TestRowCol.java

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   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
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       http://www.apache.org/licenses/LICENSE-2.0

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   distributed under the License is distributed on an "AS IS" BASIS,
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   See the License for the specific language governing permissions and
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package org.apache.poi.ss.formula.functions;

import junit.framework.TestCase;

import org.apache.poi.ss.formula.eval.ValueEval;

/**
 * Tests for ROW(), ROWS(), COLUMN(), COLUMNS()
 *
 * @author Josh Micich
 */
public final class TestRowCol extends TestCase {

	public void testCol() {
		Function target = new Column();
		{
			ValueEval[] args = { EvalFactory.createRefEval("C5"), };
			double actual = NumericFunctionInvoker.invoke(target, args);
			assertEquals(3, actual, 0D);
		}
		{
			ValueEval[] args = { EvalFactory.createAreaEval("E2:H12", new ValueEval[44]), };
			double actual = NumericFunctionInvoker.invoke(target, args);
			assertEquals(5, actual, 0D);
		}
	}

	public void testRow() {
		Function target = new RowFunc();
		{
			ValueEval[] args = { EvalFactory.createRefEval("C5"), };
			double actual = NumericFunctionInvoker.invoke(target, args);
			assertEquals(5, actual, 0D);
		}
		{
			ValueEval[] args = { EvalFactory.createAreaEval("E2:H12", new ValueEval[44]), };
			double actual = NumericFunctionInvoker.invoke(target, args);
			assertEquals(2, actual, 0D);
		}
	}

	public void testColumns() {

		confirmColumnsFunc("A1:F1", 6, 1);
		confirmColumnsFunc("A1:C2", 3, 2);
		confirmColumnsFunc("A1:B3", 2, 3);
		confirmColumnsFunc("A1:A6", 1, 6);

		ValueEval[] args = { EvalFactory.createRefEval("C5"), };
		double actual = NumericFunctionInvoker.invoke(new Columns(), args);
		assertEquals(1, actual, 0D);
	}

	public void testRows() {

		confirmRowsFunc("A1:F1", 6, 1);
		confirmRowsFunc("A1:C2", 3, 2);
		confirmRowsFunc("A1:B3", 2, 3);
		confirmRowsFunc("A1:A6", 1, 6);

		ValueEval[] args = { EvalFactory.createRefEval("C5"), };
		double actual = NumericFunctionInvoker.invoke(new Rows(), args);
		assertEquals(1, actual, 0D);
	}

	private static void confirmRowsFunc(String areaRefStr, int nCols, int nRows) {
		ValueEval[] args = { EvalFactory.createAreaEval(areaRefStr, new ValueEval[nCols * nRows]), };

		double actual = NumericFunctionInvoker.invoke(new Rows(), args);
		assertEquals(nRows, actual, 0D);
	}


	private static void confirmColumnsFunc(String areaRefStr, int nCols, int nRows) {
		ValueEval[] args = { EvalFactory.createAreaEval(areaRefStr, new ValueEval[nCols * nRows]), };

		double actual = NumericFunctionInvoker.invoke(new Columns(), args);
		assertEquals(nCols, actual, 0D);
	}
}