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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.StructDataType;
import com.yahoo.document.datatypes.Array;
import com.yahoo.document.datatypes.FieldValue;
import com.yahoo.document.datatypes.IntegerFieldValue;
import com.yahoo.document.datatypes.StringFieldValue;
import com.yahoo.document.datatypes.Struct;
import com.yahoo.document.datatypes.WeightedSet;
import com.yahoo.vespa.indexinglanguage.SimpleTestAdapter;
import org.junit.Test;
import java.util.LinkedList;
import java.util.List;
import static com.yahoo.vespa.indexinglanguage.expressions.ExpressionAssert.assertVerify;
import static com.yahoo.vespa.indexinglanguage.expressions.ExpressionAssert.assertVerifyThrows;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* @author Simon Thoresen Hult
*/
@SuppressWarnings({ "rawtypes" })
public class ForEachTestCase {
@Test
public void requireThatAccessorsWork() {
Expression innerExp = new AttributeExpression("foo");
ForEachExpression exp = new ForEachExpression(innerExp);
assertSame(innerExp, exp.getInnerExpression());
}
@Test
public void requireThatHashCodeAndEqualsAreImplemented() {
Expression innerExp = new AttributeExpression("foo");
Expression exp = new ForEachExpression(innerExp);
assertFalse(exp.equals(new Object()));
assertFalse(exp.equals(new ForEachExpression(new AttributeExpression("bar"))));
assertEquals(exp, new ForEachExpression(innerExp));
assertEquals(exp.hashCode(), new ForEachExpression(innerExp).hashCode());
}
@Test
public void requireThatExpressionCanBeVerified() {
Expression exp = new ForEachExpression(SimpleExpression.newConversion(DataType.INT, DataType.STRING));
assertVerify(DataType.getArray(DataType.INT), exp, DataType.getArray(DataType.STRING));
assertVerifyThrows(null, exp, "Expected any input, but no input is specified");
assertVerifyThrows(DataType.INT, exp, "Expected Array, Struct or WeightedSet input, got int");
assertVerifyThrows(DataType.getArray(DataType.STRING), exp, "Expected int input, got string");
}
@Test
public void requireThatStructFieldCompatibilityIsVerified() {
StructDataType type = new StructDataType("my_struct");
type.addField(new Field("foo", DataType.INT));
assertVerify(type, new ForEachExpression(new SimpleExpression()), type);
assertVerifyThrows(type, new ForEachExpression(SimpleExpression.newConversion(DataType.STRING, DataType.INT)),
"Expected string input, got int");
assertVerifyThrows(type, new ForEachExpression(SimpleExpression.newConversion(DataType.INT, DataType.STRING)),
"Expected int output, got string");
}
@Test
public void requireThatEachTokenIsExecutedSeparately() {
ExecutionContext ctx = new ExecutionContext(new SimpleTestAdapter());
Array<StringFieldValue> arr = new Array<>(DataType.getArray(DataType.STRING));
arr.add(new StringFieldValue("6"));
arr.add(new StringFieldValue("9"));
ctx.setValue(arr);
MyCollector exp = new MyCollector();
new ForEachExpression(exp).execute(ctx);
assertEquals(2, exp.lst.size());
FieldValue val = exp.lst.get(0);
assertTrue(val instanceof StringFieldValue);
assertEquals("6", ((StringFieldValue)val).getString());
val = exp.lst.get(1);
assertTrue(val instanceof StringFieldValue);
assertEquals("9", ((StringFieldValue)val).getString());
}
@Test
public void requireThatCreatedOutputTypeDependsOnInnerExpression() {
assertNull(new ForEachExpression(new SimpleExpression()).createdOutputType());
assertNotNull(new ForEachExpression(new ConstantExpression(new IntegerFieldValue(69))).createdOutputType());
}
@Test
public void requireThatArrayCanBeConverted() {
ExecutionContext ctx = new ExecutionContext(new SimpleTestAdapter());
Array<StringFieldValue> before = new Array<>(DataType.getArray(DataType.STRING));
before.add(new StringFieldValue("6"));
before.add(new StringFieldValue("9"));
ctx.setValue(before);
new ForEachExpression(new ToIntegerExpression()).execute(ctx);
FieldValue val = ctx.getValue();
assertTrue(val instanceof Array);
Array after = (Array)val;
assertEquals(2, after.size());
assertEquals(new IntegerFieldValue(6), after.get(0));
assertEquals(new IntegerFieldValue(9), after.get(1));
}
@Test
public void requireThatEmptyArrayCanBeConverted() {
ExecutionContext ctx = new ExecutionContext(new SimpleTestAdapter());
ctx.setValue(new Array<StringFieldValue>(DataType.getArray(DataType.STRING)));
