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Class: Mocha::StateMachine
— Mocha 0.11.3
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<span class="title">StateMachine</span>
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<div id="content"><h1>Class: Mocha::StateMachine
</h1>
<dl class="box">
<dt class="r1">Inherits:</dt>
<dd class="r1">
<span class="inheritName"><span class='object_link'><a href="../Object.html" title="Object (class)">Object</a></span></span>
<ul class="fullTree">
<li><span class='object_link'><a href="../Object.html" title="Object (class)">Object</a></span></li>
<li class="next">Mocha::StateMachine</li>
</ul>
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<dt class="r2 last">Defined in:</dt>
<dd class="r2 last">lib/mocha/state_machine.rb</dd>
</dl>
<div class="clear"></div>
<h2>Overview</h2><div class="docstring">
<div class="discussion">
<p>A state machine that is used to constrain the order of invocations. An
invocation can be constrained to occur when a state <span class='object_link'><a href="#is-instance_method" title="Mocha::StateMachine#is (method)">#is</a></span>, or <span class='object_link'><a href="#is_not-instance_method" title="Mocha::StateMachine#is_not (method)">#is_not</a></span>,
active.</p>
</div>
</div>
<div class="tags">
</div><h2>Defined Under Namespace</h2>
<p class="children">
<strong class="classes">Classes:</strong> <span class='object_link'><a href="StateMachine/State.html" title="Mocha::StateMachine::State (class)">State</a></span>, <span class='object_link'><a href="StateMachine/StatePredicate.html" title="Mocha::StateMachine::StatePredicate (class)">StatePredicate</a></span>
</p>
<h2>
Instance Method Summary
<small>(<a href="#" class="summary_toggle">collapse</a>)</small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#become-instance_method" title="#become (instance method)">- (Object) <strong>become</strong>(next_state_name) </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Put the <span class='object_link'><a href="" title="Mocha::StateMachine (class)">StateMachine</a></span> into the <tt>next_state_name</tt>.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#is-instance_method" title="#is (instance method)">- (State) <strong>is</strong>(state_name) </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Provides a mechanism to change the <span class='object_link'><a href="" title="Mocha::StateMachine (class)">StateMachine</a></span> into the state specified
by <tt>state_name</tt> at some point in the future.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#is_not-instance_method" title="#is_not (instance method)">- (Object) <strong>is_not</strong>(state_name) </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Provides a mechanism to determine whether the <span class='object_link'><a href="" title="Mocha::StateMachine (class)">StateMachine</a></span> is not in the
state specified by <tt>state_name</tt> at some point in the future.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#starts_as-instance_method" title="#starts_as (instance method)">- (StateMachine) <strong>starts_as</strong>(initial_state_name) </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Put the <span class='object_link'><a href="" title="Mocha::StateMachine (class)">StateMachine</a></span> into the state specified by
<tt>initial_state_name</tt>.</p>
</div></span>
</li>
</ul>
<div id="instance_method_details" class="method_details_list">
<h2>Instance Method Details</h2>
<div class="method_details first">
<p class="signature first" id="become-instance_method">
- (<tt><span class='object_link'><a href="../Object.html" title="Object (class)">Object</a></span></tt>) <strong>become</strong>(next_state_name)
</p><div class="docstring">
<div class="discussion">
<p>Put the <span class='object_link'><a href="" title="Mocha::StateMachine (class)">Mocha::StateMachine</a></span> into the <tt>next_state_name</tt>.</p>
</div>
</div>
<div class="tags">
<h3>Parameters:</h3>
<ul class="param">
<li>
<span class='name'>next_state_name</span>
<span class='type'>(<tt>String</tt>)</span>
—
<div class='inline'>
<p>name of new state</p>
</div>
</li>
</ul>
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
76
77
78</pre>
</td>
<td>
<pre class="code"><span class="info file"># File 'lib/mocha/state_machine.rb', line 76</span>
<span class='kw'>def</span> <span class='id identifier rubyid_become'>become</span><span class='lparen'>(</span><span class='id identifier rubyid_next_state_name'>next_state_name</span><span class='rparen'>)</span>
<span class='ivar'>@current_state</span> <span class='op'>=</span> <span class='id identifier rubyid_next_state_name'>next_state_name</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<p class="signature " id="is-instance_method">
- (<tt><span class='object_link'><a href="StateMachine/State.html" title="Mocha::StateMachine::State (class)">State</a></span></tt>) <strong>is</strong>(state_name)
