Test-case name:XFCE4 Mixer

This test will check that xfce4-mixer can be opened either from a terminal window or from the applications menu, and shutdown
<dl>
    <dt>Open a terminal window, type <code>xfce4-mixer</code> at the prompt and hit the "Enter" key</dt>
        <dd>Audio mixer opens</dd>
    <dt>Click the top right "X" of the window's title bar to close the application</dt>
        <dd>Audio mixer closes</dd>
    <dt>Point your mouse pointer to the Applications Menu icon and click it</dt>
        <dd>A menu drops down</dd>
    <dt>Navigate to Multimedia -> Audio Mixer</dt>
        <dd>Audio mixer opens</dd>
    <dt>Click the "Quit" button</dt>
        <dd>Audio mixer closes</dd>
</dl>

This test will check that xfce4-mixer allows you to select which controls are visible in its GUI
<dl>
    <dt>Open Audio mixer either from a terminal window or from the applications menu</dt>
        <dd>Audio mixer opens</dd>
    <dt>Click the "Select Controls..." button</dt>
        <dd>Select Controls dialogue window opens</dd>
    <dt>Tick/Untick the options given and click the "Close"</dt>
        <dd>The visibility of the controls in Audio Mixer's Playback tab change accordingly to the preferences set</dd>
</dl>

This test will check that xfce4-mixer allows you to control the volume, mute/unmute and lock the channels of soundcards
<dl>
    <dt>Open Audio mixer either from a terminal window or from the applications menu</dt>
        <dd>Audio mixer opens</dd>
    <dt>Point your mouse cursor to the "Playback" tab and click it</dt>
        <dd>Playback tab is the active tab</dd>
    <dt>Hover mouse over both channels volume levels on 'Master', using your mouse wheel</dt>
        <dd>Volume of audio decreases and increases in response to volume change</dd>
    <dt>Click the 'Lock channels' icon under the channels</dt>
        <dd>Lock channels icon raises</dd>
    <dt>Select one audio channel and using your mouse wheel change the volume level</dt>
        <dd>Volume changes in one channel only</dd>
    <dt>Reset both volume channels to default and press the 'Lock channels' icon</dt>
        <dd>Sound returns to being the same in both channels, 'Lock channels' icon shows as depressed</dd>
    <dt>Click the 'Speakers' icon</dt>
        <dd>The icon shows as depressed and the sound is muted</dd>
    <dt>Click again the 'Speakers' icon</dt>
        <dd>The icon raises and the sound is unmuted</dd>
</dl>

This test will check that xfce4-mixer allows you to switch between multiple soundcards and configure them accordingly
<dl>
    <dt>Open Audio mixer either from a terminal window or from the applications menu</dt>
        <dd>Audio mixer opens</dd>
    <dt>Click on the 'Sound card' drop-list and choose a sound device from the list</dt>
        <dd>Audio Mixer GUI change available configuration tabs accordingly to the selection made</dd>
        <dd>Audio is heard through new output</dd>
</dl>
<strong>If all actions produce the expected results listed, please <a href="results#add_result">submit</a> a 'passed' result.
    If an action fails, or produces an unexpected result, please <a href="results#add_result">submit</a> 'failed' and <a href="../../buginstructions">file a bug</a>. Please be sure to include the bug number when you <a href="results#add_result">submit</a> your result</strong>