assertEquals(7, binaryToDecimal(111)); $this->assertEquals(5, binaryToDecimal(101)); $this->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() { $this->assertEquals(111, decimalToBinary(7)); $this->assertEquals(101, decimalToBinary(5)); $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() { $this->assertEquals(8, octalToDecimal(10)); $this->assertEquals(9, octalToDecimal(11)); $this->assertEquals(589, octalToDecimal(1115)); $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() { $this->assertEquals(10, decimalToOctal(8)); $this->assertEquals(11, decimalToOctal(9)); $this->assertEquals(1115, decimalToOctal(589)); $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() { $this->assertEquals('A', decimalToHex(10)); $this->assertEquals('1D28A0D3', decimalToHex(489201875)); $this->assertEquals('AB', decimalToHex(171)); $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() { $this->assertEquals(10, hexToDecimal('A')); $this->assertEquals(489201875, hexToDecimal('1D28A0D3')); $this->assertEquals(171, hexToDecimal('AB')); $this->expectException(\Exception::class); $this->expectExceptionMessage('Please pass a valid Hexadecimal Number for Converting it to a Decimal Number.'); hexToDecimal("this is a string"); } public function testSpeedConversion() { $this->assertEquals(11.18, convertSpeed(5, 'm/s', 'mph')); $this->assertEquals(5.49, convertSpeed(5, 'ft/s', 'km/h')); $this->assertEquals(3, convertSpeed(3, 'km/h', 'km/h')); $this->assertEquals(12.96, convertSpeed(7, 'kn', 'km/h')); $this->assertEquals(19.31, convertSpeed(12, 'mph', 'km/h')); $this->assertEquals(1, convertSpeed(0.514, 'm/s', 'kn')); $this->expectException(\Exception::class); convertSpeed('1', 'km/h', 'mph'); $this->expectException(\Exception::class); convertSpeed(1, 'km/h', 'miles'); } }