new ForEachExpression(new ToIntegerExpression()).execute(ctx);
FieldValue val = ctx.getValue();
assertTrue(val instanceof Array);
assertEquals(DataType.INT, ((Array)val).getDataType().getNestedType());
assertTrue(((Array)val).isEmpty());
}
@Test
public void requireThatIllegalInputValueThrows() {
try {
new ForEachExpression(new SimpleExpression()).execute(new StringFieldValue("foo"));
fail();
} catch (IllegalArgumentException e) {
assertEquals("Expected Array, Struct or WeightedSet input, got string", e.getMessage());
}
}
@Test
public void requireThatArrayWithNullCanBeConverted() {
ExecutionContext ctx = new ExecutionContext(new SimpleTestAdapter());
Array<StringFieldValue> arr = new Array<>(DataType.getArray(DataType.STRING));
arr.add(new StringFieldValue("foo"));
ctx.setValue(arr);
new ForEachExpression(SimpleExpression.newConversion(DataType.STRING, DataType.INT)
.setExecuteValue(null)).execute(ctx);
FieldValue val = ctx.getValue();
assertTrue(val instanceof Array);
assertEquals(DataType.INT, ((Array)val).getDataType().getNestedType());
assertTrue(((Array)val).isEmpty());
}
@Test
public void requireThatWsetCanBeConverted() {
ExecutionContext ctx = new ExecutionContext(new SimpleTestAdapter());
WeightedSet<StringFieldValue> before = new WeightedSet<>(DataType.getWeightedSet(DataType.STRING));
before.put(new StringFieldValue("6"), 9);
before.put(new StringFieldValue("9"), 6);
ctx.setValue(before);
new ForEachExpression(new ToIntegerExpression()).execute(ctx);
FieldValue val = ctx.getValue();
assertTrue(val instanceof WeightedSet);
WeightedSet after = (WeightedSet)val;
assertEquals(2, after.size());
assertEquals(Integer.valueOf(9), after.get(new IntegerFieldValue(6)));
assertEquals(Integer.valueOf(6), after.get(new IntegerFieldValue(9)));
}
@Test
public void requireThatEmptyWsetCanBeConverted() {
ExecutionContext ctx = new ExecutionContext(new SimpleTestAdapter());
ctx.setValue(new WeightedSet<StringFieldValue>(DataType.getWeightedSet(DataType.STRING)));
new ForEachExpression(new ToIntegerExpression()).execute(ctx);
FieldValue val = ctx.getValue();
assertTrue(val instanceof WeightedSet);
assertEquals(DataType.INT, ((WeightedSet)val).getDataType().getNestedType());
assertTrue(((WeightedSet)val).isEmpty());
}
@Test
public void requireThatStructContentCanBeConverted() {
StructDataType type = new StructDataType("my_type");
type.addField(new Field("my_str", DataType.STRING));
Struct struct = new Struct(type);
struct.setFieldValue("my_str", new StringFieldValue(" foo "));
ExecutionContext ctx = new ExecutionContext(new SimpleTestAdapter());
ctx.setValue(struct);
new ForEachExpression(new TrimExpression()).execute(ctx);
FieldValue val = ctx.getValue();
assertTrue(val instanceof Struct);
assertEquals(type, val.getDataType());
assertEquals(new StringFieldValue("foo"), ((Struct)val).getFieldValue("my_str"));
}
@Test
public void requireThatIncompatibleStructFieldsFailToValidate() {
StructDataType type = new StructDataType("my_type");
type.addField(new Field("my_int", DataType.INT));
VerificationContext ctx = new VerificationContext(new SimpleTestAdapter());
ctx.setValueType(type);
try {
new ForEachExpression(new ToArrayExpression()).verify(ctx);
fail();
} catch (VerificationException e) {
assertEquals("Expected int output, got Array<int>", e.getMessage());
}
}
@Test
public void requireThatIncompatibleStructFieldsFailToExecute() {
StructDataType type = new StructDataType("my_type");
type.addField(new Field("my_int", DataType.INT));
Struct struct = new Struct(type);
struct.setFieldValue("my_int", new IntegerFieldValue(69));
ExecutionContext ctx = new ExecutionContext(new SimpleTestAdapter());
ctx.setValue(struct);
try {
new ForEachExpression(new ToArrayExpression()).execute(ctx);
fail();
} catch (IllegalArgumentException e) {
assertEquals("Class class com.yahoo.document.datatypes.Array not applicable to an class " +
"com.yahoo.document.datatypes.IntegerFieldValue instance.", e.getMessage());
}
}
private static class MyCollector extends Expression {
List<FieldValue> lst = new LinkedList<>();
MyCollector() {
super(null);
}
@Override
protected void doExecute(ExecutionContext context) {
lst.add(context.getValue());
}
@Override
protected void doVerify(VerificationContext context) {
}
@Override
public DataType createdOutputType() {
return null;
}
}
}
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