testland/scalatest
Configures and runs ScalaTest - Scala-native test framework with multiple specification styles (FlatSpec, FunSuite, WordSpec, FreeSpec, AsyncFlatSpec for async); Matchers DSL (`should equal`, `should contain`, `shouldBe a [Class]`); integrates with ScalaCheck for property-based testing; sbt + Maven + Gradle support; tagged-test selective execution. Use when working with Scala codebases.
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matchers-dsl.mdreferences/
ScalaTest - Matchers DSL
Per scalatest.org/user_guide/using_matchers:
result should equal(42)
result shouldBe 42 // strict equality (uses ==)
result shouldEqual 42 // similar to equal but no parens
result should not equal 0
list should have size 5
list should contain("alice")
list should contain only("alice", "bob")
list should contain inOrder("alice", "bob")
map should contain key("alice")
map should contain value(42)
string should startWith("hello")
string should fullyMatch regex("\\d+")
opt shouldBe defined
opt shouldBe a [Some[_]]
result shouldBe a [Right[_, _]]
either shouldBe Right(42)
result should be > 10
result should be (within(1.0) of 42.0) // float toleranceFor full Matchers reference, see st-matchers.