Make sure the left overs are re-serialized on excel file reads to avoid
the "Warning: Data may have been lost" prompt in excel.
This ptg represents a LEN function extracted from excel
byte[] fakeData = new byte[4];
//fakeData[0] = (byte) 0x41;
fakeData[0] = (byte) 0x20; //function index
fakeData[1] = (byte) 0;
fakeData[2] = (byte) 8;
FuncPtg ptg = new FuncPtg( new TestcaseRecordInputStream((short)0, (short)fakeData.length, fakeData) );
assertEquals( "Len formula index is not 32(20H)", (int) 0x20, ptg.getFunctionIndex() );
assertEquals( "Number of operands in the len formula", 1, ptg.getNumberOfOperands() );
assertEquals( "Function Name", "LEN", ptg.getName() );
assertEquals( "Ptg Size", 3, ptg.getSize() );
//assertEquals("first leftover byte is not 0", (byte)0, ptg.leftOvers[0]);
//assertEquals("second leftover byte is not 8", (byte)8, ptg.leftOvers[1]);