added weights path tests

src/test/java/de/monticore/lang/monticar/cnnarch/generator/WeightsPathConfigParserTest.java

+/* (c) https://github.com/MontiCore/monticore */
+package de.monticore.lang.monticar.cnnarch.generator;
+
+import de.monticore.lang.monticar.cnnarch._symboltable.*;
+import de.monticore.lang.monticar.cnnarch.predefined.AllPredefinedVariables;
+import de.monticore.symboltable.Scope;
+import de.se_rwth.commons.logging.Log;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+public class WeightsPathConfigParserTest extends AbstractSymtabTest {
+
+    @Before
+    public void setUp() {
+        // ensure an empty log
+        Log.getFindings().clear();
+        Log.enableFailQuick(false);
+    }
+
+    @Test
+    public void testWeightsPathConfigParserValidComponent() {
+        WeightsPathConfigParser parser = new WeightsPathConfigParser("src/test/resources/architectures/weights_paths.txt");
+
+        String weights_path = parser.getWeightsPath("ComponentName");
+        assertTrue("Wrong weights path returned", weights_path.equals("/path/to/training/weights"));
+    }
+
+    @Test
+    public void testWeightsPathConfigParserInvalidComponent() {
+        WeightsPathConfigParser parser = new WeightsPathConfigParser("src/test/resources/architectures/weights_paths.txt");
+
+        String weights_path = parser.getWeightsPath("NotExistingComponent");
+        assertTrue("For not listed components, null should be returned", weights_path == null);
+        assertTrue(Log.getFindings().size() == 1);
+    }
+
+    @Test
+    public void testWeightsPathConfigParserInvalidPath() {
+        WeightsPathConfigParser parser = new WeightsPathConfigParser("invalid/path/weights_paths.txt");
+
+        assertTrue(Log.getFindings().size() == 1);
+    }
+}