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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.indexinglanguage.expressions;
import com.yahoo.document.DataType;
import com.yahoo.document.Field;
import com.yahoo.document.datatypes.*;
import com.yahoo.vespa.indexinglanguage.SimpleTestAdapter;
import org.junit.Test;
import java.util.Arrays;
import static org.junit.Assert.*;
/**
* @author Simon Thoresen Hult
*/
@SuppressWarnings({ "rawtypes" })
public class CatTestCase {
@Test
public void requireThatAccessorsWork() {
Expression foo = new AttributeExpression("foo");
Expression bar = new AttributeExpression("bar");
CatExpression exp = new CatExpression(foo, bar);
assertEquals(2, exp.size());
assertSame(foo, exp.get(0));
assertSame(bar, exp.get(1));
assertEquals(Arrays.asList(foo, bar), exp.asList());
}
@Test
public void requireThatHashCodeAndEqualsAreImplemented() {
Expression foo = new AttributeExpression("foo");
Expression bar = new AttributeExpression("bar");
Expression exp = new CatExpression(foo, bar);
assertFalse(exp.equals(new Object()));
assertFalse(exp.equals(new StatementExpression(foo, bar)));
assertFalse(exp.equals(new CatExpression()));
assertFalse(exp.equals(new CatExpression(foo)));
assertFalse(exp.equals(new CatExpression(bar, foo)));
assertEquals(exp, new CatExpression(foo, bar));
assertEquals(exp.hashCode(), new CatExpression(foo, bar).hashCode());
}
@Test
public void requireThatExpressionCanBeVerified() {
assertVerify(new ConstantExpression(new StringFieldValue("foo")),
new ConstantExpression(new StringFieldValue("bar")), null);
assertVerify(new SimpleExpression(DataType.STRING),
new SimpleExpression(DataType.STRING), DataType.STRING);
assertVerifyThrows(new SimpleExpression().setCreatedOutput(null),
new SimpleExpression().setCreatedOutput(DataType.STRING), null,
"Attempting to concatenate a null value");
assertVerifyThrows(new SimpleExpression(DataType.STRING),
new SimpleExpression(DataType.INT), null,
"Operands require conflicting input types, string vs int");
assertVerifyThrows(new SimpleExpression(DataType.STRING),
new SimpleExpression(DataType.STRING), null,
"Expected string input, but no input is specified");
assertVerifyThrows(new SimpleExpression(DataType.STRING),
new SimpleExpression(DataType.STRING), DataType.INT,
"Expected string input, got int");
}
@Test
public void requireThatPrimitivesAreConcatenated() {
assertEquals(new StringFieldValue("69"), evaluate(new StringFieldValue("6"), new StringFieldValue("9")));
assertEquals(new StringFieldValue("69"), evaluate(new StringFieldValue("6"), new IntegerFieldValue(9)));
assertEquals(new StringFieldValue("69"), evaluate(new IntegerFieldValue(6), new IntegerFieldValue(9)));
assertEquals(new StringFieldValue("69"), evaluate(new IntegerFieldValue(6), new StringFieldValue("9")));
}
@Test
public void requireThatPrimitivesCanNotBeNull() {
assertNull(evaluate(DataType.STRING, new StringFieldValue("69"), DataType.STRING, null));
assertNull(evaluate(DataType.STRING, null, DataType.STRING, new StringFieldValue("69")));
assertNull(evaluate(DataType.INT, new IntegerFieldValue(69), DataType.INT, null));
assertNull(evaluate(DataType.INT, null, DataType.INT, new IntegerFieldValue(69)));
}
@Test
public void requireThatPrimitiveVerificationWorks() {
assertEquals(DataType.STRING, evaluate(DataType.getArray(DataType.STRING), DataType.STRING));
