add-tests Added tests that cover previously uncovered logic.
diff --git a/src/test/java/com/fasterxml/jackson/core/VersionTest.java b/src/test/java/com/fasterxml/jackson/core/VersionTest.java
new file mode 100644
index 0000000..2e2d5a0
--- /dev/null
+++ b/src/test/java/com/fasterxml/jackson/core/VersionTest.java
@@ -0,0 +1,55 @@
+package com.fasterxml.jackson.core;
+
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+/**
+ * Unit tests for class {@link Version}.
+ *
+ * @date 2017-08-01
+ * @see Version
+ *
+ **/
+public class VersionTest{
+
+  @Test
+  public void testCompareToOne() {
+      Version version = Version.unknownVersion();
+      Version versionTwo = new Version(0, (-263), (-1820), "");
+
+      assertEquals(263, version.compareTo(versionTwo));
+  }
+
+  @Test
+  public void testCompareToReturningZero() {
+      Version version = Version.unknownVersion();
+      Version versionTwo = new Version(0, 0, 0, "");
+
+      assertEquals(0, version.compareTo(versionTwo));
+  }
+
+  @Test
+  public void testCreatesVersionTaking6ArgumentsAndCallsCompareTo() {
+      Version version = new Version(0, 0, 0, null, null, "");
+      Version versionTwo = new Version(0, 0, 0, "", "", "//0.0.0");
+
+      assertTrue(version.compareTo(versionTwo) < 0);
+  }
+
+  @Test
+  public void testCompareToTwo() {
+      Version version = Version.unknownVersion();
+      Version versionTwo = new Version((-1), 0, 0, "0.0.0");
+
+      assertTrue(version.compareTo(versionTwo) > 0);
+  }
+
+  @Test
+  public void testCompareToAndCreatesVersionTaking6ArgumentsAndUnknownVersion() {
+      Version version = Version.unknownVersion();
+      Version versionTwo = new Version(0, 0, 0, "//0.0.0", "//0.0.0", "");
+
+      assertTrue(version.compareTo(versionTwo) < 0);
+  }
+
+}
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