src/php/tests/unit_tests/TimevalTest.php

<?php
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class TimevalTest extends PHPUnit_Framework_TestCase
{
    public function testCompareSame()
    {
        $zero = Grpc\Timeval::zero();
        $this->assertSame(0, Grpc\Timeval::compare($zero, $zero));
    }

    public function testPastIsLessThanZero()
    {
        $zero = Grpc\Timeval::zero();
        $past = Grpc\Timeval::infPast();
        $this->assertLessThan(0, Grpc\Timeval::compare($past, $zero));
        $this->assertGreaterThan(0, Grpc\Timeval::compare($zero, $past));
    }

    public function testFutureIsGreaterThanZero()
    {
        $zero = Grpc\Timeval::zero();
        $future = Grpc\Timeval::infFuture();
        $this->assertLessThan(0, Grpc\Timeval::compare($zero, $future));
        $this->assertGreaterThan(0, Grpc\Timeval::compare($future, $zero));
    }

    /**
     * @depends testFutureIsGreaterThanZero
     */
    public function testNowIsBetweenZeroAndFuture()
    {
        $zero = Grpc\Timeval::zero();
        $future = Grpc\Timeval::infFuture();
        $now = Grpc\Timeval::now();
        $this->assertLessThan(0, Grpc\Timeval::compare($zero, $now));
        $this->assertLessThan(0, Grpc\Timeval::compare($now, $future));
    }

    public function testNowAndAdd()
    {
        $now = Grpc\Timeval::now();
        $delta = new Grpc\Timeval(1000);
        $deadline = $now->add($delta);
        $this->assertGreaterThan(0, Grpc\Timeval::compare($deadline, $now));
    }

    public function testNowAndSubtract()
    {
        $now = Grpc\Timeval::now();
        $delta = new Grpc\Timeval(1000);
        $deadline = $now->subtract($delta);
        $this->assertLessThan(0, Grpc\Timeval::compare($deadline, $now));
    }

    public function testAddAndSubtract()
    {
        $now = Grpc\Timeval::now();
        $delta = new Grpc\Timeval(1000);
        $deadline = $now->add($delta);
        $back_to_now = $deadline->subtract($delta);
        $this->assertSame(0, Grpc\Timeval::compare($back_to_now, $now));
    }

    public function testSimilar()
    {
      $a = Grpc\Timeval::now();
      $delta = new Grpc\Timeval(1000);
      $b = $a->add($delta);
      $thresh = new Grpc\Timeval(1100);
      $this->assertTrue(Grpc\Timeval::similar($a, $b, $thresh));
      $thresh = new Grpc\Timeval(900);
      $this->assertFalse(Grpc\Timeval::similar($a, $b, $thresh));
    }

    public function testSleepUntil()
    {
        $curr_microtime = microtime(true);
        $now = Grpc\Timeval::now();
        $delta = new Grpc\Timeval(1000);
        $deadline = $now->add($delta);
        $deadline->sleepUntil();
        $done_microtime = microtime(true);
        $this->assertTrue(($done_microtime - $curr_microtime) > 0.0009);
    }

    /**
     * @expectedException InvalidArgumentException
     */
    public function testConstructorInvalidParam()
    {
        $delta = new Grpc\Timeval('abc');
    }

    /**
     * @expectedException InvalidArgumentException
     */
    public function testAddInvalidParam()
    {
        $a = Grpc\Timeval::now();
        $a->add(1000);
    }

    /**
     * @expectedException InvalidArgumentException
     */
    public function testSubtractInvalidParam()
    {
        $a = Grpc\Timeval::now();
        $a->subtract(1000);
    }

    /**
     * @expectedException InvalidArgumentException
     */
    public function testCompareInvalidParam()
    {
        $a = Grpc\Timeval::compare(1000, 1100);
    }

    /**
     * @expectedException InvalidArgumentException
     */
    public function testSimilarInvalidParam()
    {
        $a = Grpc\Timeval::similar(1000, 1100, 1200);
    }

}