Merge pull request #449 from PaulaRudy/issue316

Issue316: make a test for ALL the steps to ensure backwards compatibility.

Author: JLLeitschuh

core/src/test/java/edu/wpi/grip/core/serialization/CompatibilityTest.java

@@ -0,0 +1,81 @@
+package edu.wpi.grip.core.serialization;
+
+import com.google.common.eventbus.EventBus;
+import com.google.inject.Guice;
+import com.google.inject.Injector;
+import edu.wpi.grip.core.GRIPCoreModule;
+import edu.wpi.grip.core.Pipeline;
+import edu.wpi.grip.core.operations.Operations;
+import edu.wpi.grip.core.settings.ProjectSettings;
+import edu.wpi.grip.generated.CVOperations;
+import edu.wpi.grip.util.Files;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.*;
+import java.net.URI;
+
+import static junit.framework.TestCase.assertEquals;
+
+/**
+ * This tests for backwards compatibility by opening a project file containing ALL the steps of GRIP
+ * at the time of this file's creation. Please note that this test requires a webcam at position 0.
+ */
+public class CompatibilityTest {
+
+    private static final URI testphotoURI = Files.testphotoURI; //The location of the photo source for the test
+    private static final URI testprojectURI = Files.testprojectURI; //The location of the save file for the test
+
+    private Pipeline pipeline;
+    private Project project;
+    private ProjectSettings settings;
+
+    private EventBus eventBus;
+
+    @Before
+    public void setUp() throws Exception {
+
+        //Set up the stuff we need for the core functionality for GRIP
+        final Injector injector = Guice.createInjector(new GRIPCoreModule());
+
+        eventBus = injector.getInstance(EventBus.class);
+        pipeline = injector.getInstance(Pipeline.class);
+        project = injector.getInstance(Project.class);
+        settings = injector.getInstance(ProjectSettings.class);
+
+        //Add the operations so that GRIP will recognize them
+        Operations.addOperations(eventBus);
+        CVOperations.addOperations(eventBus);
+
+        //Set up the test project file to work with this machine
+        String fileName = testprojectURI.toString().substring(5);
+        String photoFileName = testphotoURI.toString().substring(5);
+
+        //Open the project save file and read it into a string so that we can alter it
+        File file = new File(fileName);
+
+        Reader temp = new FileReader(file);
+        BufferedReader reader = new BufferedReader(temp);
+        String line = "", oldtext = "";
+        while ((line = reader.readLine()) != null) {
+            oldtext += line + "\r\n";
+        }
+        reader.close();
+        String newtext = oldtext.replaceAll("REPLACEME", photoFileName);//This gives the correct location of the test photo needed to the project file
+
+        //Write the altered project file text
+        FileWriter writer2 = new FileWriter(file);
+        writer2.write(newtext);
+
+        writer2.close();
+
+        //Open the test file as a project
+        project.open(file);
+    }
+
+    @Test
+    public void testFoo() throws Exception {
+        assertEquals("The expected number of steps were not found", 50, pipeline.getSteps().size());
+        assertEquals("The expected number of sources were not found", 2, pipeline.getSources().size());
+    }
+}

core/src/test/java/edu/wpi/grip/util/Files.java

@@ -1,6 +1,7 @@
 package edu.wpi.grip.util;
 
 import java.io.File;
+import java.net.URI;
 import java.net.URISyntaxException;
 
 /**
@@ -9,6 +10,8 @@
 public class Files {
     public static final ImageWithData imageFile, gompeiJpegFile;
     public static final File textFile;
+    public static final URI testphotoURI, testprojectURI;
+
 
     static {
         try {
@@ -17,6 +20,9 @@ public class Files {
                     Files.class.getResource("/edu/wpi/grip/images/GRIP_Logo.png").toURI()), 183, 480);
             gompeiJpegFile = new ImageWithData(new File(
                     Files.class.getResource("/edu/wpi/grip/images/gompei.jpeg").toURI()), 220, 225);
+            testphotoURI =   Files.class.getResource("/edu/wpi/grip/images/testphoto.png").toURI();
+            testprojectURI =   Files.class.getResource("/edu/wpi/grip/projects/testALL.grip").toURI();
+
         } catch (URISyntaxException e) {
             throw new IllegalStateException("Could not load file from system", e);
         }