assertEquals(DataType.STRING, evaluate(DataType.STRING, DataType.getArray(DataType.STRING)));
assertEquals(DataType.STRING, evaluate(DataType.getWeightedSet(DataType.STRING), DataType.STRING));
assertEquals(DataType.STRING, evaluate(DataType.STRING, DataType.getWeightedSet(DataType.STRING)));
}
@Test
public void requireThatInputValueIsAvailableToAllInnerExpressions() {
assertEquals(new StringFieldValue("foobarfoo"),
new StatementExpression(new ConstantExpression(new StringFieldValue("foo")),
new CatExpression(new ThisExpression(),
new ConstantExpression(new StringFieldValue("bar")),
new ThisExpression())).execute());
}
@Test
public void requiredThatRequiredInputTypeAllowsNull() {
assertVerify(new ConstantExpression(new StringFieldValue("foo")), new TrimExpression(), DataType.STRING);
assertVerify(new TrimExpression(), new ConstantExpression(new StringFieldValue("foo")), DataType.STRING);
}
@Test
public void requireThatArraysAreConcatenated() {
Array<StringFieldValue> lhs = new Array<>(DataType.getArray(DataType.STRING));
lhs.add(new StringFieldValue("6"));
Array<StringFieldValue> rhs = new Array<>(DataType.getArray(DataType.STRING));
rhs.add(new StringFieldValue("9"));
FieldValue val = evaluate(lhs, rhs);
assertTrue(val instanceof Array);
Array arr = (Array)val;
assertEquals(2, arr.size());
assertEquals(new StringFieldValue("6"), arr.get(0));
assertEquals(new StringFieldValue("9"), arr.get(1));
}
@Test
public void requireThatArraysCanBeNull() {
DataType type = DataType.getArray(DataType.STRING);
Array<StringFieldValue> arr = new Array<>(type);
arr.add(new StringFieldValue("9"));
FieldValue val = evaluate(type, null, type, arr);
assertEquals(type, val.getDataType());
assertEquals(1, ((Array)val).size());
assertEquals(new StringFieldValue("9"), ((Array)val).get(0));
val = evaluate(type, arr, type, null);
assertEquals(type, val.getDataType());
assertEquals(1, ((Array)val).size());
assertEquals(new StringFieldValue("9"), ((Array)val).get(0));
}
@Test
public void requireThatWsetsAreConcatenated() {
WeightedSet<StringFieldValue> lhs = new WeightedSet<>(DataType.getWeightedSet(DataType.STRING));
lhs.put(new StringFieldValue("6"), 9);
WeightedSet<StringFieldValue> rhs = new WeightedSet<>(DataType.getWeightedSet(DataType.STRING));
rhs.put(new StringFieldValue("9"), 6);
FieldValue val = evaluate(lhs, rhs);
assertTrue(val instanceof WeightedSet);
WeightedSet wset = (WeightedSet)val;
assertEquals(2, wset.size());
assertEquals(Integer.valueOf(9), wset.get(new StringFieldValue("6")));
assertEquals(Integer.valueOf(6), wset.get(new StringFieldValue("9")));
}
@Test
public void requireThatWsetsCanBeNull() {
DataType type = DataType.getWeightedSet(DataType.STRING);
WeightedSet<StringFieldValue> wset = new WeightedSet<>(type);
wset.put(new StringFieldValue("6"), 9);
FieldValue val = evaluate(type, null, type, wset);
assertEquals(type, val.getDataType());
assertEquals(1, ((WeightedSet)val).size());
assertEquals(Integer.valueOf(9), ((WeightedSet)val).get(new StringFieldValue("6")));
val = evaluate(type, wset, type, null);
assertEquals(type, val.getDataType());
assertEquals(1, ((WeightedSet)val).size());
assertEquals(Integer.valueOf(9), ((WeightedSet)val).get(new StringFieldValue("6")));
}
@Test
public void requireThatCollectionTypesMustBeCompatible() {
assertEquals(DataType.getArray(DataType.STRING), evaluate(DataType.getArray(DataType.STRING),
DataType.getArray(DataType.STRING)));
