(TypeError, function() {
  0n - {
    toString: function() {
      return Symbol('1');
    }
  };
}, '0n - {toString: function() {return Symbol("1");}} throws TypeError');