1 files changed, 64 insertions, 0 deletions
diff --git a/java9/src/test/java/io/perfmark/java9/VarHandleMarkHolderTest.java b/java9/src/test/java/io/perfmark/java9/VarHandleMarkHolderTest.java
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+++ b/java9/src/test/java/io/perfmark/java9/VarHandleMarkHolderTest.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2019 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.perfmark.java9;
+
+import static org.junit.Assert.assertEquals;
+
+import io.perfmark.impl.Generator;
+import io.perfmark.impl.Mark;
+import io.perfmark.impl.MarkHolder;
+import io.perfmark.testing.MarkHolderTest;
+import java.util.List;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+@RunWith(JUnit4.class)
+public class VarHandleMarkHolderTest extends MarkHolderTest {
+
+  private final long gen = 1L << Generator.GEN_OFFSET;
+
+  @Override
+  protected MarkHolder getMarkHolder() {
+    return new VarHandleMarkHolder();
+  }
+
+  @Test
+  public void read_getsAllButLastIfNotWriter() {
+    MarkHolder mh = getMarkHolder();
+    int events = mh.maxMarks() - 1;
+    for (int i = 0; i < events; i++) {
+      mh.start(gen, "task", 3);
+    }
+
+    List<Mark> marks = mh.read(true);
+    assertEquals(events - 1, marks.size());
+  }
+
+  @Test
+  public void read_getsAllIfNotWriterButNoWrap() {
+    MarkHolder mh = getMarkHolder();
+
+    int events = mh.maxMarks() - 2;
+    for (int i = 0; i < events; i++) {
+      mh.start(gen, "task", 3);
+    }
+
+    List<Mark> marks = mh.read(true);
+    assertEquals(events, marks.size());
+  }
+}