Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/cfostools/public_html/cfostools.evoqas.com/vendor/markrogoyski/math-php/tests/LinearAlgebra/Matrix/Numeric/NumericDiagonalMatrixTest.php:7 Stack trace: #0 {main} thrown in /home/cfostools/public_html/cfostools.evoqas.com/vendor/markrogoyski/math-php/tests/LinearAlgebra/Matrix/Numeric/NumericDiagonalMatrixTest.php on line 7