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<?php declare(strict_types=1); namespace Tests\PhpOffice\Math\Reader; use PhpOffice\Math\Element; use PhpOffice\Math\Exception\InvalidInputException; use PhpOffice\Math\Exception\NotImplementedException; use PhpOffice\Math\Math; use PhpOffice\Math\Reader\MathML; use PHPUnit\Framework\TestCase; class MathMLTest extends TestCase { public function testReadBasic(): void { $content = '<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE math PUBLIC "-//W3C//DTD MathML 2.0//EN" "http://www.w3.org/Math/DTD/mathml2/mathml2.dtd"> <math xmlns="http://www.w3.org/1998/Math/MathML"> <mrow> <mi>a</mi> <mo>⁢</mo> <msup><mi>x</mi><mn>2</mn></msup> <mo>+</mo><mi>b</mi><mo>⁢</mo><mi>x</mi> <mo>+</mo><mi>c</mi> </mrow> </math>'; $reader = new MathML(); $math = $reader->read($content); $this->assertInstanceOf(Math::class, $math); $elements = $math->getElements(); $this->assertCount(1, $elements); $this->assertInstanceOf(Element\Row::class, $elements[0]); /** @var Element\Row $element / $element = $elements[0]; $subElements = $element->getElements(); $this->assertCount(9, $subElements); /* @var Element\Identifier $subElement / $subElement = $subElements[0]; $this->assertInstanceOf(Element\Identifier::class, $subElement); $this->assertEquals('a', $subElement->getValue()); /* @var Element\Identifier $subElement / $subElement = $subElements[1]; $this->assertInstanceOf(Element\Operator::class, $subElement); $this->assertEquals('InvisibleTimes', $subElement->getValue()); /* @var Element\Superscript $subElement / $subElement = $subElements[2]; $this->assertInstanceOf(Element\Superscript::class, $subElements[2]); /* @var Element\Identifier $base / $base = $subElement->getBase(); $this->assertInstanceOf(Element\Identifier::class, $base); $this->assertEquals('x', $base->getValue()); /* @var Element\Numeric $superscript / $superscript = $subElement->getSuperscript(); $this->assertInstanceOf(Element\Numeric::class, $superscript); $this->assertEquals(2, $superscript->getValue()); /* @var Element\Operator $subElement / $subElement = $subElements[3]; $this->assertInstanceOf(Element\Operator::class, $subElement); $this->assertEquals('+', $subElement->getValue()); /* @var Element\Identifier $subElement / $subElement = $subElements[4]; $this->assertInstanceOf(Element\Identifier::class, $subElement); $this->assertEquals('b', $subElement->getValue()); /* @var Element\Operator $subElement / $subElement = $subElements[5]; $this->assertInstanceOf(Element\Operator::class, $subElement); $this->assertEquals('InvisibleTimes', $subElement->getValue()); /* @var Element\Identifier $subElement / $subElement = $subElements[6]; $this->assertInstanceOf(Element\Identifier::class, $subElement); $this->assertEquals('x', $subElement->getValue()); /* @var Element\Operator $subElement / $subElement = $subElements[7]; $this->assertInstanceOf(Element\Operator::class, $subElement); $this->assertEquals('+', $subElement->getValue()); /* @var Element\Identifier $subElement / $subElement = $subElements[8]; $this->assertInstanceOf(Element\Identifier::class, $subElement); $this->assertEquals('c', $subElement->getValue()); } public function testReadFraction(): void { $content = '<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE math PUBLIC "-//W3C//DTD MathML 2.0//EN" "http://www.w3.org/Math/DTD/mathml2/mathml2.dtd"> <math xmlns="http://www.w3.org/1998/Math/MathML"> <mfrac bevelled="true"> <mfrac> <mi> a </mi> <mi> b </mi> </mfrac> <mfrac> <mi> c </mi> <mi> d </mi> </mfrac> </mfrac> </math>'; $reader = new MathML(); $math = $reader->read($content); $this->assertInstanceOf(Math::class, $math); $elements = $math->getElements(); $this->assertCount(1, $elements); $this->assertInstanceOf(Element\Fraction::class, $elements[0]); /* @var Element\Fraction $element / $element = $elements[0]; $this->assertInstanceOf(Element\Fraction::class, $element->getNumerator()); /* @var Element\Fraction $subElement / $subElement = $element->getNumerator(); /* @var Element\Identifier $numerator / $numerator = $subElement->getNumerator(); $this->assertInstanceOf(Element\Identifier::class, $numerator); $this->assertEquals('a', $numerator->getValue()); /* @var Element\Identifier $denominator / $denominator = $subElement->getDenominator(); $this->assertInstanceOf(Element\Identifier::class, $denominator); $this->assertEquals('b', $denominator->getValue()); $this->assertInstanceOf(Element\Fraction::class, $element->getDenominator()); /* @var Element\Fraction $subElement / $subElement = $element->getDenominator(); /* @var Element\Identifier $numerator / $numerator = $subElement->getNumerator(); $this->assertInstanceOf(Element\Identifier::class, $numerator); $this->assertEquals('c', $numerator->getValue()); /* @var Element\Identifier $denominator / $denominator = $subElement->getDenominator(); $this->assertInstanceOf(Element\Identifier::class, $denominator); $this->assertEquals('d', $denominator->getValue()); } public function testReadFractionInvalid(): void { $this->expectException(InvalidInputException::class); $this->expectExceptionMessage('PhpOffice\Math\Reader\MathML::getElement : The tag `mfrac` has not two subelements'); $content = '<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE math PUBLIC "-//W3C//DTD MathML 2.0//EN" "http://www.w3.org/Math/DTD/mathml2/mathml2.dtd"> <math xmlns="http://www.w3.org/1998/Math/MathML"> <mfrac> <mi> a </mi> </mfrac> </math>'; $reader = new MathML(); $math = $reader->read($content); } public function testReadFractionWithRow(): void { $content = '<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE math PUBLIC "-//W3C//DTD MathML 2.0//EN" "http://www.w3.org/Math/DTD/mathml2/mathml2.dtd"> <math xmlns="http://www.w3.org/1998/Math/MathML"> <mfrac> <mrow> <mn>3</mn> <mo>-</mo> <mi>x</mi> </mrow> <mn>2</mn> </mfrac> </math>'; $reader = new MathML(); $math = $reader->read($content); $this->assertInstanceOf(Math::class, $math); $elements = $math->getElements(); $this->assertCount(1, $elements); $this->assertInstanceOf(Element\Fraction::class, $elements[0]); /* @var Element\Fraction $element / $element = $elements[0]; $this->assertInstanceOf(Element\Row::class, $element->getNumerator()); /* @var Element\Row $subElement / $subElement = $element->getNumerator(); $subsubElements = $subElement->getElements(); $this->assertCount(3, $subsubElements); /* @var Element\Numeric $subsubElement / $subsubElement = $subsubElements[0]; $this->assertInstanceOf(Element\Numeric::class, $subsubElement); $this->assertEquals('3', $subsubElement->getValue()); /* @var Element\Operator $subsubElement / $subsubElement = $subsubElements[1]; $this->assertInstanceOf(Element\Operator::class, $subsubElement); $this->assertEquals('-', $subsubElement->getValue()); /* @var Element\Identifier $subsubElement / $subsubElement = $subsubElements[2]; $this->assertInstanceOf(Element\Identifier::class, $subsubElement); $this->assertEquals('x', $subsubElement->getValue()); $this->assertInstanceOf(Element\Numeric::class, $element->getDenominator()); /* @var Element\Numeric $subElement / $subElement = $element->getDenominator(); $this->assertEquals('2', $subElement->getValue()); } public function testReadSuperscriptInvalid(): void { $this->expectException(InvalidInputException::class); $this->expectExceptionMessage('PhpOffice\Math\Reader\MathML::getElement : The tag `msup` has not two subelements'); $content = '<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE math PUBLIC "-//W3C//DTD MathML 2.0//EN" "http://www.w3.org/Math/DTD/mathml2/mathml2.dtd"> <math xmlns="http://www.w3.org/1998/Math/MathML"> <msup> <mi> a </mi> </msup> </math>'; $reader = new MathML(); $math = $reader->read($content); } public function testReadSemantics(): void { $content = '<?xml version="1.0" encoding="UTF-8"?> <math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> <semantics> <mrow> <mfrac> <mi>π</mi> <mn>2</mn> </mfrac> <mo stretchy="false">+</mo> <mrow> <mi>a</mi> <mo stretchy="false">∗</mo> <mn>2</mn> </mrow> </mrow> <annotation encoding="StarMath 5.0">{π} over {2} + { a } 2 </annotation> </semantics> </math>'; $reader = new MathML(); $math = $reader->read($content); $this->assertInstanceOf(Math::class, $math); $elements = $math->getElements(); $this->assertCount(1, $elements); $this->assertInstanceOf(Element\Semantics::class, $elements[0]); /** @var Element\Semantics $element / $element = $elements[0]; // Check MathML $subElements = $element->getElements(); $this->assertCount(1, $subElements); $this->assertInstanceOf(Element\Row::class, $subElements[0]); // Check Annotation $this->assertCount(1, $element->getAnnotations()); $this->assertEquals('{π} over {2} + { a } 2', $element->getAnnotation('StarMath 5.0')); } public function testReadNotImplemented(): void { $this->expectException(NotImplementedException::class); $this->expectExceptionMessage('PhpOffice\Math\Reader\MathML::getElement : The tag `mnotexisting` is not implemented'); $content = '<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE math PUBLIC "-//W3C//DTD MathML 2.0//EN" "http://www.w3.org/Math/DTD/mathml2/mathml2.dtd"> <math xmlns="http://www.w3.org/1998/Math/MathML"> <mnotexisting> <mi> a </mi> </mnotexisting> </math>'; $reader = new MathML(); $math = $reader->read($content); } }

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