diff --git a/src/main/java/net/sf/jabref/importer/CustomImporter.java b/src/main/java/net/sf/jabref/importer/CustomImporter.java
index e4668770216..b74a6756e7d 100644
--- a/src/main/java/net/sf/jabref/importer/CustomImporter.java
+++ b/src/main/java/net/sf/jabref/importer/CustomImporter.java
@@ -60,13 +60,17 @@ public CustomImporter(List<String> data) {
     }
 
     public CustomImporter(String name, String cliId, String className, String basePath) {
-        super();
+        this();
         this.name = name;
         this.cliId = cliId;
         this.className = className;
         this.basePath = basePath;
     }
 
+    public CustomImporter(ImportFormat importer) {
+        this(importer.getFormatName(), importer.getId(), importer.getClass().getName(), "src/main/java/net/sf/jabref/importer/fileformat/" + importer.getFormatName() + "Importer.java");
+    }
+
     public String getName() {
         return this.name;
     }
@@ -113,7 +117,12 @@ public List<String> getAsStringList() {
 
     @Override
     public boolean equals(Object o) {
-        return (o instanceof CustomImporter) && this.getName().equals(((CustomImporter) o).getName());
+        boolean equalName = this.getName().equals(((CustomImporter) o).getName());
+        boolean equalCliId = this.getClidId().equals(((CustomImporter) o).getClidId());
+        boolean equalClassName = this.getClassName().equals(((CustomImporter) o).getClassName());
+        boolean equalBasePath = this.getBasePath().equals(((CustomImporter) o).getBasePath());
+
+        return (o instanceof CustomImporter) && equalName && equalCliId && equalClassName && equalBasePath;
     }
 
     @Override
diff --git a/src/test/java/net/sf/jabref/importer/CustomImporterTest.java b/src/test/java/net/sf/jabref/importer/CustomImporterTest.java
new file mode 100644
index 00000000000..478817d7f3d
--- /dev/null
+++ b/src/test/java/net/sf/jabref/importer/CustomImporterTest.java
@@ -0,0 +1,136 @@
+package net.sf.jabref.importer;
+
+import java.io.File;
+import java.util.Arrays;
+import java.util.List;
+
+import net.sf.jabref.Globals;
+import net.sf.jabref.JabRefPreferences;
+import net.sf.jabref.importer.fileformat.BibTeXMLImporter;
+import net.sf.jabref.importer.fileformat.CopacImporter;
+import net.sf.jabref.importer.fileformat.OvidImporter;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertTrue;
+
+public class CustomImporterTest {
+
+    private CustomImporter importer;
+
+    @Before
+    public void setUp() {
+        Globals.prefs = JabRefPreferences.getInstance();
+        importer = new CustomImporter(new CopacImporter());
+    }
+
+    @Test
+    public void testGetName() {
+        assertEquals("Copac", importer.getName());
+    }
+
+    @Test
+    public void testGetCliId() {
+        assertEquals("cpc", importer.getClidId());
+    }
+
+    @Test
+    public void testGetClassName() {
+        assertEquals("net.sf.jabref.importer.fileformat.CopacImporter", importer.getClassName());
+    }
+
+    @Test
+    public void testGetBasePath() {
+        assertEquals("src/main/java/net/sf/jabref/importer/fileformat/CopacImporter.java", importer.getBasePath());
+    }
+
+    @Test
+    public void testGetInstance() throws Exception {
+        assertEquals(new CopacImporter(), importer.getInstance());
+    }
+
+    @Test
+    public void testGetFileFromBasePath() {
+        assertEquals(new File("src/main/java/net/sf/jabref/importer/fileformat/CopacImporter.java"), importer.getFileFromBasePath());
+    }
+
+    @Test
+    public void testGetBasePathUrl() throws Exception {
+        assertEquals(new File("src/main/java/net/sf/jabref/importer/fileformat/CopacImporter.java").toURI().toURL(), importer.getBasePathUrl());
+    }
+
+    @Test
+    public void testGetAsStringList() {
+        assertEquals("Copac", importer.getAsStringList().get(0));
+        assertEquals("cpc", importer.getAsStringList().get(1));
+        assertEquals("net.sf.jabref.importer.fileformat.CopacImporter", importer.getAsStringList().get(2));
+        assertEquals("src/main/java/net/sf/jabref/importer/fileformat/CopacImporter.java", importer.getAsStringList().get(3));
+    }
+
+    @Test
+    public void testEqualsTrue() {
+        assertEquals(importer, importer);
+    }
+
+    @Test
+    public void testEqualsFalse() {
+        assertNotEquals(new CopacImporter(), importer);
+    }
+
+    @Test
+    public void testCompareToSmaller() {
+        CustomImporter ovidImporter = new CustomImporter(new OvidImporter());
+
+        assertTrue(importer.compareTo(ovidImporter) < 0);
+    }
+
+    @Test
+    public void testCompareToGreater() {
+        CustomImporter bibtexmlImporter = new CustomImporter(new BibTeXMLImporter());
+        CustomImporter ovidImporter = new CustomImporter(new OvidImporter());
+
+        assertTrue(ovidImporter.compareTo(bibtexmlImporter) > 0);
+    }
+
+    @Test
+    public void testCompareToEven() {
+        assertEquals(0, importer.compareTo(importer));
+    }
+
+    @Test
+    public void testToString() {
+        assertEquals("Copac", importer.toString());
+    }
+
+    @Test
+    public void testClassicConstructor() {
+        CustomImporter customImporter = new CustomImporter("Copac", "cpc", "net.sf.jabref.importer.fileformat.CopacImporter", "src/main/java/net/sf/jabref/importer/fileformat/CopacImporter.java");
+
+        assertEquals(importer, customImporter);
+    }
+
+    @Test
+    public void testListConstructor() {
+        List<String> dataTest = Arrays.asList("Ovid", "ovid", "net.sf.jabref.importer.fileformat.OvidImporter", "src/main/java/net/sf/jabref/importer/fileformat/OvidImporter.java");
+        CustomImporter customImporter = new CustomImporter(dataTest);
+        CustomImporter customOvidImporter = new CustomImporter(new OvidImporter());
+
+        assertEquals(customImporter, customOvidImporter);
+    }
+
+    @Test
+    public void testEmptyConstructor() {
+        CustomImporter customImporter = new CustomImporter();
+        customImporter.setName("Ovid");
+        customImporter.setCliId("ovid");
+        customImporter.setClassName("net.sf.jabref.importer.fileformat.OvidImporter");
+        customImporter.setBasePath("src/main/java/net/sf/jabref/importer/fileformat/OvidImporter.java");
+
+        CustomImporter customOvidImporter = new CustomImporter(new OvidImporter());
+
+        assertEquals(customImporter, customOvidImporter);
+    }
+}