1 files changed, 79 insertions, 0 deletions
diff --git a/src/test/java/com/thinkaurelius/titan/diskstorage/cassandra/CassandraTransactionTest.java b/src/test/java/com/thinkaurelius/titan/diskstorage/cassandra/CassandraTransactionTest.java
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--- /dev/null
+++ b/src/test/java/com/thinkaurelius/titan/diskstorage/cassandra/CassandraTransactionTest.java
@@ -0,0 +1,79 @@
+package com.thinkaurelius.titan.diskstorage.cassandra;
+
+import com.google.common.base.Preconditions;
+import com.thinkaurelius.titan.diskstorage.BaseTransactionConfig;
+import com.thinkaurelius.titan.diskstorage.configuration.ModifiableConfiguration;
+import com.thinkaurelius.titan.diskstorage.util.StandardBaseTransactionConfig;
+import com.thinkaurelius.titan.diskstorage.util.time.TimestampProviders;
+import com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration;
+import org.junit.Test;
+
+import static com.thinkaurelius.titan.diskstorage.cassandra.AbstractCassandraStoreManager.CASSANDRA_READ_CONSISTENCY;
+import static com.thinkaurelius.titan.diskstorage.cassandra.AbstractCassandraStoreManager.CASSANDRA_WRITE_CONSISTENCY;
+import static org.junit.Assert.*;
+
+public class CassandraTransactionTest {
+
+    /* testRead/WriteConsistencyLevel have unnecessary code duplication
+     * that could be avoided by creating a common helper method that takes
+     * a ConfigOption parameter and a function that converts a
+     * CassandraTransaction to a consistency level by calling either
+     * ct.getReadConsistencyLevel() or .getWriteConsistencyLevel(),
+     * but it doesn't seem worth the complexity.
+     */
+
+    @Test
+    public void testWriteConsistencyLevel() {
+        int levelsChecked = 0;
+
+        // Test whether CassandraTransaction honors the write consistency level option
+        for (CLevel writeLevel : CLevel.values()) {
+            StandardBaseTransactionConfig.Builder b = new StandardBaseTransactionConfig.Builder();
+            ModifiableConfiguration mc = GraphDatabaseConfiguration.buildGraphConfiguration();
+            mc.set(CASSANDRA_WRITE_CONSISTENCY, writeLevel.name());
+            b.customOptions(mc);
+            b.timestampProvider(TimestampProviders.MICRO);
+            CassandraTransaction ct = new CassandraTransaction(b.build());
+            assertEquals(writeLevel, ct.getWriteConsistencyLevel());
+            levelsChecked++;
+        }
+
+        // Sanity check: if CLevel.values was empty, something is wrong with the test
+        Preconditions.checkState(0 < levelsChecked);
+    }
+
+    @Test
+    public void testReadConsistencyLevel() {
+        int levelsChecked = 0;
+
+        // Test whether CassandraTransaction honors the write consistency level option
+        for (CLevel writeLevel : CLevel.values()) {
+            StandardBaseTransactionConfig.Builder b = new StandardBaseTransactionConfig.Builder();
+            ModifiableConfiguration mc = GraphDatabaseConfiguration.buildGraphConfiguration();
+            mc.set(CASSANDRA_READ_CONSISTENCY, writeLevel.name());
+            b.timestampProvider(TimestampProviders.MICRO);
+            b.customOptions(mc);
+            CassandraTransaction ct = new CassandraTransaction(b.build());
+            assertEquals(writeLevel, ct.getReadConsistencyLevel());
+            levelsChecked++;
+        }
+
+        // Sanity check: if CLevel.values was empty, something is wrong with the test
+        Preconditions.checkState(0 < levelsChecked);
+    }
+
+    @Test
+    public void testTimestampProvider() {
+        BaseTransactionConfig txcfg = StandardBaseTransactionConfig.of(TimestampProviders.NANO);
+        CassandraTransaction ct = new CassandraTransaction(txcfg);
+        assertEquals(TimestampProviders.NANO, ct.getConfiguration().getTimestampProvider());
+
+        txcfg = StandardBaseTransactionConfig.of(TimestampProviders.MICRO);
+        ct = new CassandraTransaction(txcfg);
+        assertEquals(TimestampProviders.MICRO, ct.getConfiguration().getTimestampProvider());
+
+        txcfg = StandardBaseTransactionConfig.of(TimestampProviders.MILLI);
+        ct = new CassandraTransaction(txcfg);
+        assertEquals(TimestampProviders.MILLI, ct.getConfiguration().getTimestampProvider());
+    }
+}