Adds a test-case (incomplete)

cottontaildb-dbms/src/test/kotlin/org/vitrivr/cottontail/dbms/index/deg/InMemoryDEGTest.kt

@@ -0,0 +1,35 @@
+package org.vitrivr.cottontail.dbms.index.deg
+
+import org.junit.jupiter.api.Test
+import org.vitrivr.cottontail.core.database.TupleId
+import org.vitrivr.cottontail.core.queries.functions.math.distance.binary.EuclideanDistance
+import org.vitrivr.cottontail.core.types.Types
+import org.vitrivr.cottontail.core.values.FloatVectorValue
+import org.vitrivr.cottontail.core.values.generators.FloatVectorValueGenerator
+import org.vitrivr.cottontail.dbms.index.diskann.graph.InMemoryDynamicExplorationGraph
+import org.vitrivr.cottontail.test.TestConstants
+import java.util.*
+
+class InMemoryDEGTest {
+
+    private val random = SplittableRandom()
+
+
+    @Test
+    public fun testWithFloatVector() {
+        val size = random.nextInt(256)
+        val type = Types.FloatVector(size)
+        val distance = EuclideanDistance.FloatVector(type)
+        val list = LinkedList<FloatVectorValue>()
+        val graph = InMemoryDynamicExplorationGraph<TupleId, FloatVectorValue>(30) { v1, v2 -> distance.invoke(v1, v2).value.toFloat() }
+
+        /* Build graph. */
+        repeat(TestConstants.TEST_COLLECTION_SIZE) { it ->
+            val next = FloatVectorValueGenerator.random(size, this.random)
+            list.add(next)
+            graph.index(it.toLong(), next)
+        }
+
+        println("Done")
+    }
+}