--- /dev/null
+/* ====================================================================
+ 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.hssf.record;
+
+import java.util.List;
+import java.util.Stack;
+
+import junit.framework.AssertionFailedError;
+import junit.framework.ComparisonFailure;
+import junit.framework.TestCase;
+
+import org.apache.poi.hssf.record.formula.Ptg;
+import org.apache.poi.hssf.record.formula.RefAPtg;
+
+/**
+ * @author Josh Micich
+ */
+public final class TestSharedFormulaRecord extends TestCase {
+
+ /**
+ * Binary data for an encoded formula. Taken from attachment 22062 (bugzilla 45123/45421).
+ * The shared formula is in Sheet1!C6:C21, with text "SUMPRODUCT(--(End_Acct=$C6),--(End_Bal))"
+ * This data is found at offset 0x1A4A (within the shared formula record).
+ * The critical thing about this formula is that it contains shared formula tokens (tRefN*,
+ * tAreaN*) with operand class 'array'.
+ */
+ private static final byte[] SHARED_FORMULA_WITH_REF_ARRAYS_DATA = {
+ 0x1A, 0x00,
+ 0x63, 0x02, 0x00, 0x00, 0x00,
+ 0x6C, 0x00, 0x00, 0x02, (byte)0x80, // tRefNA
+ 0x0B,
+ 0x15,
+ 0x13,
+ 0x13,
+ 0x63, 0x03, 0x00, 0x00, 0x00,
+ 0x15,
+ 0x13,
+ 0x13,
+ 0x42, 0x02, (byte)0xE4, 0x00,
+ };
+
+ /**
+ * The method <tt>SharedFormulaRecord.convertSharedFormulas()</tt> converts formulas from
+ * 'shared formula' to 'single cell formula' format. It is important that token operand
+ * classes are preserved during this transformation, because Excel may not tolerate the
+ * incorrect encoding. The formula here is one such example (Excel displays #VALUE!).
+ */
+ public void testConvertSharedFormulasOperandClasses_bug45123() {
+
+ TestcaseRecordInputStream in = new TestcaseRecordInputStream(0, SHARED_FORMULA_WITH_REF_ARRAYS_DATA);
+ short encodedLen = in.readShort();
+ Stack sharedFormula = Ptg.createParsedExpressionTokens(encodedLen, in);
+
+ Stack convertedFormula = SharedFormulaRecord.convertSharedFormulas(sharedFormula, 100, 200);
+
+ RefAPtg refPtg = (RefAPtg) convertedFormula.get(1);
+ assertEquals("$C101", refPtg.toFormulaString(null));
+ if (refPtg.getPtgClass() == Ptg.CLASS_REF) {
+ throw new AssertionFailedError("Identified bug 45123");
+ }
+
+ confirmOperandClasses(toPtgArray(sharedFormula), toPtgArray(convertedFormula));
+ }
+
+ private static void confirmOperandClasses(Ptg[] originalPtgs, Ptg[] convertedPtgs) {
+ assertEquals(originalPtgs.length, convertedPtgs.length);
+ for (int i = 0; i < convertedPtgs.length; i++) {
+ Ptg originalPtg = originalPtgs[i];
+ Ptg convertedPtg = convertedPtgs[i];
+ if (originalPtg.getPtgClass() != convertedPtg.getPtgClass()) {
+ throw new ComparisonFailure("Different operand class for token[" + i + "]",
+ String.valueOf(originalPtg.getPtgClass()), String.valueOf(convertedPtg.getPtgClass()));
+ }
+ }
+ }
+
+ private static Ptg[] toPtgArray(List list) {
+ Ptg[] result = new Ptg[list.size()];
+ list.toArray(result);
+ return result;
+ }
+}