org.scalatest.matchers.Matchers
This method enables the following syntax:
This method enables the following syntax:
book should 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 should have (convertSymbolToHavePropertyMatcherGenerator('title).apply("A Tale of Two Cities"))
This method is used to compare the receiver object (this
)
with the argument object (arg0
) for equivalence
This method is used to compare the receiver object (this
)
with the argument object (arg0
) for equivalence.
The default implementations of this method is an equivalence relation:
x
of type Any
,
x.equals(x)
should return true
.x
and y
of type
Any
, x.equals(y)
should return true
if and only
if y.equals(x)
returns true
.x
, y
, and z
of type AnyRef
if x.equals(y)
returns true
and
y.equals(z)
returns
true
, then x.equals(z)
should return true
.
If you override this method, you should verify that
your implementation remains an equivalence relation.
Additionally, when overriding this method it is often necessary to
override hashCode
to ensure that objects that are
"equal" (o1.equals(o2)
returns true
)
hash to the same Int
(o1.hashCode.equals(o2.hashCode)
).
the object to compare against this object for equality.
true
if the receiver object is equivalent to the argument; false
otherwise.
Returns a hash code value for the object
Returns a hash code value for the object.
The default hashing algorithm is platform dependent.
Note that it is allowed for two objects to have identical hash
codes (o1.hashCode.equals(o2.hashCode)
) yet not be
equal (o1.equals(o2)
returns false
). A
degenerate implementation could always return 0
.
However, it is required that if two objects are equal
(o1.equals(o2)
returns true
) that they
have identical hash codes
(o1.hashCode.equals(o2.hashCode)
). Therefore, when
overriding this method, be sure to verify that the behavior is
consistent with the equals
method.
Returns a string representation of the object
Returns a string representation of the object.
The default representation is platform dependent.
This class is part of the ScalaTest matchers DSL. Please see the documentation for
ShouldMatchers
orMustMatchers
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 inhave ('author ("Dickens"))
syntax. The name of the implicit conversion method isconvertSymbolToHavePropertyMatcherGenerator
.Class
HavePropertyMatcherGenerator
's primary constructor takes aSymbol
. Theapply
method uses reflection to find and access a property that has the name specified by theSymbol
passed to the constructor, so it can determine if the property has the expected value passed toapply
. If the symbol passed is'title
, for example, theapply
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, theapply
method will select based on the following algorithm:TestFailedException
, because no candidates foundgetTitle()
getTitle()
title()
title()
title()
getTitle()
title()
(this can occur whenBeanProperty
annotation is used)title
title
title
getTitle()
getTitle()
title
title()
title()
title
title()
getTitle()
title()
(this can occur whenBeanProperty
annotation is used)