| Conditions | 1 | 
| Paths | 1 | 
| Total Lines | 15 | 
| Code Lines | 8 | 
| Lines | 15 | 
| Ratio | 100 % | 
| Changes | 0 | ||
| 1 | <?php  | 
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| 84 | View Code Duplication | public function testIsNot()  | 
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| 85 |     { | 
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| 86 | $rule = Rule::fromArray(  | 
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| 87 | $ruleConfiguration = [  | 
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| 88 | Rule::TYPE_OBJECT => [  | 
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| 89 | '\DateTime',  | 
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| 90 | ]  | 
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| 91 | ]  | 
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| 92 | );  | 
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| 93 | |||
| 94 | $this->assertSame(  | 
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| 95 | false,  | 
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| 96 | $rule->isNot(Rule::TYPE_OBJECT)  | 
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| 97 | );  | 
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| 98 | }  | 
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| 99 | }  | 
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| 100 | 
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.