phpmock\functions\FixedMicrotimeFunction::setMicrotimeAsFloat PHP Method

    public function setMicrotimeAsFloat($timestamp)
    {
        if (!is_numeric($timestamp)) {
            throw new \InvalidArgumentException("Timestamp should be numeric");
        }
        $converter = new MicrotimeConverter();
        $this->timestamp = $converter->convertFloatToString($timestamp);
    }

 /**
  * Tests getCallable()
  *
  * @test
  */
 public function testGetCallable()
 {
     $function = new FixedMicrotimeFunction();
     $function->setMicrotimeAsFloat(1.00000001);
     $builder = new MockBuilder();
     $builder->setNamespace(__NAMESPACE__)->setName("microtime")->setFunctionProvider($function);
     $mock = $builder->build();
     $mock->enable();
     $this->assertEquals("0.00000001 1", microtime());
     $this->assertEquals(1.00000001, microtime(true));
     $mock->disable();
 }