Commit Graph

374 Commits

Author SHA1 Message Date
Adrien Crivelli 7cb4884b96
WEBSERVICE is HTTP client agnostic
HTTP client must be configured via `Settings::setHttpClient()`. This is
a small breaking change, but only for the very few people who started using
WEBSERVICE from last version.

Fixes #1562
Closes #1568
2020-07-19 11:33:01 +09:00
oleibman 165034ad70
Restoring State After Static Changes in Tests (#1571)
This request does not change any source code, only tests.

For a change on which I was working, a test passed when run on its own,
but failed when run as part of the full test suite. It turned out that
an existing test had changed a static value,
thousands separator in this case, and failed to restore it.
The test turned out to be AdvancedBinderTest.

The search for the offending test was more difficult than it should have
been because 26 test scripts which had nothing to do with thousands
separator nevertheless changed that value. They all changed
decimal separator, currency code, and compatibility mode as well,
again for no reason. I changed all of those to eliminate those operations.

I changed the following tests, which actually do change the static
properties identified above for a reason, to restore them as part of teardown.
- CalculationTest sets compatibilityMode and locale
- DayTest sets compatibilityMode, returnDateType, and excelCalendar
- CountTest sets compatibilityMode
- FunctionsTest sets compatibilityMode and returnDateType
- AdvancedValueBinderTest sets currencyCode, decimalSeparator, thousandsSeparator
- StringHelperTest sets currencyCode, decimalSeparator, thousandsSeparator
- NumberFormatTest sets currencyCode, decimalSeparator, thousandsSeparator
- HtmlNumberFormatTest sets currencyCode, decimalSeparator, thousandsSeparator
2020-07-15 13:23:00 +02:00
Mark Baker b89968d206
Additional Unit Tests (#1582) 2020-07-14 10:58:50 +02:00
paulkned 7f23ccb69d
Added support for the WEBSERVICE function (#1409)
Co-authored-by: Paul Kievits <kievits@rsm.nl>
2020-06-29 10:17:58 +09:00
Adrien Crivelli f1fb8dcf1f
Don't ouput row and columns without any cells in HTML writer
If row or column dimensions are accessed, then HTML writer would
still generate lots of empty cells, to show nothing at all. This
now ignore row and column dimensions to only output cell that
actually exists (even if those cells are empty).

Fixes #1235
Close #1537
2020-06-28 22:03:37 +09:00
Adrien Crivelli a90bf863ab
Merge pull request #1499 from oleibman/htmledit
Add ability to save edited Html/Pdf
2020-06-28 17:46:56 +09:00
Adrien Crivelli 2896e6ceb9
Consistent regexp escaping 2020-06-28 17:34:32 +09:00
Mark Baker a264cafe4c
Helper class for the conversion of cell addresses between A1 and R1C1 formats, and vice-versa (#1558)
* Helper class for the conversion of cell addresses between A1 and R1C1 formats, and vice-versa
2020-06-27 23:03:25 +02:00
Mark Baker 10a4a95d67
Handle Ranges formatted as 3-d ranges, as long as the references are both to the same worksheet (#1540) 2020-06-21 14:41:51 +02:00
Dawid Warmuz 859bef1901
Add support for IFS() logical function (#1442)
* Add support for IFS() logical function

* Use Exception as false value in IFS logical function, so it never collides with string in spreadsheet
2020-06-20 18:21:19 +02:00
Christoph Ziegenberg ca506ba87f
Corrected date time detection (#1492)
* Corrected date time detection

German and Swiss ZIP codes (special formats provided in German Excel versions) were detected as date time value, because the regular expression for date time formats falsely matched their formats ("\C\H\-00000" and "\D-00000").
2020-06-20 17:15:38 +02:00
oleibman b3d30f4cbc
Xls Writer - Correct Timestamp Bug, Improve Coverage (#1493)
* Xls Writer - Correct Timestamp Bug, Improve Coverage

I believe that Xls Writer is 100% covered now.

The Xls Writer sets its timestamp incorrectly. The problem is actually
in Shared/Ole::localDateToOLE, which converts its timestamp using
gmmktime; mktime is correct. If I save a file at 3:00 p.m. in San Francisco,
this bug means the time is actually recorded as 3:00 p.m. UTC.
A consequence of this is that if you use Phpspreadsheet to read the
file and save it as a new Xls, the creation timestamp goes further
and further back in time with each generation (or further forward
if east of Greenwich). One of the tests added confirms that
the creation timestamp is consistent with the start and end times
of the test.

