SCALA-724: Code companion for the article (Improve the tests)

Author: oforero

scala-core-modules/scala-core/src/test/scala-3/com/baeldung/scala/patternmatching/MultipleMatchesUnitTest

@@ -0,0 +1,33 @@
+package com.baeldung.scala.patternmatching
+
+import org.scalatest.flatspec.AnyFlatSpec
+import org.scalatest.matchers.should.Matchers
+
+class MultipleMatchesUnitTest extends AnyFlatSpec with Matchers {
+
+  "executeCommand" should "start the system when given the command" in {
+    val result = executeCommand(Start)
+    result shouldEqual "System Starting."
+  }
+
+  it should "stop the system when given the command" in {
+    val result = executeCommand(CustomCommand("halt"))
+    result shouldEqual "System Stopping."
+  }
+
+  "httpResponse" should "Error" in {
+    val result = httpResponse(404)
+    result shouldEqual "Error"
+  }
+
+  "multipleTypePatterns" should "Error" in {
+    val result = multipleTypePatterns(4.4)
+    result shouldEqual "It's something else"
+  }
+
+  "unionTypePattern" should "Error" in {
+    val result = unionTypePattern(42)
+    result shouldEqual "It's either a String or an Int"
+  }
+
+}