</p><div class="docstring">
<div class="discussion">
<p>Provides a mechanism to change the <span class='object_link'><a href="" title="Mocha::StateMachine (class)">Mocha::StateMachine</a></span> into the state specified
by <tt>state_name</tt> at some point in the future.</p>
<p>Or provides a mechanism to determine whether the <span class='object_link'><a href="" title="Mocha::StateMachine (class)">Mocha::StateMachine</a></span> is in the
state specified by <tt>state_name</tt> at some point in the future.</p>
</div>
</div>
<div class="tags">
<h3>Parameters:</h3>
<ul class="param">
<li>
<span class='name'>state_name</span>
<span class='type'>(<tt>String</tt>)</span>
—
<div class='inline'>
<p>name of new state</p>
</div>
</li>
</ul>
<h3>Returns:</h3>
<ul class="return">
<li>
<span class='type'>(<tt><span class='object_link'><a href="StateMachine/State.html" title="Mocha::StateMachine::State (class)">State</a></span></tt>)</span>
—
<div class='inline'>
<p>state which, when activated, will change the <span class='object_link'><a href="" title="Mocha::StateMachine (class)">Mocha::StateMachine</a></span> into the state
with the specified <tt>state_name</tt>.</p>
</div>
</li>
</ul>
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
86
87
88</pre>
</td>
<td>
<pre class="code"><span class="info file"># File 'lib/mocha/state_machine.rb', line 86</span>
<span class='kw'>def</span> <span class='id identifier rubyid_is'>is</span><span class='lparen'>(</span><span class='id identifier rubyid_state_name'>state_name</span><span class='rparen'>)</span>
<span class='const'>State</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='lparen'>(</span><span class='kw'>self</span><span class='comma'>,</span> <span class='id identifier rubyid_state_name'>state_name</span><span class='rparen'>)</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<p class="signature " id="is_not-instance_method">
- (<tt><span class='object_link'><a href="../Object.html" title="Object (class)">Object</a></span></tt>) <strong>is_not</strong>(state_name)
</p><div class="docstring">
<div class="discussion">
<p>Provides a mechanism to determine whether the <span class='object_link'><a href="" title="Mocha::StateMachine (class)">Mocha::StateMachine</a></span> is not in the
state specified by <tt>state_name</tt> at some point in the future.</p>
</div>
</div>
<div class="tags">
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
91
92
93</pre>
</td>
<td>
<pre class="code"><span class="info file"># File 'lib/mocha/state_machine.rb', line 91</span>
<span class='kw'>def</span> <span class='id identifier rubyid_is_not'>is_not</span><span class='lparen'>(</span><span class='id identifier rubyid_state_name'>state_name</span><span class='rparen'>)</span>
<span class='const'>StatePredicate</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='lparen'>(</span><span class='kw'>self</span><span class='comma'>,</span> <span class='id identifier rubyid_state_name'>state_name</span><span class='rparen'>)</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<p class="signature " id="starts_as-instance_method">
- (<tt><span class='object_link'><a href="" title="Mocha::StateMachine (class)">StateMachine</a></span></tt>) <strong>starts_as</strong>(initial_state_name)
</p><div class="docstring">
<div class="discussion">
<p>Put the <span class='object_link'><a href="" title="Mocha::StateMachine (class)">Mocha::StateMachine</a></span> into the state specified by
<tt>initial_state_name</tt>.</p>
</div>
</div>
<div class="tags">
<h3>Parameters:</h3>
<ul class="param">
<li>
<span class='name'>initial_state_name</span>
<span class='type'>(<tt>String</tt>)</span>
—
<div class='inline'>
<p>name of initial state</p>
</div>
</li>
</ul>
<h3>Returns:</h3>
<ul class="return">
<li>
<span class='type'>(<tt><span class='object_link'><a href="" title="Mocha::StateMachine (class)">StateMachine</a></span></tt>)</span>
—
<div class='inline'>
<p>state machine, thereby allowing invocations of other <span class='object_link'><a href="" title="Mocha::StateMachine (class)">Mocha::StateMachine</a></span> methods
to be chained.</p>
</div>
</li>
</ul>
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
68
69
70
71</pre>
</td>
<td>
<pre class="code"><span class="info file"># File 'lib/mocha/state_machine.rb', line 68</span>
<span class='kw'>def</span> <span class='id identifier rubyid_starts_as'>starts_as</span><span class='lparen'>(</span><span class='id identifier rubyid_initial_state_name'>initial_state_name</span><span class='rparen'>)</span>
<span class='id identifier rubyid_become'>become</span><span class='lparen'>(</span><span class='id identifier rubyid_initial_state_name'>initial_state_name</span><span class='rparen'>)</span>
<span class='kw'>self</span>
<span class='kw'>end</span></pre>
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