Use the `PHPUnit\Framework\TestCase` notation instead of `PHPUnit_Framework_TestCase` while extending our TestCases. This will help us migrate to PHPUnit 6, that [no longer support snake case class names](https://github.com/sebastianbergmann/phpunit/blob/master/ChangeLog-6.0.md#changed-1). |
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| .. | ||
| CalculationTest.php | ||
| DateTimeTest.php | ||
| EngineeringTest.php | ||
| FinancialTest.php | ||
| FunctionsTest.php | ||
| LogicalTest.php | ||
| LookupRefTest.php | ||
| MathTrigTest.php | ||
| TextDataTest.php | ||