Merge pull request #79 from broadinstitute/dr_parallel_tests_prototype

fingers crossed!

build.xml

@@ -1442,4 +1442,30 @@
 
         <run-test testtype="${single}" outputdir="${report}/${single}" runfailed="false"/>
     </target>
+
+    <!-- A target that runs a test without doing ANY compilation or any extra work at all -->
+    <!-- Intended to enable parallel tests that share the same working directory and build -->
+    <target name="runtestonly">
+        <condition property="not.clean">
+            <and>
+                <available file="${build.dir}" />
+                <available file="${lib.dir}" />
+                <available file="${dist.dir}" />
+                <available file="${java.test.classes}" />
+            </and>
+        </condition>
+        <fail message="runtestonly target requires a NON-CLEAN working directory (INCLUDING test classes). Do a full test build using ant test.compile first." unless="not.clean" />
+
+        <condition property="no.single.test.specified">
+            <equals arg1="${single}" arg2="$${single}" />
+        </condition>
+        <fail message="Must specify a specific test. Usage: ant runtestonly -Dsingle=TestClass" if="no.single.test.specified" />
+
+        <property name="testng.classpath" value="testng.default.classpath" />
+        <property name="test.maxmemory" value="${test.default.maxmemory}"/>
+        <property name="include.contracts" value="true" />
+
+        <run-test testtype="${single}" outputdir="${report}/${single}" runfailed="false"/>
+    </target>
+
 </project>