1 files changed, 74 insertions, 0 deletions

diff --git a/test/uk/ac/ox/cs/pagoda/util/TestUtil.java b/test/uk/ac/ox/cs/pagoda/util/TestUtil.java
new file mode 100644
index 0000000..c3909d5
--- /dev/null
+++ b/test/uk/ac/ox/cs/pagoda/util/TestUtil.java
@@ -0,0 +1,74 @@
+package uk.ac.ox.cs.pagoda.util;
+
+import org.apache.log4j.Appender;
+import org.apache.log4j.FileAppender;
+import org.apache.log4j.Logger;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Enumeration;
+import java.util.Properties;
+
+import static java.nio.file.StandardCopyOption.REPLACE_EXISTING;
+
+/**
+ * A collection of utility methods for testing.
+ */
+public class TestUtil {
+
+    public static final String CONFIG_FILE = "test.properties";
+
+    private static boolean isConfigLoaded = false;
+    private static Properties config;
+
+    public static Properties getConfig() {
+        if(!isConfigLoaded) {
+            try(InputStream in = TestUtil.class.getClassLoader().getResourceAsStream(CONFIG_FILE)) {
+                config = new java.util.Properties();
+                config.load(in);
+                in.close();
+                isConfigLoaded = true;
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return config;
+    }
+
+    public static String combinePaths(String path1, String path2) {
+        File file1 = new File(path1);
+        File file2 = new File(file1, path2);
+        return file2.getPath();
+    }
+
+    public static void copyFile(String src, String dst) throws IOException {
+        Files.copy(Paths.get(src), Paths.get(dst), REPLACE_EXISTING);
+    }
+
+    /**
+     * Get the log file, which is assumed unique.
+     * */
+    public static String getLogFileName() {
+        Enumeration e = Logger.getRootLogger().getAllAppenders();
+        while (e.hasMoreElements()){
+            Appender app = (Appender)e.nextElement();
+            if (app instanceof FileAppender){
+                return ((FileAppender)app).getFile();
+            }
+        }
+        return null;
+    }
+
+    public static Path getAnswersFilePath(String name) {
+        URL givenAnswersURL = TestUtil.class.getClassLoader()
+                                            .getResource(name);
+        if(givenAnswersURL == null) throw new RuntimeException("Missing answers file:" + name);
+        return Paths.get(givenAnswersURL.getPath());
+    }
+
+}