1 files changed, 131 insertions, 0 deletions
diff --git a/core/src/test/java/org/elasticsearch/search/suggest/completion/FuzzyOptionsTests.java b/core/src/test/java/org/elasticsearch/search/suggest/completion/FuzzyOptionsTests.java
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+++ b/core/src/test/java/org/elasticsearch/search/suggest/completion/FuzzyOptionsTests.java
@@ -0,0 +1,131 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch licenses this file to you 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 org.elasticsearch.search.suggest.completion;
+
+import org.elasticsearch.common.io.stream.StreamInput;
+import org.elasticsearch.common.unit.Fuzziness;
+
+import java.io.IOException;
+
+public class FuzzyOptionsTests extends WritableTestCase<FuzzyOptions> {
+
+    public static FuzzyOptions randomFuzzyOptions() {
+        final FuzzyOptions.Builder builder = FuzzyOptions.builder();
+        if (randomBoolean()) {
+            maybeSet(builder::setFuzziness, randomFrom(Fuzziness.ZERO, Fuzziness.ONE, Fuzziness.TWO));
+        } else {
+            maybeSet(builder::setFuzziness, randomFrom(0, 1, 2));
+        }
+        maybeSet(builder::setFuzzyMinLength, randomIntBetween(0, 10));
+        maybeSet(builder::setFuzzyPrefixLength, randomIntBetween(0, 10));
+        maybeSet(builder::setMaxDeterminizedStates, randomIntBetween(1, 1000));
+        maybeSet(builder::setTranspositions, randomBoolean());
+        maybeSet(builder::setUnicodeAware, randomBoolean());
+        return builder.build();
+    }
+
+    @Override
+    protected FuzzyOptions createTestModel() {
+        return randomFuzzyOptions();
+    }
+
+    @Override
+    protected FuzzyOptions createMutation(FuzzyOptions original) throws IOException {
+        final FuzzyOptions.Builder builder = FuzzyOptions.builder();
+        builder.setFuzziness(original.getEditDistance())
+            .setFuzzyPrefixLength(original.getFuzzyPrefixLength())
+            .setFuzzyMinLength(original.getFuzzyMinLength())
+            .setMaxDeterminizedStates(original.getMaxDeterminizedStates())
+            .setTranspositions(original.isTranspositions())
+            .setUnicodeAware(original.isUnicodeAware());
+        switch (randomIntBetween(0, 5)) {
+            case 0:
+                builder.setFuzziness(randomValueOtherThan(original.getEditDistance(), () -> randomFrom(0, 1, 2)));
+                break;
+            case 1:
+                builder.setFuzzyPrefixLength(randomValueOtherThan(original.getFuzzyPrefixLength(), () ->
+                    randomIntBetween(1, 3)));
+                break;
+            case 2:
+                builder.setFuzzyMinLength(randomValueOtherThan(original.getFuzzyMinLength(), () ->
+                    randomIntBetween(1, 3)));
+                break;
+            case 3:
+                builder.setMaxDeterminizedStates(randomValueOtherThan(original.getMaxDeterminizedStates(), () ->
+                    randomIntBetween(1, 10)));
+                break;
+            case 4:
+                builder.setTranspositions(!original.isTranspositions());
+                break;
+            case 5:
+                builder.setUnicodeAware(!original.isUnicodeAware());
+                break;
+        }
+        return builder.build();
+    }
+
+    @Override
+    protected FuzzyOptions readFrom(StreamInput in) throws IOException {
+        return FuzzyOptions.readFuzzyOptions(in);
+    }
+
+    public void testIllegalArguments() {
+        final FuzzyOptions.Builder builder = FuzzyOptions.builder();
+        try {
+            builder.setFuzziness(-randomIntBetween(1, Integer.MAX_VALUE));
+            fail("fuzziness must be > 0");
+        } catch (IllegalArgumentException e) {
+            assertEquals(e.getMessage(), "fuzziness must be between 0 and 2");
+        }
+        try {
+            builder.setFuzziness(randomIntBetween(3, Integer.MAX_VALUE));
+            fail("fuzziness must be < 2");
+        } catch (IllegalArgumentException e) {
+            assertEquals(e.getMessage(), "fuzziness must be between 0 and 2");
+        }
+        try {
+            builder.setFuzziness(null);
+            fail("fuzziness must not be null");
+        } catch (NullPointerException e) {
+            assertEquals(e.getMessage(), "fuzziness must not be null");
+        }
+
+        try {
+            builder.setFuzzyMinLength(-randomIntBetween(1, Integer.MAX_VALUE));
+            fail("fuzzyMinLength must be >= 0");
+        } catch (IllegalArgumentException e) {
+            assertEquals(e.getMessage(), "fuzzyMinLength must not be negative");
+        }
+
+        try {
+            builder.setFuzzyPrefixLength(-randomIntBetween(1, Integer.MAX_VALUE));
+            fail("fuzzyPrefixLength must be >= 0");
+        } catch (IllegalArgumentException e) {
+            assertEquals(e.getMessage(), "fuzzyPrefixLength must not be negative");
+        }
+
+        try {
+            builder.setMaxDeterminizedStates(-randomIntBetween(1, Integer.MAX_VALUE));
+            fail("max determinized state must be >= 0");
+        } catch (IllegalArgumentException e) {
+            assertEquals(e.getMessage(), "maxDeterminizedStates must not be negative");
+        }
+    }
+}