test: test against wacc-examples repo

.gitignore

@@ -2,3 +2,4 @@
 .bsp/
 .scala-build/
 .vscode/
+wacc-examples/

.gitlab-ci.yml

@@ -12,7 +12,7 @@ check_format:
   before_script:
     - cs install scalafmt
   script:
-    - scalafmt --check . || echo "Run 'scala format' to fix formatting issues."
+    - scalafmt --check .
 
 check_commits:
   stage: check
@@ -37,6 +37,12 @@ compile_jvm:
 
 test_jvm:
   stage: test
-  needs: [ compile_jvm ]
+  # Use our own runner (not cloud VM or shared) to ensure we have multiple cores.
+  tags: [ large ]
+  # This is expensive, so do use `dependencies` instead of `needs` to
+  # ensure all previous stages pass.
+  dependencies: [ compile_jvm ]
+  before_script:
+    - git clone https://$EXAMPLES_AUTH@gitlab.doc.ic.ac.uk/lab2425_spring/wacc-examples.git
   script:
     - scala test --platform jvm .

src/test/wacc/examples.scala

@@ -0,0 +1,92 @@
+package wacc
+
+import org.scalatest.{ParallelTestExecution, BeforeAndAfterAll}
+import org.scalatest.flatspec.AnyFlatSpec
+import org.scalatest.Inspectors.forEvery
+import parsley.{Success, Failure}
+
+class ParallelExamplesSpec
+    extends AnyFlatSpec
+    with BeforeAndAfterAll
+    with ParallelTestExecution {
+  val files =
+    allWaccFiles("wacc-examples/valid").map { p =>
+      (p.toString, (_: Int) == 0)
+    } ++
+      allWaccFiles("wacc-examples/invalid/syntaxErr").map { p =>
+        (p.toString, (_: Int) == 100)
+      } ++
+      allWaccFiles("wacc-examples/invalid/semanticErr").map { p =>
+        (p.toString, (_: Int) == 200)
+      } ++
+      allWaccFiles("wacc-examples/invalid/whack").map { p =>
+        (p.toString, List(0, 100, 200).contains)
+      }
+
+  // tests go here
+  forEvery(files.filter { (filename, _) =>
+    !fileIsDissallowed(filename)
+  }) { (filename, expectedResult) =>
+    s"$filename" should "be parsed with correct result" in {
+      val contents = os.read(os.Path(filename))
+      parser.parse(contents) match {
+        case Success(x)   => assert(expectedResult(x.toInt))
+        case Failure(msg) => fail(msg)
+      }
+    }
+  }
+
+  def allWaccFiles(dir: String): IndexedSeq[os.Path] =
+    val d = java.io.File(dir)
+    os.walk(os.Path(d.getAbsolutePath)).filter { _.ext == "wacc" }
+
+  def fileIsDissallowed(filename: String): Boolean =
+    Seq(
+      "wacc-examples/valid/advanced",
+      "wacc-examples/valid/array",
+      "wacc-examples/valid/basic/exit",
+      "wacc-examples/valid/basic/skip",
+      "wacc-examples/valid/expressions",
+      "wacc-examples/valid/function/nested_functions",
+      "wacc-examples/valid/function/simple_functions",
+      "wacc-examples/valid/if",
+      "wacc-examples/valid/IO/print",
+      "wacc-examples/valid/IO/read",
+      "wacc-examples/valid/IO/IOLoop.wacc",
+      "wacc-examples/valid/IO/IOSequence.wacc",
+      "wacc-examples/valid/pairs",
+      "wacc-examples/valid/runtimeErr",
+      "wacc-examples/valid/scope",
+      "wacc-examples/valid/sequence",
+      "wacc-examples/valid/variables",
+      "wacc-examples/valid/while",
+      // invalid (syntax)
+      "wacc-examples/invalid/syntaxErr/array",
+      "wacc-examples/invalid/syntaxErr/basic",
+      "wacc-examples/invalid/syntaxErr/expressions",
+      "wacc-examples/invalid/syntaxErr/function",
+      "wacc-examples/invalid/syntaxErr/if",
+      "wacc-examples/invalid/syntaxErr/literals",
+      "wacc-examples/invalid/syntaxErr/pairs",
+      "wacc-examples/invalid/syntaxErr/print",
+      "wacc-examples/invalid/syntaxErr/sequence",
+      "wacc-examples/invalid/syntaxErr/variables",
+      "wacc-examples/invalid/syntaxErr/while",
+      // invalid (semantic)
+      "wacc-examples/invalid/semanticErr/array",
+      "wacc-examples/invalid/semanticErr/exit",
+      "wacc-examples/invalid/semanticErr/expressions",
+      "wacc-examples/invalid/semanticErr/function",
+      "wacc-examples/invalid/semanticErr/if",
+      "wacc-examples/invalid/semanticErr/IO",
+      "wacc-examples/invalid/semanticErr/multiple",
+      "wacc-examples/invalid/semanticErr/pairs",
+      "wacc-examples/invalid/semanticErr/print",
+      "wacc-examples/invalid/semanticErr/read",
+      "wacc-examples/invalid/semanticErr/scope",
+      "wacc-examples/invalid/semanticErr/variables",
+      "wacc-examples/invalid/semanticErr/while",
+      // invalid (whack)
+      "wacc-examples/invalid/whack"
+    ).find(filename.contains).isDefined
+}