org.scalatest.verb

ShouldVerb

trait ShouldVerb extends AnyRef

Provides an implicit conversion that adds should methods to String to support the syntax of FlatSpec, WordSpec, org.scalatest.fixture.FlatSpec, and org.scalatest.fixture.WordSpec.

For example, this trait enables syntax such as the following test registration in FlatSpec and org.scalatest.fixture.FlatSpec:

"A Stack (when empty)" should "be empty" in { ... }
                       ^

It also enables syntax such as the following shared test registration in FlatSpec and org.scalatest.fixture.FlatSpec:

"A Stack (with one item)" should behave like nonEmptyStack(stackWithOneItem, lastValuePushed)
                          ^

In addition, it supports the registration of subject descriptions in WordSpec and org.scalatest.fixture.WordSpec, such as:

"A Stack (when empty)" should { ...
                       ^

And finally, it also supportds the registration of subject descriptions with after words in WordSpec and org.scalatest.fixture.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, org.scalatest.fixture.FlatSpec, and org.scalatest.fixture.WordSpec, is because an implicit conversion provided directly would conflict with the implicit conversion that provides should methods on String in the ShouldMatchers trait. By contrast, there is no conflict with the separate ShouldVerb trait approach, because:

So whether or not a FlatSpec, WordSpec, org.scalatest.fixture.FlatSpec, or org.scalatest.fixture.WordSpec mixes in ShouldMatchers, there will only be one implicit conversion in scope that adds should methods to Strings.

Also, because the class of the result of the overriding convertToStringShouldWrapper implicit conversion method provided in ShouldMatchers extends this trait's StringShouldWrapperForVerb class, the four uses of should provided here are still available. These four should are in fact available to any class that mixes in ShouldMatchers, but each takes an implicit parameter that is provided only in FlatSpec and org.scalatest.fixture.FlatSpec, or WordSpec and org.scalatest.fixture.WordSpec.

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Known Subclasses
FixtureFlatSpec, FixtureWordSpec, FlatSpec, FlatSpec, MultipleFixtureFlatSpec, MultipleFixtureWordSpec, ShouldMatchers, ShouldMatchers, ShouldMatchersForJUnit, ShouldMatchersForJUnit, WordSpec, WordSpec
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Type Members

  1. class StringShouldWrapperForVerb extends AnyRef

    This class supports the syntax of FlatSpec, WordSpec, org.scalatest.fixture.FlatSpec, and org.scalatest.fixture.WordSpec.

Value Members

  1. def != (arg0: AnyRef): Boolean

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  2. def != (arg0: Any): Boolean

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  3. def ## (): Int

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  4. def == (arg0: AnyRef): Boolean

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  5. def == (arg0: Any): Boolean

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  6. def asInstanceOf [T0] : T0

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  7. def clone (): AnyRef

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  8. implicit def convertToStringShouldWrapper (o: String): StringShouldWrapperForVerb

    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.

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  9. def eq (arg0: AnyRef): Boolean

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  15. def ne (arg0: AnyRef): Boolean

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  16. def notify (): Unit

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  17. def notifyAll (): Unit

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  18. def synchronized [T0] (arg0: ⇒ T0): T0

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  19. def toString (): String

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  20. def wait (): Unit

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