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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.document.predicate;
import org.junit.Test;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* @author <a href="mailto:simon@yahoo-inc.com">Simon Thoresen Hult</a>
*/
public class FeatureSetTest {
@Test
public void requireThatFeatureSetIsAValue() {
assertTrue(PredicateValue.class.isAssignableFrom(FeatureSet.class));
}
@Test
public void requireThatAccessorsWork() {
FeatureSet node = new FeatureSet("key", "valueA", "valueB");
assertEquals("key", node.getKey());
assertValues(Arrays.asList("valueA", "valueB"), node);
node.addValue("valueC");
assertValues(Arrays.asList("valueA", "valueB", "valueC"), node);
node.addValues(Arrays.asList("valueD", "valueE"));
assertValues(Arrays.asList("valueA", "valueB", "valueC", "valueD", "valueE"), node);
node.setValues(Arrays.asList("valueF", "valueG"));
assertValues(Arrays.asList("valueF", "valueG"), node);
}
@Test
public void requireThatValueSetIsMutable() {
FeatureSet node = new FeatureSet("key");
node.getValues().add("valueA");
assertValues(Arrays.asList("valueA"), node);
node = new FeatureSet("key", "valueA");
node.getValues().add("valueB");
assertValues(Arrays.asList("valueA", "valueB"), node);
}
@Test
public void requireThatConstructorsWork() {
FeatureSet node = new FeatureSet("key", "valueA", "valueB");
assertEquals("key", node.getKey());
assertValues(Arrays.asList("valueA", "valueB"), node);
node = new FeatureSet("key", Arrays.asList("valueA", "valueB"));
assertEquals("key", node.getKey());
assertValues(Arrays.asList("valueA", "valueB"), node);
}
@Test
public void requireThatCloneIsImplemented() throws CloneNotSupportedException {
FeatureSet node1 = new FeatureSet("key", "valueA", "valueB");
FeatureSet node2 = node1.clone();
assertEquals(node1, node2);
assertNotSame(node1, node2);
assertNotSame(node1.getValues(), node2.getValues());
}
@Test
public void requireThatHashCodeIsImplemented() {
assertEquals(new FeatureSet("key").hashCode(), new FeatureSet("key").hashCode());
}
@Test
public void requireThatEqualsIsImplemented() {
FeatureSet lhs = new FeatureSet("keyA", "valueA", "valueB");
assertTrue(lhs.equals(lhs));
assertFalse(lhs.equals(new Object()));
FeatureSet rhs = new FeatureSet("keyB");
assertFalse(lhs.equals(rhs));
rhs.setKey("keyA");
assertFalse(lhs.equals(rhs));
rhs.addValue("valueA");
assertFalse(lhs.equals(rhs));
rhs.addValue("valueB");
assertTrue(lhs.equals(rhs));
}
@Test
public void requireThatkeyIsMandatoryInConstructor() {
try {
new FeatureSet(null);
fail();
} catch (NullPointerException e) {
assertEquals("key", e.getMessage());
}
try {
new FeatureSet(null, Collections.<String>emptyList());
fail();
} catch (NullPointerException e) {
assertEquals("key", e.getMessage());
}
}
@Test
public void requireThatkeyIsMandatoryInSetter() {
FeatureSet node = new FeatureSet("foo");
try {
node.setKey(null);
fail();
} catch (NullPointerException e) {
assertEquals("key", e.getMessage());
}
assertEquals("foo", node.getKey());
}
@Test
public void requireThatValueIsMandatoryInSetter() {
FeatureSet node = new FeatureSet("foo", "bar");
try {
node.addValue(null);
fail();
} catch (NullPointerException e) {
assertEquals("value", e.getMessage());
}
assertValues(Arrays.asList("bar"), node);
}
@Test
public void requireThatKeyIsEscapedInToString() {
assertEquals("foo in [val]",
new FeatureSet("foo", "val").toString());
assertEquals("'\\foo' in [val]",
new FeatureSet("\foo", "val").toString());
assertEquals("'\\x27foo\\x27' in [val]",
new FeatureSet("'foo'", "val").toString());
}
@Test
public void requireThatValuesAreEscapedInToString() {
assertEquals("key in [bar, foo]",
new FeatureSet("key", "foo", "bar").toString());
assertEquals("key in ['\\foo', 'ba\\r']",
new FeatureSet("key", "\foo", "ba\r").toString());
assertEquals("key in ['\\x27bar\\x27', '\\x27foo\\x27']",
new FeatureSet("key", "'foo'", "'bar'").toString());
}
@Test
public void requireThatSimpleStringsArePrettyPrinted() {
assertEquals("foo in [bar]",
new FeatureSet("foo", "bar").toString());
}
@Test
public void requireThatComplexStringsAreEscaped() {
assertEquals("'\\foo' in ['ba\\r']",
new FeatureSet("\foo", "ba\r").toString());
}
@Test
public void requireThatNegatedFeatureSetsArePrettyPrinted() {
assertEquals("country not in [no, se]",
new Negation(new FeatureSet("country", "no", "se")).toString());
}
private static void assertValues(Collection<String> expected, FeatureSet actual) {
List<String> tmp = new ArrayList<>(expected);
for (String value : actual.getValues()) {
assertNotNull(value, tmp.remove(value));
}
assertTrue(tmp.toString(), tmp.isEmpty());
}
}
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