assertEquals(DataType.STRING, evaluate(DataType.getArray(DataType.STRING), DataType.getArray(DataType.INT)));
assertEquals(DataType.STRING,
evaluate(DataType.getArray(DataType.STRING), DataType.getWeightedSet(DataType.STRING)));
assertEquals(DataType.getWeightedSet(DataType.STRING), evaluate(DataType.getWeightedSet(DataType.STRING),
DataType.getWeightedSet(DataType.STRING)));
assertEquals(DataType.STRING,
evaluate(DataType.getWeightedSet(DataType.STRING), DataType.getWeightedSet(DataType.INT)));
assertEquals(DataType.STRING,
evaluate(DataType.getWeightedSet(DataType.STRING), DataType.getArray(DataType.STRING)));
}
@Test
public void requireThatCollectionValuesMustBeCompatible() {
{
Array<StringFieldValue> arrA = new Array<>(DataType.getArray(DataType.STRING));
arrA.add(new StringFieldValue("6"));
Array<IntegerFieldValue> arrB = new Array<>(DataType.getArray(DataType.INT));
arrB.add(new IntegerFieldValue(9));
assertEquals(new StringFieldValue(arrA.toString() + arrB.toString()), evaluate(arrA, arrB));
assertEquals(new StringFieldValue(arrB.toString() + arrA.toString()), evaluate(arrB, arrA));
}
{
Array<StringFieldValue> arr = new Array<>(DataType.getArray(DataType.STRING));
arr.add(new StringFieldValue("6"));
WeightedSet<StringFieldValue> wset = new WeightedSet<>(DataType.getWeightedSet(DataType.STRING));
wset.add(new StringFieldValue("9"));
assertEquals(new StringFieldValue(arr.toString() + wset.toString()), evaluate(arr, wset));
assertEquals(new StringFieldValue(wset.toString() + arr.toString()), evaluate(wset, arr));
}
{
WeightedSet<StringFieldValue> wsetA = new WeightedSet<>(DataType.getWeightedSet(DataType.STRING));
wsetA.add(new StringFieldValue("6"));
WeightedSet<IntegerFieldValue> wsetB = new WeightedSet<>(DataType.getWeightedSet(DataType.INT));
wsetB.add(new IntegerFieldValue(9));
assertEquals(new StringFieldValue(wsetA.toString() + wsetB.toString()), evaluate(wsetA, wsetB));
assertEquals(new StringFieldValue(wsetB.toString() + wsetA.toString()), evaluate(wsetB, wsetA));
}
}
private static void assertVerify(Expression expA, Expression expB, DataType val) {
new CatExpression(expA, expB).verify(val);
}
private static void assertVerifyThrows(Expression expA, Expression expB, DataType val, String expectedException) {
try {
new CatExpression(expA, expB).verify(val);
fail();
} catch (VerificationException e) {
if (!e.getMessage().startsWith(expectedException)) {
assertEquals(expectedException, e.getMessage());
}
}
}
private static FieldValue evaluate(FieldValue valA, FieldValue valB) {
return evaluate(valA.getDataType(), valA, valB.getDataType(), valB);
}
private static FieldValue evaluate(DataType typeA, FieldValue valA, DataType typeB, FieldValue valB) {
ExecutionContext ctx = new ExecutionContext(new SimpleTestAdapter(new Field("a", typeA),
new Field("b", typeB)));
ctx.setOutputValue(null, "a", valA);
ctx.setOutputValue(null, "b", valB);
new CatExpression(new InputExpression("a"), new InputExpression("b")).execute(ctx);
return ctx.getValue();
}
private static DataType evaluate(DataType typeA, DataType typeB) {
SimpleTestAdapter adapter = new SimpleTestAdapter(new Field("a", typeA), new Field("b", typeB));
VerificationContext ctx = new VerificationContext(adapter);
new CatExpression(new InputExpression("a"), new InputExpression("b")).verify(ctx);
return ctx.getValueType();
}
}
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