Add currently failing tests for issue jknack#686

Author: yohannrub

handlebars/src/test/java/com/github/jknack/handlebars/issues/Issue686.java

@@ -0,0 +1,36 @@
+package com.github.jknack.handlebars.issues;
+
+import com.github.jknack.handlebars.Handlebars;
+import com.github.jknack.handlebars.cache.ConcurrentMapTemplateCache;
+import com.github.jknack.handlebars.io.StringTemplateSource;
+import com.github.jknack.handlebars.io.TemplateSource;
+import com.github.jknack.handlebars.io.URLTemplateSource;
+import org.junit.Test;
+
+import java.io.IOException;
+
+import static org.junit.Assert.assertEquals;
+
+public class Issue686 {
+
+    @Test
+    public void compileStringsWithSameHashCode() throws IOException {
+        Handlebars handlebars = new Handlebars().with(new ConcurrentMapTemplateCache());
+
+        // Strings "Aa" and "BB" have same hashCode
+        assertEquals("Aa", handlebars.compileInline("Aa").apply(new Object()));
+        assertEquals("BB", handlebars.compileInline("BB").apply(new Object()));
+    }
+
+    @Test
+    public void compileTemplateSourcesWithSameFilename() throws IOException {
+        Handlebars handlebars = new Handlebars().with(new ConcurrentMapTemplateCache());
+
+        TemplateSource stringTemplateSource = new StringTemplateSource("filename", "string");
+        TemplateSource urlTemplateSource = new URLTemplateSource("filename", getClass().getResource(
+                "/template.hbs"));
+
+        assertEquals("string", handlebars.compile(stringTemplateSource).apply(new Object()));
+        assertEquals("template.hbs", handlebars.compile(urlTemplateSource).apply(new Object()));
+    }
+}