Macwire DI

src/test/scala/io/mattmoore/scala/playground/di/MacwireTaggingSpec.scala

@@ -0,0 +1,62 @@
+package io.mattmoore.scala.playground.di
+
+import com.softwaremill.macwire.wire
+import com.softwaremill.tagging._
+import org.scalatest.funspec.AnyFunSpec
+import org.scalatest.matchers.should.Matchers
+
+class MacwireTaggingSpec extends AnyFunSpec with Matchers {
+  describe("without macwire") {
+    case class Milk()
+
+    case class CoffeeBean() {
+      def description = "not implemented"
+    }
+
+    trait DefaultBean extends CoffeeBean {
+      override def description = "default coffee bean"
+    }
+
+    trait MonkeyBean extends CoffeeBean {
+      override def description = "monkey bean"
+    }
+
+    case class Coffee(milk: Milk, defaultBean: CoffeeBean, monkeyBean: CoffeeBean)
+
+    val milk = new Milk
+    val defaultBean = new CoffeeBean with DefaultBean
+    val monkeyBean = new CoffeeBean with MonkeyBean
+    val coffee = new Coffee(milk, defaultBean, monkeyBean)
+
+    it("should initialize correctly") {
+      coffee should not be (null)
+    }
+  }
+
+  describe("with macwire") {
+    case class Milk()
+
+//    trait DefaultBean {
+//      def description = "default coffee bean"
+//    }
+
+    trait MonkeyBean {
+      def description = "monkey bean"
+    }
+
+    case class CoffeeBean() {
+      def description = "not implemented"
+    }
+
+    case class Coffee(milk: Milk, bean: CoffeeBean)
+
+    val milk = wire[Milk]
+    val bean = wire[CoffeeBean].taggedWith[MonkeyBean]
+    val coffee = wire[Coffee]
+
+    it("should inject things") {
+      coffee should not be (null)
+      coffee.bean.description shouldBe "monkey bean"
+    }
+  }
+}

src/test/scala/io/mattmoore/scala/playground/di/SimpleMacwireSpec.scala

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+package io.mattmoore.scala.playground.di
+
+import com.softwaremill.macwire.wire
+import org.scalatest.funspec.AnyFunSpec
+import org.scalatest.matchers.should.Matchers
+
+class SimpleMacwireSpec extends AnyFunSpec with Matchers {
+  case class Milk()
+  case class CoffeeBean() {
+    def beanType: String = "monkey poop"
+  }
+  case class Coffee(milk: Milk, coffeeBean: CoffeeBean)
+
+  describe("without macwire") {
+    val milk = new Milk
+    val coffeeBean = new CoffeeBean
+    val coffee = new Coffee(milk, coffeeBean)
+    coffee should not be (null)
+    coffee.coffeeBean.beanType shouldBe "monkey poop"
+  }
+
+  describe("with macwire") {
+    val milk = wire[Milk]
+    val coffeeBean = wire[CoffeeBean]
+    val coffee = wire[Coffee]
+    coffee should not be (null)
+    coffee.coffeeBean.beanType shouldBe "monkey poop"
+  }
+}