getJasmineRequireObj().toBeCloseTo = function() { /** * {@link expect} the actual value to be within a specified precision of the expected value. * @function * @name matchers#toBeCloseTo * @since 1.3.0 * @param {Object} expected - The expected value to compare against. * @param {Number} [precision=2] - The number of decimal points to check. * @example * expect(number).toBeCloseTo(42.2, 3); */ function toBeCloseTo() { return { compare: function(actual, expected, precision) { if (precision !== 0) { precision = precision || 2; } if (expected === null || actual === null) { throw new Error( 'Cannot use toBeCloseTo with null. Arguments evaluated to: ' + 'expect(' + actual + ').toBeCloseTo(' + expected + ').' ); } // Infinity is close to Infinity and -Infinity is close to -Infinity, // regardless of the precision. if (expected === Infinity || expected === -Infinity) { return { pass: actual === expected }; } var pow = Math.pow(10, precision + 1); var delta = Math.abs(expected - actual); var maxDelta = Math.pow(10, -precision) / 2; return { pass: Math.round(delta * pow) <= maxDelta * pow }; } }; } return toBeCloseTo; };