Stephen Melrose

public function testSetBackgroundColor()
{
    // Get the test image
    $image = $this->getTestImage();

    // Validate default background color
    $this->assertEquals(NULL, $image->getBackgroundColor());

    // Test invalid background colors
    $invalidBackgroundColors = array(
        NULL,
        true,
        false,
        array(),
        '',
        'red',
        'green',
        '255,255,255',
        12
    );
    foreach($invalidBackgroundColors as $invalidBackgroundColor)
    {
        try
        {
            $image->setBackgroundColor($invalidBackgroundColor);
        }
        catch(SM_Image_Exception $e) { continue; }

        $this->fail('An invalid background color did not throw an expected SM_Image_Exception.');
    }

    // Set the background color (SM_Image_Exception would be thrown if error)
    $image->setBackgroundColor(array(100,150,200));

    // Validate the background color was set
    $backgroundColor = $image->getBackgroundColor();
    $this->assertType('array', $backgroundColor);
    $this->assertArrayHasKey('red', $backgroundColor);
    $this->assertArrayHasKey('green', $backgroundColor);
    $this->assertArrayHasKey('blue', $backgroundColor);
    $this->assertEquals(100, $backgroundColor['red']);
    $this->assertEquals(150, $backgroundColor['green']);
    $this->assertEquals(200, $backgroundColor['blue']);

    // Try and set the background color again, fail as you shouldn't be able to
    try
    {
        $image->setBackgroundColor(array(150,50,120));
    }
    catch (SM_Image_Exception $e2) {}
    if (isset($e2))
    {
        $this->fail('Trying to set the background color again did not throw an expected SM_Image_Exception (1).');
    }

    // Clean-up
    unset($image);

    // Get the test image
    $image = $this->getTestImage(IMAGETYPE_PNG);

    // Set the background color to transparent
    $image->setBackgroundColor(IMG_COLOR_TRANSPARENT);

    // Validate the background color was set
    $this->assertEquals(IMG_COLOR_TRANSPARENT, $image->getBackgroundColor());

    // Try and set the background color again, fail as you shouldn't be able to
    try
    {
        $image->setBackgroundColor(IMG_COLOR_TRANSPARENT);
    }
    catch (SM_Image_Exception $e3) {}
    if (isset($e3))
    {
        $this->fail('Trying to set the background color again did not throw an expected SM_Image_Exception (2).');
    }

    // Clean-up
    unset($image);
}