- Extends
PHPUnit\Framework\Constraint\Constraint - Implements
Countable PHPUnit\Framework\SelfDescribing
| Methods |
| public PHPUnit\Framework\Constraint\Constraint::count() : int Counts the number of constraint elements. |
| public PHPUnit\Framework\Constraint\Constraint::evaluate(?mixed $other, string $description = '', bool $returnResult = false) : ?bool Evaluates the constraint for parameter $other. If $returnResult is set to false (the default), an exception is thrown in case of a failure. null is returned otherwise. If $returnResult is true, the result of the evaluation is returned as a boolean value instead: true in case of success, false in case of a failure.
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| public toString() : string |
| Methods |
| protected additionalFailureDescription( $other) : string |
| protected PHPUnit\Framework\Constraint\Constraint::fail(?mixed $other, string $description, ?SebastianBergmann\Comparator\ComparisonFailure $comparisonFailure = NULL) : never Throws an exception for the given compared value and test description.
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| protected failureDescription( $other) : string |
| protected PHPUnit\Framework\Constraint\Constraint::failureDescriptionInContext(PHPUnit\Framework\Constraint\Operator $operator, ?mixed $role, ?mixed $other) : string Returns the description of the failure when this constraint appears in context of an $operator expression. The purpose of this method is to provide meaningful failure description in context of operators such as LogicalNot. Native PHPUnit constraints are supported out of the box by LogicalNot, but externally developed ones had no way to provide correct messages in this context. The method shall return empty string, when it does not handle customization by itself. |
| protected matches( $other) : bool |
| protected PHPUnit\Framework\Constraint\Constraint::reduce() : self Reduces the sub-expression starting at $this by skipping degenerate sub-expression and returns first descendant constraint that starts a non-reducible sub-expression. Returns $this for terminal constraints and for operators that start non-reducible sub-expression, or the nearest descendant of $this that starts a non-reducible sub-expression. A constraint expression may be modelled as a tree with non-terminal nodes (operators) and terminal nodes. For example: A degenerate sub-expression is a part of the tree, that effectively does not contribute to the evaluation of the expression it appears in. An example of degenerate sub-expression is a BinaryOperator constructed with single operand or nested BinaryOperators, each with single operand. An expression involving a degenerate sub-expression is equivalent to a reduced expression with the degenerate sub-expression removed, for example is equivalent to because the subexpression is degenerate. Calling reduce() on the LogicalOr object above, as well as on LogicalAnd, shall return the IsType('int') instance. Other specific reductions can be implemented, for example cascade of LogicalNot operators can be reduced to |
| protected PHPUnit\Framework\Constraint\Constraint::toStringInContext(PHPUnit\Framework\Constraint\Operator $operator, ?mixed $role) : string Returns a custom string representation of the constraint object when it appears in context of an $operator expression. The purpose of this method is to provide meaningful descriptive string in context of operators such as LogicalNot. Native PHPUnit constraints are supported out of the box by LogicalNot, but externally developed ones had no way to provide correct strings in this context. The method shall return empty string, when it does not handle customization by itself. |
protected PHPUnit\Framework\Constraint\Constraint::valueToTypeStringFragment(?mixed $value) : string
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