Merge pull request #659 from RalfComtesse/scala_and_texttest

Scala and texttest

scala/.gitignore

@@ -1,4 +1,5 @@
 /bin/
+lib/
 
 # OSX Finder
 .DS_Store
@@ -6,6 +7,17 @@
 # IntelliJ
 .idea
 *.iml
+.bsp
+.bloop
+
+#vscode
+.vscode
+.metals
+.scala-build
+metals.sbt
+
+
+
 
 # Eclipse
 .worksheet
@@ -17,3 +29,4 @@
 .classpath
 
 target/
+approvaltests/gildedrose.testresult.txt

scala/README.md

@@ -20,3 +20,26 @@ sbt "run 10"
 ``` cmd
 sbt test
 ```
+
+## Run approval tests
+
+The approval test can be found in the src/test/scala/GildedRoseApprovalTest.scala. It uses the approval test framework from https://github.com/approvals/ApprovalTests.Java.
+
+The initial run will be a failing test and suggests an output to accept as the first approved version. Each subsequent run of the test will succeed until the output from the test changes.
+
+To approve a new version, simply accept some or all diffs between the existing approved files and the newly generated output.
+
+Approval tests are part of the test suite triggered by "sbt test". 
+
+``` cmd
+sbt test
+```
+
+## Run texttest version of approval tests
+
+To run the texttest version, first edit the texttest configuration file. It contains to sections for scala that need to be uncommented.
+
+* the executable and interpreter lines to run texttest_rig.py to trigger an sbt run
+* the four lines in the run_dependent_text section to ignore sbt's info and success lines in the output.
+
+Be aware that running the texttest version is somewhat slow since starting sbt takes some time. 

scala/build.sbt

@@ -1,11 +1,15 @@
-val scala3Version = "3.6.4"
+val scala3Version = "3.7.3"
 
 lazy val root = project
   .in(file("."))
   .settings(
-    name := "GildedRose",
-    version := "1.0",
-    scalaVersion := scala3Version,
-
-    libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.19" % "test"
+      name         := "GildedRose",
+      version      := "1.0",
+      scalaVersion := scala3Version,
+      libraryDependencies ++= Seq(
+          "org.scalatest"       %% "scalatest"         % "3.2.19" % Test,
+          "com.approvaltests"    % "approvaltests"     % "25.4.3" % Test,
+          "com.github.sbt.junit" % "jupiter-interface" % "0.15.1" % Test
+      ),
+      testOptions += Tests.Argument(TestFrameworks.JUnit)
   )

scala/project/.gitignore

@@ -1,2 +0,0 @@
-project/
-target/

scala/project/build.properties

@@ -1 +1 @@
-sbt.version=1.10.10
+sbt.version=1.11.6

scala/project/plugins.sbt

@@ -0,0 +1 @@
+addSbtPlugin("com.github.sbt.junit" % "sbt-jupiter-interface" % "0.15.1")

scala/src/main/scala/com/gildedrose/Item.scala

@@ -1,5 +1,5 @@
 package com.gildedrose
 
-class Item(val name: String, var sellIn: Int, var quality: Int) {
+case class Item(name: String, var sellIn: Int, var quality: Int) {
 
 }

scala/src/main/scala/com/gildedrose/Main.scala

@@ -3,16 +3,16 @@ package com.gildedrose
 object Main {
   def main(args: Array[String]): Unit = {
     val items = Array[Item](
-      new Item("+5 Dexterity Vest", 10, 20),
-      new Item("Aged Brie", 2, 0),
-      new Item("Elixir of the Mongoose", 5, 7),
-      new Item("Sulfuras, Hand of Ragnaros", 0, 80),
-      new Item("Sulfuras, Hand of Ragnaros", -1, 80),
-      new Item("Backstage passes to a TAFKAL80ETC concert", 15, 20),
-      new Item("Backstage passes to a TAFKAL80ETC concert", 10, 49),
-      new Item("Backstage passes to a TAFKAL80ETC concert", 5, 49),
+      Item("+5 Dexterity Vest", 10, 20),
+      Item("Aged Brie", 2, 0),
+      Item("Elixir of the Mongoose", 5, 7),
+      Item("Sulfuras, Hand of Ragnaros", 0, 80),
+      Item("Sulfuras, Hand of Ragnaros", -1, 80),
+      Item("Backstage passes to a TAFKAL80ETC concert", 15, 20),
+      Item("Backstage passes to a TAFKAL80ETC concert", 10, 49),
+      Item("Backstage passes to a TAFKAL80ETC concert", 5, 49),
       // this conjured item does not work properly yet
-      new Item("Conjured Mana Cake", 3, 6)
+      Item("Conjured Mana Cake", 3, 6)
     )
 
