<?php declare(strict_types=1);
use PHPUnit\Framework\TestCase;
require_once(dirname(__FILE__)."/init.php");
final class CalculateTest extends TestCase
{
private $calculator;
protected function setUp(): void
{
$init = new Init();
$this->calculator = $init->calculator();
}
public function testTermFivePlusFiveEqualsTen(): void
{
$this->assertSame($this->calculator->calculate("5+5"), "10");
}
public function testTermTenTimesTwoEqualsTwenty(): void
{
$this->assertSame("20", $this->calculator->calculate("10*2"));
}
public function testTermTenPlusTwoWithParenthesesTimesTwo(): void
{
$this->assertSame("24", $this->calculator->calculate("(10+2)*2"));
}
public function testTermTwoTimesParantesesTenPlusTwo():void {
$this->assertSame("24", $this->calculator->calculate("2*(10+2)"));
}
public function testTermParantesesTwoTimesParanthesesTenPlusTwo():void {
$this->assertSame("24", $this->calculator->calculate("(2*(10+2))"));
}
public function testTermParantesesTwoTimesParanthesesTenPlusTwoCloseParantesesPlusTen():void {
$this->assertSame("34", $this->calculator->calculate("(2*(10+2)+10)"));
}
public function testTermParantesesTwoTimesParanthesesTenPlusTwoCloseParantesesPlusTenCloseParanthesesMinusTwelve():void {
$this->assertSame("22", $this->calculator->calculate("(2*(10+2)+10)-12"));
}
public function testTermParantesesTwoTimesParanthesesTenDivideTwoCloseParantesesPlusTenCloseParanthesesMinusTwelve():void {
$this->assertSame("8", $this->calculator->calculate("(2*(10/2)+10)-12"));
}
public function testTermTwoPotenceTwo():void {
$this->assertSame("4", $this->calculator->calculate("2^2"));
}
public function testTermParantheseTwoTimesThreeCloseParanthesePotenceTwo():void {
$this->assertSame("36", $this->calculator->calculate("(2*3)^2"));
}
public function testTermParantheseTwoPlusTwoCloseParanthesePotenceThree():void {
$this->assertSame("64", $this->calculator->calculate("(2+2)^3"));
}
public function testTermSquareRootSixteen():void {
$this->assertSame("4", $this->calculator->calculate("2?16"));
}
public function testTermPotenceHalfSixteen():void {
$this->assertSame("4", $this->calculator->calculate("16^(1/2)"));
}
public function addTermProvider() {
return array(
"Term Paranthese 2 times Paranthese 10 plus 2 equals 24" => array("(2*(10+2))","24"),
"Term minus Paranthese 2 equals -2" => array("-(2)", "-2"),
"Term minus Paranthese 2 equals -2" => array("(-2)", "-2"),
"Term minus Paranthese 2 equals -2" => array("(-2*4)", "-8"),
"Term minus Paranthese 2 equals -2" => array("(-2*-4)", "8"),
"Term minus Paranthese 2 equals -2" => array("-(2*-4)", "8"),
"Term minus minus 2 equals 2" => array("--2", "2"),
"Term 2 minus minus 2 equals 4" => array("2--2", "4"),
"Term 4 sqrt equals 2" => array("?4", "2"),
"Term 27 sqrt 3 equals 3" => array("3?27", "3"),
"Term -2 equals -2" => array("-2", "-2"),
"Term +2 equals 2" => array("+2", "2"),
"Term ++2 equals 2" => array("++2", "2"),
"Term /2 equals 0" => array("/2", "0"),
"Term 8 equals 8" => array("8", "8"),
"Term (9*3) sqrt 3 equals 3" => array("3?(9*3)", "3"),
"Term sin(2) equals 0.034899496702501" => array("sin(2)", "0.034899496702501"),
"Term 2*sin(2) equals 0.069798993405002" => array("2*sin(2)", "0.069798993405002"),
"Term sin(2)*2 equals 0.069798993405002" => array("sin(2)*2", "0.069798993405002"),
"Term cos(2) equals 0.9993908270191" => array("cos(2)", "0.9993908270191"),
"Term 2*cos(2) equals 1.9987816540382" => array("2*cos(2)", "1.9987816540382"),
"Term cos(2)*2 equals 1.9987816540382" => array("cos(2)*2", "1.9987816540382"),
"Term tan(2) equals 0.034920769491748" => array("tan(2)", "0.034920769491748"),
"Term 2*tan(2) equals 0.069841538983496" => array("2*tan(2)", "0.069841538983496"),
"Term tan(2)*2 equals 0.069841538983496" => array("tan(2)*2", "0.069841538983496"),
"Term tan((2*2)) equals 0.06992681194351" => array("tan((2*2))", "0.06992681194351"),
);
}
/**
* @dataProvider addTermProvider
*/
public function testTerm($term, $expected)
{
$result = $this->calculator->calculate($term);
$this->assertEquals($expected, $result);
}
/**
* @expectedException Exception
* @expectedExceptionMessage Division by Zero
*/
public function testTermTwoDivisionByZeroThrowsException() {
$this->expectException("Exception");
$this->expectExceptionMessage("Division by Zero");
$this->calculator->calculate("2/0");
}
public function testTermEmptyDivisionByZeroThrowsException() {
$this->expectException("Exception");
$this->expectExceptionMessage("Division by Zero");
$this->calculator->calculate("/0");
}
public function testTermKlammerOnlyThrowsException() {
//$this->expectException("Exception");
$this->expectExceptionMessage("Bitte einen gültigen Term eingeben");
$this->calculator->calculate("(");
}
protected function tearDown(): void {
$this->calculator=NULL;
}
}
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