Test for DW directive with strings (#228)

src/test/java/net/simon987/mar/server/assembly/DwDirectiveTest.java

@@ -0,0 +1,23 @@
+package net.simon987.mar.server.assembly;
+
+import net.simon987.mar.server.TestExecutionResult;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class DwDirectiveTest {
+    @Test
+    public void dwStringWikiExample() {
+        String code = "" +
+                "my_str: DW \"Hello\"  \n" +
+                ".text                 \n" +
+                "MOV A, [my_str]       \n" +
+                "brk                   \n";
+
+        TestExecutionResult res = TestHelper.executeCode(code);
+
+        assertTrue(res.ar.exceptions.isEmpty());
+        assertEquals('H', res.regValue("A"));
+    }
+}