The major change in coverage is adding tests to save GIF and BMP
images, which aren't supported in Xls, but are converted to PNG
in the PhpSpreadsheet code.
2020-06-19 21:08:36 +02:00
Arne Jørgensen a5a0268050
Fix HLOOKUP on single row (#1512)
Fixes a bug when doing a HLOOKUP on a single row.

```php
<?php

require 'vendor/autoload.php';

use PhpOffice\PhpSpreadsheet\Spreadsheet;

$spreadsheet = new Spreadsheet();
$sheet = $spreadsheet->getActiveSheet();

/**
 * Single row.
 */
$singleRow = "=HLOOKUP(10, {5, 10, 15}, 1, 0)";
$sheet->getCell('A1')->setValue($singleRow);

// Should echo 10, but echos '#N/A' and some PHP notices and warnings.
echo $sheet->getCell('A1')->getCalculatedValue() . PHP_EOL;

/**
 * Multiple rows.
 */
$multipleRows = "=HLOOKUP(10, {5, 10, 15; 20, 25, 30}, 1, 0)";
$sheet->getCell('A2')->setValue($multipleRows);

// Should echo: 10 and also does.
echo $sheet->getCell('A2')->getCalculatedValue() . PHP_EOL;
```

Co-authored-by: Mark Baker <mark@lange.demon.co.uk>
2020-06-19 21:06:41 +02:00
oleibman 38fab4e632
Fix for #1505 (#1525)
This problem is the same as #1238, which was resolved by #1239.
For that issue, the fix was to check in one place whether
$this->mapCellXfIndex[$xfIndex] was set before using it.
The sample spreadsheet supplied as a description for this
problem had exactly the same problem in 2 other places in the code.
In addition, there were 7 other places in the code where that
particular item was used unchecked. This fix corrects all 9 locations.
The spreadsheet supplied with the problem is used as the basis
for some new tests, which particularly test column dimensions
and styles, the problems involved in this case.
2020-06-19 21:01:18 +02:00
oleibman 3844186397
Fix for Issue 1495 (#1500)
#1495 reports that ActiveSheet can change when calculation
involves jumping around between sheets.
Save index before calculation, restore after, add test.
2020-06-19 20:57:20 +02:00
Arne Jørgensen 1a44ef9109
Fix MATCH when comparing different numeric types (#1521)
Let MATCH compare numerics of different type (e.g. integers and floats).

```php
<?php

require 'vendor/autoload.php';

use PhpOffice\PhpSpreadsheet\Spreadsheet;

$spreadsheet = new Spreadsheet();
$sheet = $spreadsheet->getActiveSheet();

// Row: 1, 2, 3, 4, 5. MATCH for 4.6.
$sheet->getCell('A1')->setValue(1);
$sheet->getCell('A2')->setValue(2);
$sheet->getCell('A3')->setValue(3);
$sheet->getCell('A4')->setValue(4);
$sheet->getCell('A5')->setValue(5);

$sheet->getCell('B1')->setValue('=MATCH(4.6, A1:A5, 1)');

// Should echo 4, but echos '#N/A'.
echo $sheet->getCell('B1')->getCalculatedValue() . PHP_EOL;

// Row: 1, 2, 3, 3.8, 5. MATCH for 4.
$sheet->getCell('C1')->setValue(1);
$sheet->getCell('C2')->setValue(2);
$sheet->getCell('C3')->setValue(3);
$sheet->getCell('C4')->setValue(3.8);
$sheet->getCell('C5')->setValue(5);

$sheet->getCell('D1')->setValue('=MATCH(4, C1:C5, 1)');

// Should echo 4, but echos 3.
echo $sheet->getCell('D1')->getCalculatedValue() . PHP_EOL;
```

