expectException(\Exception::class); $this->expectExceptionMessage('Please pass a valid Binary Number for Converting it to a Decimal Number.'); binaryToDecimal("this is a string"); } public function testDecimalToBinary() { assertEquals(decimalToBinary(7), 111); assertEquals(decimalToBinary(5), 101); $this->expectException(\Exception::class); $this->expectExceptionMessage('Please pass a valid Decimal Number for Converting it to a Binary Number.'); decimalToBinary("this is a string"); } public function testOctalToDecimal() { assertEquals(octalToDecimal(10), 8); assertEquals(octalToDecimal(11), 9); assertEquals(octalToDecimal(1115), 589); $this->expectException(\Exception::class); $this->expectExceptionMessage('Please pass a valid Octal Number for Converting it to a Decimal Number.'); octalToDecimal("this is a string"); } public function testDecimalToOctal() { assertEquals(decimalToOctal(8), 10); assertEquals(decimalToOctal(9), 11); assertEquals(decimalToOctal(589), 1115); $this->expectException(\Exception::class); $this->expectExceptionMessage('Please pass a valid Decimal Number for Converting it to an Octal Number.'); decimalToOctal("this is a string"); } public function testDecimalToHex() { assertEquals(decimalToHex(10), 'A'); assertEquals(decimalToHex(489201875), '1D28A0D3'); assertEquals(decimalToHex(171), 'AB'); $this->expectException(\Exception::class); $this->expectExceptionMessage('Please pass a valid Decimal Number for Converting it to a Hexadecimal Number.'); decimalToHex("this is a string"); } public function testHexToDecimal() { assertEquals(hexToDecimal('A'), 10); assertEquals(hexToDecimal('1D28A0D3'), 489201875); assertEquals(hexToDecimal('AB'), 171); $this->expectException(\Exception::class); $this->expectExceptionMessage('Please pass a valid Hexadecimal Number for Converting it to a Decimal Number.'); hexToDecimal("this is a string"); } }