// Copyright 2009 Google Inc.
//
// 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
//
// 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 com.google.visualization.datasource.query.scalarfunction;
import com.google.common.collect.Lists;
import com.google.visualization.datasource.base.InvalidQueryException;
import com.google.visualization.datasource.datatable.value.TextValue;
import com.google.visualization.datasource.datatable.value.Value;
import com.google.visualization.datasource.datatable.value.ValueType;
import junit.framework.TestCase;
/**
* Tests for the Upper scalar function.
*
* @author Yaniv S.
*/
public class UpperTest extends TestCase {
public void testValidateParameters() {
Upper upper = Upper.getInstance();
// Verify that Upper does not accept 0 parameters.
try {
upper.validateParameters(Lists.<ValueType>newArrayList());
fail();
} catch (InvalidQueryException e) {
// Do nothing - this is the expected behavior.
}
// Verify that Upper does not accept more than 1 parameter.
try {
upper.validateParameters(Lists.newArrayList(ValueType.TEXT,
ValueType.TEXT));
fail();
} catch (InvalidQueryException e) {
// Do nothing - this is the expected behavior.
}
// Verify that Upper does not accept a non-Text parameter.
try {
upper.validateParameters(Lists.newArrayList(ValueType.DATE));
fail();
} catch (InvalidQueryException e) {
// Do nothing - this is the expected behavior.
}
// Verify that Upper accepts 1 TEXT parameter.
try {
upper.validateParameters(Lists.newArrayList(ValueType.TEXT));
} catch (InvalidQueryException e) {
fail();
}
}
public void testEvaluate() {
Upper upper = Upper.getInstance();
// Test empty string.
TextValue textValue = (TextValue) upper.evaluate(
Lists.<Value>newArrayList(new TextValue("")));
assertEquals(textValue.getValue(), "");
// Basic test.
textValue = (TextValue) upper.evaluate(
Lists.<Value>newArrayList(new TextValue("aBc")));
assertEquals(textValue.getValue(), "ABC");
}
}