Co-authored-by: Mark Baker <mark@lange.demon.co.uk>
2020-06-19 20:54:04 +02:00
Arne Jørgensen 73c336ac96
Fix exact MATCH on ranges with empty cells (#1520)
Fixes a bug when doing exact match on ranges with empty cells.

```php
<?php

require 'vendor/autoload.php';

use PhpOffice\PhpSpreadsheet\Spreadsheet;

$spreadsheet = new Spreadsheet();
$sheet = $spreadsheet->getActiveSheet();

// Row: 1, null, 4, null, 8.
$sheet->getCell('A1')->setValue(1);
$sheet->getCell('A3')->setValue(4);
$sheet->getCell('A5')->setValue(8);

$sheet->getCell('B1')->setValue('=MATCH(4, A1:A5, 1)');

// Should echo 3, but echos '#N/A'.
echo $sheet->getCell('B1')->getCalculatedValue() . PHP_EOL;

// Row: 1, null, 4, null, null.
$sheet->getCell('C1')->setValue(1);
$sheet->getCell('C3')->setValue(4);

$sheet->getCell('D1')->setValue('=MATCH(5, C1:C5, 1)');

// Should echo 3, but echos '#N/A'.
echo $sheet->getCell('D1')->getCalculatedValue() . PHP_EOL;
```
2020-06-19 20:51:46 +02:00
oleibman d8b4c3b26e
Fix for #1533 (#1534)
Code assumes that formula whose result starts with # indicates error.
Change to check entire result against error list in Functions.
2020-06-19 20:40:28 +02:00
oleibman 262896086a
Improve Coverage for Sylk (#1514)
* Improve Coverage for Sylk

I believe that both BaseReader and Sylk Reader are now 100% covered.

Documentation available for this format is sparse.
It was always incomplete, and in some cases inaccurate.
My goal was to use PhpSpreadsheet to load the test file,
save it as Xlsx, and visually compare the two, then add a test
loaded with assertions. Cell values and calculated values,
and border styles were generally handled pretty well without changes.
Other types of styling were not handled so well. I added a few cells
to exercise some previously uncovered code.

Sylk files must be ASCII. I have deprecated the use of the
setEncoding and getEncoding functions, which had no test cases.
2020-06-19 20:35:44 +02:00
oleibman 73379cdfb1
Improve Coverage for Gnumeric (#1517)
* Improve Coverage for Gnumeric

I believe that both BaseReader and Gnumeric Reader are now 100% covered.

My goal was to use PhpSpreadsheet to load the test file,
save it as Xlsx, and visually compare the two, then add a test
loaded with assertions. Results were generally pretty good,
but there were no tests with assertions. I added a few cells
to exercise some previously uncovered code. Code was extensively
refactored; logic changes are noted below.

Code allowed for specifying document properties in an old format.
I considered removing that, but I found the original spec at
http://www.jfree.org/jworkbook/download/gnumeric-xml.pdf
This allowed me to create an old file, which was not handled
correctly because of namespace differences. The code was corrected
to allow for this difference.

Added support for textRotation.

Mapping of fill types was not correct.

* PHP7.2 Error

One assertion failed under PHP7.2. Apparently there was some change in
the handling of SimpleXMLElement between 7.2 and 7.3. Casting to string
before use eliminates the problem.

* Scrutinizer Recommendations

All minor, solved (hopefully) mostly by casts.

* One Last Scrutinizer Fix

... I hope.
2020-06-19 20:34:02 +02:00
oleibman ce6ac1f040
Fix For #1509 (#1518)
* Fix For #1509

User expected no CSV enclosures after $writer->setEnclosure(''),
which had been changed to be consistent with $reader->setEnclosure('').
Writer will now omit enclosures after code above; no change to Reader.
Tests have been added for this condition.

* Add Option to Write CSV Enclosure Only When Required

Allowing the user to specify no enclosure when writing a CSV can lead to
a situation where PhpSpreadsheet (likewise Excel) will not read the
resulting file as intended, e.g. if any cell contains a delimiter character.
This is demonstrated in new test TestBadReread.
No existing setting will rectify this situation.

A better choice would be to add an option to write the enclosure
only when it is needed, which is what Excel does. The RFC4180 spec at
https://tools.ietf.org/html/rfc4180
states when it is needed - when the cell contains the delimiter,
or the enclosure, or a newline.
New test TestGoodReread demonstrates that the file is read as intended.

The documentation has been updated to describe the new function,
and to change the write example where the enclosure is set to null.

* Scrutinizer Suggestions

3 minor changes, all in tests.
2020-06-19 20:28:57 +02:00
oleibman 82ea1d5596
Fix for #1516 (#1530)
This problem is that ZipStream, in contrast to ZipArchive,
is saving 2 files with the same path. I have opened an issue with
ZipStream, who agree that this appears to be a bug.

For the case in question, PhpSpreadsheet is attempting to save
a file with the same path twice (and unexpectedly succeeding)
because of a clone operation. This fix attempts to rectify the problem
by keeping track of all the paths being saved in the zip file,
and not attempting to save any duplicate paths.