     val app = new GildedRose(items)

scala/src/test/scala/com/gildedrose/GildedRoseApprovalTest.scala

@@ -0,0 +1,38 @@
+package com.gildedrose
+
+import org.approvaltests.Approvals
+import org.approvaltests.reporters.DiffReporter
+import org.approvaltests.reporters.UseReporter
+import org.junit.jupiter.api.Test
+
+import java.io.ByteArrayInputStream
+import java.io.ByteArrayOutputStream
+import java.io.PrintStream
+
+@UseReporter(Array(classOf[DiffReporter]))
+class GildedRoseApprovalTest {
+
+  @Test
+  def foo(): Unit = {
+
+    val items: Array[Item] = Array(Item("foo", 0, 0))
+    val app: GildedRose    = new GildedRose(items)
+    app.updateQuality()
+
+    Approvals.verifyAll("Items", items)
+  }
+
+  @Test
+  def thirtyDays(): Unit = {
+
+    val fakeoutput: ByteArrayOutputStream = new ByteArrayOutputStream()
+    System.setOut(new PrintStream(fakeoutput))
+    System.setIn(new ByteArrayInputStream("a\n".getBytes()))
+
+    val args: Array[String] = Array("30")
+    TexttestFixture.main(args)
+    val output: String = fakeoutput.toString()
+
+    Approvals.verify(output)
+  }
+}

scala/src/test/scala/com/gildedrose/GildedRoseTest.scala

@@ -4,10 +4,10 @@ import org.scalatest.flatspec.AnyFlatSpec
 import org.scalatest.matchers.should.Matchers
 
 class GildedRoseTest extends AnyFlatSpec with Matchers {
-      it should "foo" in {
-        val items = Array[Item](new Item("foo", 0, 0))
-        val app = new GildedRose(items)
-        app.updateQuality()
-        app.items(0).name should equal ("fixme")
-      }
+  it should "foo" in {
+    val items = Array[Item](Item("foo", 0, 0))
+    val app   = new GildedRose(items)
+    app.updateQuality()
+    app.items(0).name should equal("fixme")
+  }
 }

scala/src/test/scala/com/gildedrose/TexttestFixture.scala

@@ -0,0 +1,34 @@
+package com.gildedrose
+
+object TexttestFixture {
+  def main(args: Array[String]): Unit = {
+    System.out.println("OMGHAI!")
+
+    val items = Array[Item](
+        Item("+5 Dexterity Vest", 10, 20),
+        Item("Aged Brie", 2, 0),
+        Item("Elixir of the Mongoose", 5, 7),
+        Item("Sulfuras, Hand of Ragnaros", 0, 80),
+        Item("Sulfuras, Hand of Ragnaros", -1, 80),
+        Item("Backstage passes to a TAFKAL80ETC concert", 15, 20),
+        Item("Backstage passes to a TAFKAL80ETC concert", 10, 49),
+        Item("Backstage passes to a TAFKAL80ETC concert", 5, 49), // this conjured item does not work properly yet
+        Item("Conjured Mana Cake", 3, 6)
+    )
+
+    val app  = new GildedRose(items)
+    var days = 2
+
+    if (args.nonEmpty) days = args(0).toInt + 1
+
+    for (i <- 0 until days) {
+      System.out.println("-------- day " + i + " --------")
+      System.out.println("name, sellIn, quality")
+      for (item <- items) {
+        System.out.println(s"${item.name}, ${item.sellIn}, ${item.quality}")
+      }
+      System.out.println()
+      app.updateQuality()
+    }
+  }
+}

scala/texttest_rig.py

@@ -0,0 +1,14 @@
+#!/usr/bin/env python
+"""
+This script uses sbt to execute the TexttestFixture.
+It is designed to be used by TextTest and specified in the file 'texttests/config.gr' in this repo.
+It is more convenient for TextTest to use since Gradle needs
+several arguments in addition to the one the TextTest fixture needs.
+"""
+import os
+import subprocess
+import sys
+
+args = " ".join(sys.argv[1:])
+TEXTTEST_HOME = os.environ.get("TEXTTEST_HOME", os.getcwd())
+subprocess.run(f"""(cd {TEXTTEST_HOME}/scala/; sbt -warn "Test / runMain com.gildedrose.TexttestFixture {args}") """, shell=True)

texttests/config.gr

@@ -70,4 +70,10 @@ interpreter:ruby
 # Settings for the Odin version
 #executable:${TEXTTEST_HOME}/odin/gilded_rose<include your OS executable extension here>
 
+
+# Settings for the scala version using sbt wrapped in a python script
+# executable:${TEXTTEST_HOME}/scala/texttest_rig.py
+# interpreter:python
+
+
 filename_convention_scheme:standard