From 657d2fb2c16b75c790bf3c3a63d1f830a42893db Mon Sep 17 00:00:00 2001
From: Jon Pretty <jon.pretty@propensive.com>
Date: Fri, 10 Nov 2017 12:59:57 +0000
Subject: More build cleanup, and a couple of extra tests

---
 build.sbt                        | 20 +-------------------
 tests/src/main/scala/tests.scala | 38 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+), 19 deletions(-)

diff --git a/build.sbt b/build.sbt
index 3e04384..628088f 100644
--- a/build.sbt
+++ b/build.sbt
@@ -17,7 +17,6 @@ lazy val examples = project
 lazy val tests = project
   .in(file("tests"))
   .settings(buildSettings: _*)
-  .settings(noPublishSettings: _*)
   .settings(unmanagedSettings)
   .settings(moduleName := "magnolia-tests")
   .dependsOn(examples)
@@ -25,7 +24,6 @@ lazy val tests = project
 lazy val benchmarks = project
   .in(file("benchmarks"))
   .settings(buildSettings: _*)
-  .settings(noPublishSettings: _*)
   .settings(moduleName := "magnolia-benchmarks")
   .dependsOn(examples)
 
@@ -77,12 +75,6 @@ lazy val publishSettings = Seq(
   )
 )
 
-lazy val noPublishSettings = Seq(
-  publish := (()),
-  publishLocal := (()),
-  publishArtifact := false
-)
-
 import java.io.File
 
 lazy val unmanagedSettings = unmanagedBase := (scalaVersion.value.split("\\.").map(_.toInt).to[List] match {
@@ -91,16 +83,6 @@ lazy val unmanagedSettings = unmanagedBase := (scalaVersion.value.split("\\.").m
 })
 
 lazy val scalaMacroDependencies: Seq[Setting[_]] = Seq(
-  libraryDependencies += "org.typelevel" %% "macro-compat" % "1.1.1",
   libraryDependencies += "org.scala-lang" % "scala-reflect" % scalaVersion.value,
-  libraryDependencies += "org.scala-lang" % "scala-compiler" % scalaVersion.value,
-  libraryDependencies += compilerPlugin(
-    "org.scalamacros" % "paradise" % "2.1.0" cross CrossVersion.full
-  )
+  libraryDependencies += "org.scala-lang" % "scala-compiler" % scalaVersion.value
 )
-
-credentials ++= (for {
-  username <- Option(System.getenv().get("SONATYPE_USERNAME"))
-  password <- Option(System.getenv().get("SONATYPE_PASSWORD"))
-} yield
-  Credentials("Sonatype Nexus Repository Manager", "oss.sonatype.org", username, password)).toSeq
diff --git a/tests/src/main/scala/tests.scala b/tests/src/main/scala/tests.scala
index f79a51b..10eb465 100644
--- a/tests/src/main/scala/tests.scala
+++ b/tests/src/main/scala/tests.scala
@@ -18,6 +18,14 @@ case class Company(name: String) extends Entity
 case class Person(name: String, age: Int) extends Entity
 case class Address(line1: String, occupant: Person)
 
+case class Lunchbox(fruit: Fruit, drink: String)
+object Fruit {
+  import examples._
+  implicit val showFruit: Show[String, Fruit] =
+    new Show[String, Fruit] { def show(f: Fruit): String = f.name }
+}
+case class Fruit(name: String)
+
 case class Item(name: String, quantity: Int = 1, price: Int)
 
 sealed trait Color
@@ -45,6 +53,29 @@ object Tests extends TestApp {
       implicitly[Show[String, Branch[String]]].show(Branch(Leaf("LHS"), Leaf("RHS")))
     }.assert(_ == "Branch(left=Leaf(value=LHS),right=Leaf(value=RHS))")
 
+    test("local implicit beats Magnolia") {
+      import magnolia.examples._
+      implicit val showPerson: Show[String, Person] = new Show[String, Person] { def show(p: Person) = "nobody" }
+      implicitly[Show[String, Address]].show(Address("Home", Person("John Smith", 44)))
+    }.assert(_ == "Address(line1=Home,occupant=nobody)")
+
+    test("even low-priority implicit beats Magnolia for nested case") {
+      import magnolia.examples._
+      import Show.gen
+      implicitly[Show[String, Lunchbox]].show(Lunchbox(Fruit("apple"), "lemonade"))
+    }.assert(_ == "Lunchbox(fruit=apple,drink=lemonade)")
+
+    test("low-priority implicit does not beat Magnolia when not nested") {
+      import magnolia.examples._
+      import Show.gen
+      implicitly[Show[String, Fruit]].show(Fruit("apple"))
+    }.assert(_ == "Fruit(name=apple)")
+
+    test("typeclass implicit scope has lower priority than ADT implicit scope") {
+      import magnolia.examples._
+      implicitly[Show[String, Fruit]].show(Fruit("apple"))
+    }.assert(_ == "apple")
+
     test("test equality false") {
       import examples._
       Eq.gen[Entity].equal(Person("John Smith", 34), Person("", 0))
@@ -124,5 +155,12 @@ object Tests extends TestApp {
                                       |    in parameter 'alpha' of product type Beta
                                       |"""))
 
+    val tupleDerivation = test("derive for a tuple") {
+      implicitly[Show[String, (Int, String)]]
+    }.returns()
+
+    test("serialize a tuple") {
+      tupleDerivation().show((42, "Hello World"))
+    }.assert(_ == "Tuple2(_1=42,_2=Hello World)")
   }
 }
-- 
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