The problem case attempted to save printersettings1.bin twice,
but there are other possible exposures, e.g. by cloning a sheet
with a drawing.The new test cases clone an existing sample which
has both printer settings and drawings.
2020-06-19 20:26:02 +02:00
Mark Baker 12dd92bafe
Resolve utf-8 named ranges in calculation engine (#1522)
* Resolve use of UTF-8 in defined names in the calculation engine
2020-06-13 17:35:29 +02:00
oleibman 360c8d8284
Merge branch 'master' into htmledit 2020-06-09 00:39:52 -07:00
Owen Leibman c47b407e39 Different Example for Callback
Replace default gridlines with different style. Usable in PDF
as well as HTML.

Documentation mentioned use of setUseBOM with Html, but that method
does not exist, and there is no real reason to support it.
Removed it from documentation.
2020-06-09 00:22:22 -07:00
Mark Baker 5c18bb5798
Range operator tests (#1501)
* Improved handling of named ranges, although there are still some issues (names ranges using a union type with an overlap don't handle the overlap twice, which as the MS Excel approach to set overlaps as opposed to the mathematical approach which only applies overlap values once)

* Fix tests that misused space and comma as simple separators in cell ranges
2020-06-02 07:38:35 +02:00
Adrien Crivelli b9a59660d0
Password and hash are exclusive
As specified in https://docs.microsoft.com/en-us/openspecs/office_standards/ms-xlsx/85f5567f-2599-41ad-ae26-8cfab23ce754
password and hashValue are exlusive and thus should be treated
transparently with a single API in our model.
2020-05-31 22:36:37 +09:00
Reijn dfa6f77178
Add support protection of worksheet by a specific hash algorithm 2020-05-31 20:29:20 +09:00
Owen Leibman edc411e6dd Add ability to save edited Html/Pdf
We give users the ability to edit Html/Pdf, but it's a little cumbersome
to use the edited Html for an Html file, and difficult to use it
for a Pdf. I believe we could make it fairly painless in both cases
by allowing the user to set a callback to edit the generated Html.
This can be accomplished with fewer than a dozen lines of very simple code.
I think this would be easier than grabbing the Html in pieces,
editing it, and reassembling it. I think it would also be simpler
than an alternative I considered, namely the addition of a new method
(e.g. saveEditedHtml) to each of the Html and Pdf writers.

One edit that users might like to make when editing html is to add
fallback fonts, something that is not currently available in
PhpSpreadsheet, and might be difficult to add. A natural extension to
that idea would be the use of webfonts, something which is guaranteed
difficult to add. See samples/Basic/17b_Html for an example of this.

None of the PDF writers support webfonts yet. That doesn't mean they
won't do so in future, but, for now, samples/Pdf/21a_Pdf is a prosaic
example of something you could do with this callback. In fact, this
opens the door to letting the user replace the entire body with data
of their choosing, effectively allowing PhpSpreadsheet (where you can
set things like paper size and orientation) to be used as a front-end to
the Pdf processor without the user having to be be overly familiar with
the vagaries of the PDF processor. I think this is actually a pretty
nice idea. YMMV. See samples/Basic/21b_Pdf for an example.
2020-05-30 21:27:35 -07:00
Mark Baker 8b2bba9bdb
Range operator tests (#1498)
* Fix intersection operator when working with named ranges
2020-05-29 21:53:28 +02:00
Alban Duval 7ed96e0be1
Calcualtion - DATEDIF - fix result for Y & YM units (#1466)
Bugfix for negative results and too small results

2000-02-02 => 2001-02-01
 > DATEDIF with Y unit: 0 year (returned -1 before fix)
 > DATEDIF with YM unit: 11 months (returned -1 before fix)
2020-05-25 21:33:48 +02:00
oleibman 5dd7e883c6
Fix Issue 1441 (isDateTime and Formulas) (#1480)
* Fix Issue 1441 (isDateTime and Formulas)

When you have a date-field which is a formula, isDateTime returns false.
https://github.com/PHPOffice/PhpSpreadsheet/issues/1441

Report makes sense; fixed as suggested. Also fixed a few minor
related issues, and added tests so that Shared/Date and Shared/TimeZone
are now completely covered.

