Added test for synthetic benchmark runs

Theres a test for running a benchmark based on a trace
and one from trace benchmarks loaded from a CSV data

core/src/test/java/SyntheticBenchmarkRunnerTest.java

@@ -2,12 +2,17 @@ import org.junit.Assert;
 import org.junit.Test;
 import se.lth.cs.SyntheticBenchmarkGeneration.ListSyntheticBenchmarkGenerator;
 import se.lth.cs.SyntheticBenchmarkRunner;
+import se.lth.cs.TraceLoader;
 import se.lth.cs.TrainingSetValue;
+import se.lth.cs.bcgen.BCBenchmarkPackage;
 
+import java.io.StringReader;
 import java.lang.reflect.InvocationTargetException;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 public class SyntheticBenchmarkRunnerTest {
     @Test
@@ -24,4 +29,48 @@ public class SyntheticBenchmarkRunnerTest {
         Assert.assertEquals(3, histogram.keySet().size());
         Assert.assertTrue( histogram.values().stream().min(Long::compareTo).orElse(0l) >= threshold);
     }
+
+    @Test
+    public void testRunningTrace() throws InvocationTargetException, IllegalAccessException {
+        List<String> commands = new ArrayList<>();
+        commands.add("runAdd");
+        commands.add("runAdd");
+        commands.add("runAdd");
+        commands.add("runAdd");
+        commands.add("runAdd");
+
+        // We would like to generate one benchmark for each collection that we
+        // know of, and give them all to the benchmarks
+        BCBenchmarkPackage<List<Object>> benchmark = BCBenchmarkPackage.LIST(
+                "Trace1", commands, new ArrayList<>());
+
+        SyntheticBenchmarkRunner runner = new SyntheticBenchmarkRunner();
+        List<TrainingSetValue> results = runner.runBenchmarks(List.of(benchmark));
+        TrainingSetValue v = results.get(0);
+        Assert.assertTrue(v.getAverage() > 0);
+        // Sanity check
+        Assert.assertTrue(Math.sqrt(v.getVariance()) < v.getAverage());
+    }
+
+    @Test
+    public void testBenchmarkTraceLoaded() throws IllegalAccessException, InstantiationException, ClassNotFoundException {
+        TraceLoader tl = new TraceLoader();
+        String text = ",id,location,target_type,method,step\n" +
+                // Same id, different location
+                "1,1,loc1,java.util.LinkedList,boolean add(E),1\n" +
+                "2,1,loc1,java.util.LinkedList,boolean add(E),2\n" +
+                "3,2,loc2,java.util.ArrayList,boolean add(E),1\n" +
+                "4,2,loc2,java.util.ArrayList,boolean add(E),2\n" +
+                "5,3,loc3,java.util.HashSet,boolean add(E),1\n" +
+                "6,3,loc3,java.util.HashSet,boolean add(E),2\n";
+        Stream<BCBenchmarkPackage<?>> benchmarks = tl.readCsv(
+                new StringReader(text), false);
+
+        SyntheticBenchmarkRunner runner = new SyntheticBenchmarkRunner();
+        List<TrainingSetValue> results = runner.runBenchmarks(benchmarks.collect(Collectors.toList()));
+        Assert.assertEquals(3, results.size());
+        Assert.assertEquals("java.util.LinkedList", results.get(0).getBestDataStructure());
+        Assert.assertEquals("java.util.ArrayList", results.get(1).getBestDataStructure());
+        Assert.assertEquals("java.util.HashSet", results.get(2).getBestDataStructure());
+    }
 }