Class

org.scalatest.MustMatchers

HavePropertyMatcherGenerator

Related Doc: package MustMatchers

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final class HavePropertyMatcherGenerator extends AnyRef

This class is part of the ScalaTest matchers DSL. Please see the documentation for Matchers for an overview of the matchers DSL.

This class is used as the result of an implicit conversion from class Symbol, to enable symbols to be used in have ('author ("Dickens")) syntax. The name of the implicit conversion method is convertSymbolToHavePropertyMatcherGenerator.

Class HavePropertyMatcherGenerator's primary constructor takes a Symbol. The apply method uses reflection to find and access a property that has the name specified by the Symbol passed to the constructor, so it can determine if the property has the expected value passed to apply. If the symbol passed is 'title, for example, the apply method will use reflection to look for a public Java field named "title", a public method named "title", or a public method named "getTitle". If a method, it must take no parameters. If multiple candidates are found, the apply method will select based on the following algorithm:

FieldMethod"get" MethodResult
   Throws TestFailedException, because no candidates found
  getTitle()Invokes getTitle()
 title() Invokes title()
 title()getTitle()Invokes title() (this can occur when BeanProperty annotation is used)
title  Accesses field title
title getTitle()Invokes getTitle()
titletitle() Invokes title()
titletitle()getTitle()Invokes title() (this can occur when BeanProperty annotation is used)

Source
MustMatchers.scala
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Instance Constructors

  1. new HavePropertyMatcherGenerator(symbol: Symbol)

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Value Members

  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. def apply(expectedValue: Any): HavePropertyMatcher[AnyRef, Any]

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    This method enables the following syntax:

    This method enables the following syntax:

    book must have ('title ("A Tale of Two Cities"))
                             ^
    

    This class has an apply method that will produce a HavePropertyMatcher[AnyRef, Any]. The implicit conversion method, convertSymbolToHavePropertyMatcherGenerator, will cause the above line of code to be eventually transformed into:

    book must have (convertSymbolToHavePropertyMatcherGenerator('title).apply("A Tale of Two Cities"))
    

  5. final def asInstanceOf[T0]: T0

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  6. def clone(): AnyRef

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  7. final def eq(arg0: AnyRef): Boolean

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  8. def equals(arg0: Any): Boolean

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  9. def finalize(): Unit

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  10. final def getClass(): Class[_]

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  11. def hashCode(): Int

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  12. final def isInstanceOf[T0]: Boolean

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  13. final def ne(arg0: AnyRef): Boolean

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  14. final def notify(): Unit

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  15. final def notifyAll(): Unit

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  16. final def synchronized[T0](arg0: ⇒ T0): T0

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  17. def toString(): String

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  18. final def wait(): Unit

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  19. final def wait(arg0: Long, arg1: Int): Unit

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  20. final def wait(arg0: Long): Unit

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