Date/setDefaultTimeZone and TimeZone/setTimeZone were not consistent
about what to do in event of failure - return false or throw.
They will now both return false, which is what Date's function
said it would do in its doc block anyhow. Date/validateTimeZone will
continue to throw; it was protected, but was never called outside
Date, so I changed it to private.

TimeZone/getTimeZoneAdjustment checked for 'UST' when it probably
meant 'UTC', and, as it turns out, the check is not even needed.

The most serious problem was that TimeZone/validateTimeZone does not
check the backwards-compatible time zones. The timezone project
aggressively, and very controversially, "demotes" timezones;
such timezones eventually wind up in the PHP backwards-compatible list.
We want to make sure to check that list so that our applications do not
break when this happens.
2020-05-24 20:02:39 +02:00
oleibman 585409a949
Testing - Delete Temp Files When No Longer Needed (#1488)
No code changes. The tests in all of these scripts write to at least
one temporary file, which is then read and not used again. The file
should be deleted to avoid filling up the disk system.
2020-05-24 20:03:07 +09:00
oleibman 41b95c1542
CSV Sample File Was Miscoded (#1489)
File author erroneously assumed that backslash was used to escape
quotes in CSV; in fact, doubling the quote is used for escape.
The test still worked, but mainly because the content of the cell
with the escape wasn't tested. The file is now fixed, and
a new test added.
2020-05-24 19:57:39 +09:00
oleibman 9947de3b89
Restore working directory if test fails (#1490)
This test changes directory then performs an assertion.
No problem if the assertion succeeds. I was a little concerned about
what would happen if the assertion fails, leaving us in the
new directory. So I have changed test to use setUp/tearDown
to ensure that we end up where we started.
2020-05-24 19:54:59 +09:00
oleibman 84e03da5c7
Code Coverage for Shared\CodePage (#1491)
While investigating something else in Shared, I noticed that CodePage
had poor test coverage and a high complexity rating. This change
addresses both; Scrutinizer would love it, although its interface on
GitHub seems broken at the moment (all PRs show "Waiting for External
Code Coverage").
2020-05-24 19:51:28 +09:00
Mark Baker 8ca7bfe53c
Range operator tests (#1487)
* Range Operator Tests
* Correct handling for range intersections that result in an empty array
2020-05-24 00:25:54 +02:00
Mark Baker 86e9d669c6
Range Operator Tests (#1486)
* Range Operator Tests
2020-05-23 22:07:45 +02:00
Vagir 3446bb0ef7
Fix saving XLSX with drawings (#1462)
* Fix incorrect behaviour when saving XLSX file with drawings
2020-05-23 13:09:10 +02:00
Gianni Genovesi 7b1957f996
fix: issue #1476 crash with numeric string value terminating with new line (#1481)
* fix: issue #1476 crash with numeric string value terminating with new line
* test: provided tests for issue #1476
2020-05-23 12:49:54 +02:00
Adrien Crivelli 137268d61a
Remove undesired annotations 2020-05-18 15:49:29 +09:00
Adrien Crivelli fcd9f10663
Update PHP-CS-Fixer rules 2020-05-18 13:49:57 +09:00
oleibman 97a80f383c
Improve HTML Writer (#1464)
There are a number of situations where HTML write was producing
HTML which could not be validated. These include:

  - inconsistent use of backslash terminating META, IMG, and COL tags
  - @page style tags in body rather than header. Aside from being
    non-standard, HTML Reader treats those as spreadsheet data.
  - <div style="page-break-before:always" />, a construct which is
    usually better handled through css anyhow.
  - no alt tag for images (drawings and charts)

Other problems:

  - Windows file names not handled correctly for images
  - Memory drawings not handled in extendRowsForChartsAndImages
  - No handling of different values for showing gridlines
    for screen and print
  - Mpdf and Dompdf do not require the use of inline css.
    Tcpdf remains a holdout in the use of this inferior approach.
  - no need to chunk base64 encoding of embedded images
  - support for colors in number format was buggy (html tags
    run through htmlspecialchars)

Code has been refactored when practical to reduce the number of
very large functions.

Coverage is now 100% for the entire HTML Writer module,
from 75% lines and 39% methods beforehand.

All functions dealing only with charts
are bypassed for coverage because the version of Jpgraph available in
Composer is not suitable for PHP7. The code will, nevertheless,
run successfully, but with warning messages. I have confirmed that
the code is entirely covered, without warnings, when the current
version of Jpgraph is used in lieu of the one available in Composer.
I will be glad to revisit this when the Jpgraph problem is resolved.

