Added test for ngram similarity

Author: tdebatty

src/test/java/info/debatty/java/stringsimilarity/NGramTest.java

@@ -0,0 +1,51 @@
+/*
+ * The MIT License
+ *
+ * Copyright 2016 Thibault Debatty.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package info.debatty.java.stringsimilarity;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ *
+ * @author Thibault Debatty
+ */
+public class NGramTest {
+
+    /**
+     * Test of distance method, of class NGram.
+     */
+    @Test
+    public void testDistance() {
+        System.out.println("distance");
+        String s0 = "ABABABAB";
+        String s1 = "ABCABCABCABC";
+        String s2 = "POIULKJH";
+        NGram ngram = new NGram();
+        System.out.println(ngram.distance(s0, s1));
+        System.out.println(ngram.distance(s0, s2));
+        Assert.assertTrue(ngram.distance(s0, s1) < ngram.distance(s0, s2));
+    }
+
+}