ShouldVerb
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package words
This class supports the syntax of FlatSpec, WordSpec, fixture.FlatSpec,
and fixture.WordSpec.
This class supports the syntax of FlatSpec, WordSpec, fixture.FlatSpec,
and fixture.WordSpec.
This class is used in conjunction with an implicit conversion to enable should methods to
be invoked on Strings.
Implicitly converts an object of type String to a StringShouldWrapperForVerb,
to enable should methods to be invokable on that object.
Implicitly converts an object of type String to a StringShouldWrapperForVerb,
to enable should methods to be invokable on that object.
Provides an implicit conversion that adds
shouldmethods toStringto support the syntax ofFlatSpec,WordSpec,fixture.FlatSpec, andfixture.WordSpec.For example, this trait enables syntax such as the following test registration in
FlatSpecandfixture.FlatSpec:"A Stack (when empty)" should "be empty" in { ... } ^It also enables syntax such as the following shared test registration in
FlatSpecandfixture.FlatSpec:"A Stack (with one item)" should behave like nonEmptyStack(stackWithOneItem, lastValuePushed) ^In addition, it supports the registration of subject descriptions in
WordSpecandfixture.WordSpec, such as:"A Stack (when empty)" should { ... ^And finally, it also supportds the registration of subject descriptions with after words in
WordSpecandfixture.WordSpec. For example:def provide = afterWord("provide") "The ScalaTest Matchers DSL" should provide { ^The reason this implicit conversion is provided in a separate trait, instead of being provided directly in
FlatSpec,WordSpec,fixture.FlatSpec, andfixture.WordSpec, is because an implicit conversion provided directly would conflict with the implicit conversion that providesshouldmethods onStringin theMatcherstrait. By contrast, there is no conflict with the separateShouldVerbtrait approach, because:FlatSpec,WordSpec,fixture.FlatSpec, andfixture.WordSpecmix inShouldVerbdirectly, andMatchersextendsShouldVerb, overriding theconvertToStringShouldWrapperimplicit conversion function.So whether or not a
FlatSpec,WordSpec,fixture.FlatSpec, orfixture.WordSpecmixes inMatchers, there will only be one implicit conversion in scope that addsshouldmethods toStrings.Also, because the class of the result of the overriding
convertToStringShouldWrapperimplicit conversion method provided inMatchersextends this trait'sStringShouldWrapperForVerbclass, the four uses ofshouldprovided here are still available. These fourshouldare in fact available to any class that mixes inMatchers, but each takes an implicit parameter that is provided only inFlatSpecandfixture.FlatSpec, orWordSpecandfixture.WordSpec.