assertIsString(Helper::defaultChartColors(1000)); } public function testDefaultChartColorsMethodHandlesNegativeNumbers() { $this->assertIsString(Helper::defaultChartColors(-1)); } public function testParseCurrencyMethod() { $this->settings->set(['default_currency' => 'USD']); $this->assertSame(12.34, Helper::ParseCurrency('USD 12.34')); $this->settings->set(['digit_separator' => '1.234,56']); $this->assertSame(12.34, Helper::ParseCurrency('12,34')); } }