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<?php

class Benchmark_test extends CI_TestCase {

public function set_up()

{

$this->benchmark = new CI_Benchmark();

}

// --------------------------------------------------------------------

public function test_mark()

{

$this->assertEmpty($this->benchmark->marker);

$this->benchmark->mark('code_start');

$this->assertEquals(1, count($this->benchmark->marker));

$this->assertArrayHasKey('code_start', $this->benchmark->marker);

}

// --------------------------------------------------------------------

public function test_elapsed_time()

{

$this->assertEquals('{elapsed_time}', $this->benchmark->elapsed_time());

$this->assertEmpty($this->benchmark->elapsed_time('undefined_point'));

$this->benchmark->mark('code_start');

$this->benchmark->mark('code_end');

// Override values, because time isn't testable, but make sure the markers were set

if (isset($this->benchmark->marker['code_start']) && is_float($this->benchmark->marker['code_start']))

{

$this->benchmark->marker['code_start'] = 1389956144.1944;

}

if (isset($this->benchmark->marker['code_end']) && is_float($this->benchmark->marker['code_end']))

{

$this->benchmark->marker['code_end'] = 1389956145.1946;

}

$this->assertEquals('1', $this->benchmark->elapsed_time('code_start', 'code_end', 0));

$this->assertEquals('1.0', $this->benchmark->elapsed_time('code_start', 'code_end', 1));

$this->assertEquals('1.00', $this->benchmark->elapsed_time('code_start', 'code_end', 2));

$this->assertEquals('1.000', $this->benchmark->elapsed_time('code_start', 'code_end', 3));

$this->assertEquals('1.0002', $this->benchmark->elapsed_time('code_start', 'code_end', 4));

$this->assertEquals('1.0002', $this->benchmark->elapsed_time('code_start', 'code_end'));

// Test with non-existing 2nd marker, but again - we need to override the value

$this->benchmark->elapsed_time('code_start', 'code_end2');

if (isset($this->benchmark->marker['code_end2']) && is_float($this->benchmark->marker['code_end2']))

{

$this->benchmark->marker['code_end2'] = 1389956146.2046;

}

$this->assertEquals('2.0102', $this->benchmark->elapsed_time('code_start', 'code_end2'));

}

// --------------------------------------------------------------------

public function test_memory_usage()

{

$this->assertEquals('{memory_usage}', $this->benchmark->memory_usage());

}

}