| /* ==================================================================== |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF 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.apache.poi.ss.formula.functions; |
| |
| import junit.framework.TestCase; |
| |
| import org.apache.poi.ss.formula.eval.BlankEval; |
| import org.apache.poi.ss.formula.eval.BoolEval; |
| import org.apache.poi.ss.formula.eval.ErrorEval; |
| import org.apache.poi.ss.formula.eval.NumberEval; |
| import org.apache.poi.ss.formula.eval.StringEval; |
| import org.apache.poi.ss.formula.eval.ValueEval; |
| /** |
| * Tests for Excel function LEN() |
| * |
| * @author Josh Micich |
| */ |
| public final class TestLen extends TestCase { |
| |
| private static ValueEval invokeLen(ValueEval text) { |
| ValueEval[] args = new ValueEval[] { text, }; |
| return TextFunction.LEN.evaluate(args, -1, (short)-1); |
| } |
| |
| private void confirmLen(ValueEval text, int expected) { |
| ValueEval result = invokeLen(text); |
| assertEquals(NumberEval.class, result.getClass()); |
| assertEquals(expected, ((NumberEval)result).getNumberValue(), 0); |
| } |
| |
| private void confirmLen(ValueEval text, ErrorEval expectedError) { |
| ValueEval result = invokeLen(text); |
| assertEquals(ErrorEval.class, result.getClass()); |
| assertEquals(expectedError.getErrorCode(), ((ErrorEval)result).getErrorCode()); |
| } |
| |
| public void testBasic() { |
| |
| confirmLen(new StringEval("galactic"), 8); |
| } |
| |
| /** |
| * Valid cases where text arg is not exactly a string |
| */ |
| public void testUnusualArgs() { |
| |
| // text (first) arg type is number, other args are strings with fractional digits |
| confirmLen(new NumberEval(123456), 6); |
| confirmLen(BoolEval.FALSE, 5); |
| confirmLen(BoolEval.TRUE, 4); |
| confirmLen(BlankEval.instance, 0); |
| } |
| |
| public void testErrors() { |
| confirmLen(ErrorEval.NAME_INVALID, ErrorEval.NAME_INVALID); |
| } |
| } |