1 files changed, 65 insertions, 0 deletions
diff --git a/javatests/com/google/setfilters/cuckoofilter/SemiSortedCuckooFilterTableTest.java b/javatests/com/google/setfilters/cuckoofilter/SemiSortedCuckooFilterTableTest.java
new file mode 100644
index 0000000..91eba4f
--- /dev/null
+++ b/javatests/com/google/setfilters/cuckoofilter/SemiSortedCuckooFilterTableTest.java
@@ -0,0 +1,65 @@
+// Copyright 2022 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
+//
+//    https://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 com.google.setfilters.cuckoofilter;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.junit.Assert.assertThrows;
+
+import java.util.Random;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+@RunWith(JUnit4.class)
+public final class SemiSortedCuckooFilterTableTest {
+
+  @Test
+  public void creation_failsWithInvalidBucketCapacity() {
+    String message =
+        assertThrows(
+                IllegalArgumentException.class,
+                () ->
+                    new SemiSortedCuckooFilterTable(
+                        CuckooFilterConfig.Size.newBuilder()
+                            .setBucketCount(100)
+                            .setBucketCapacity(5)
+                            .setFingerprintLength(4)
+                            .build(),
+                        new Random()))
+            .getMessage();
+
+    assertThat(message)
+        .isEqualTo("SemiSortedCuckooFilterTable only supports bucket capacity of 4.");
+  }
+
+  @Test
+  public void creation_failsWithInvalidFingerprintLength() {
+    String message =
+        assertThrows(
+                IllegalArgumentException.class,
+                () ->
+                    new SemiSortedCuckooFilterTable(
+                        CuckooFilterConfig.Size.newBuilder()
+                            .setBucketCount(100)
+                            .setBucketCapacity(4)
+                            .setFingerprintLength(3)
+                            .build(),
+                        new Random()))
+            .getMessage();
+
+    assertThat(message)
+        .isEqualTo("SemiSortedCuckooFilterTable only supports fingerprint length >= 4.");
+  }
+}