Add basic Java unit tests to help gauge version compatibility.

Author: Lenny Halseth

codepulse/src/test/resources/com/secdec/codepulse/data/bytecode/test/java7-compiled.jar

@@ -0,0 +1,71 @@
+/*
+ * Code Pulse: A real-time code coverage testing tool. For more information
+ * see http://code-pulse.com
+ *
+ * Copyright (C) 2017 Applied Visions - http://securedecisions.avi.com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.secdec.codepulse.data.bytecode.test
+
+import java.io.File
+import java.util.zip.{ ZipEntry, ZipFile }
+import org.scalatest._
+import org.scalatest.Matchers._
+import com.secdec.codepulse.util.ZipEntryChecker
+import com.secdec.codepulse.data.bytecode._
+
+
+class JavaSuite extends FunSpec with Matchers {
+	describe("Uploaded Java project data") {
+		it("should be accepted if the archive contains Java classes compiled in Java version < 8") {
+			val file = new ZipFile(getClass.getResource("java7-compiled.jar").getPath)
+			val entry = file.getEntry("Main.class")
+			val stream = file.getInputStream(entry)
+
+			try {
+				AsmVisitors.parseMethodsFromClass(stream)
+			}
+			finally {
+				stream.close
+			}
+		}
+
+		it("should be accepted if the archive contains Java classes compiled in Java version 8") {
+			val file = new ZipFile(getClass.getResource("java8-compiled.jar").getPath)
+			val entry = file.getEntry("Main.class")
+			val stream = file.getInputStream(entry)
+
+			try {
+				AsmVisitors.parseMethodsFromClass(stream)
+			}
+			finally {
+				stream.close
+			}
+		}
+
+		it("should not be accepted if the archive contains Java classes compiled in Java version 9") {
+			val file = new ZipFile(getClass.getResource("java9-compiled.jar").getPath)
+			val entry = file.getEntry("Main.class")
+			val stream = file.getInputStream(entry)
+
+			try {
+				an [IllegalArgumentException] should be thrownBy AsmVisitors.parseMethodsFromClass(stream)
+			}
+			finally {
+				stream.close
+			}
+		}
+	}
+}