Directory PhpSpreadsheetTests/Writer/Html was created to house
the new tests. It seemed logical to move HtmlCommentsTest to
the new directory from PhpSpreadsheetTests/Functional.

A function to generate all the HTML is useful, especially for testing,
but also in lieu of the multiple other generate* functions. I have
added and documented generateHTMLAll.

The documentation for the generate* functions (a) produces invalid html,
(b) produces html which cannot be handled correctly by HTML reader,
and (c) even if those were correct, does not actually affect
the display of the spreadsheet. The documentation has been replaced
by a valid, and more instructive, example.

The (undocumented) useEmbeddedCss property, and the functions
to test and set it are no longer needed. Rather than breaking
existing code by deleting them, I marked the functions deprecated.

This change borrows a change to LocaleFloatsTest from
pull request 1456, submitted a little over a week before this one.


## Improve NumberFormat Support

First phase of this change included correcting NumberFormat handling
in HTML Writer. Certain complex formats could not be handled without
changes to Style/NumberFormat, and I did not wish to combine those changes.

Once the original change had been pushed, I took this part of it back up.
HTML Writer can now handle conditions in formats like:
[Blue][>=3000.5]$#,##0.00;[Red][<0]$#,##0.00;$#,##0.00
In testing, I discovered several errors and omissions
in handling of some other formats.
These are now corrected, and tests added.
2020-05-18 12:43:18 +09:00
Owen Leibman 4f6d4af396
Save Excel 2010+ Functions Properly
For functions introduced in Excel 2010 and beyond, Excel saves them
in formulas with the xlfn_ prefix. PhpSpreadsheet does not do this;
as a result, when a spreadsheet so created is opened, the cells
which use the new functions display a #NAME? error.
This the cause of bug report 1246:
https://github.com/PHPOffice/PhpSpreadsheet/issues/1246
This change corrects that problem when the Xlsx writer encounters
a 2010+ formula for a cell or a conditional style. A new class
Writer/Xlsx/Xlfn, with 2 static methods,
is introduced to facilitate this change.

As part of the testing for this, I found some additional problems.
When an unknown function name is used, Excel generates a #NAME? error.
However, when an unknown function is used in PhpSpreadsheet:
  - if there are no parameters, it returns #VALUE!, which is wrong
  - if there are parameters, it throws an exception, which is horrible
Both of these situations will now return #NAME?
Tests have been added for these situations.

The MODE (and MODE.SNGL) function is not quite in alignment with Excel.
MODE(3, 3, 4, 4) returns 3 in both Excel and PhpSpreadsheet.
However, MODE(4, 3, 3, 4) returns 4 in Excel, but 3 in PhpSpreadsheet.
Both situations will now match Excel's result.
Also, Excel allows its parameters for MODE to be an array,
but PhpSpreadsheet did not; it now will.
There had not been any tests for MODE. Now there are.

The SHEET and SHEETS functions were introduced in Excel 2013,
but were not introduced in PhpSpreadsheet. They are now introduced
as DUMMY functions so that they can be parsed appropriately.

Finally, in common with the "rate" changes for which I am
creating a pull request at the same time as this one:
samples/Basic/13_CalculationCyclicFormulae
PhpUnit started reporting an error like "too much regression".
The test deals with an infinite cyclic formula, and allowed
the calculation engine to run for 100 cycles. The actual number of cycles
seems irrelevant for the purpose of this test. I changed it to 15,
and PhpUnit no longer complains.
2020-05-18 12:37:35 +09:00
Adrien Crivelli 414e5695ef
Update CHANGELOG 2020-05-17 19:52:34 +09:00
oleibman 9ae521cdd4
Fix RATE, PRICE, XIRR, and XNPV Functions (#1456)
There were about 20 skipped tests for RATE and PRICE marked
"This test should be fixed". This change does that by fixing
the code for those functions, validating the existing tests,
and adding new ones. XIRR and XNPV are also substantially changed.
As part of this change, the following functions also have minor changes:

  - isValidFrequency
  - COUPDAYBS
  - COUPNUM (additional tests)
  - DB
  - DDB

PhpUnit reports 100% coverage for all the changed functions.

Since I was dealing with skipped tests, I also fixed
tests/PhpSpreadsheetTests/Writer/Xlsx/LocaleFloatsTest,
which was being skipped in Windows. I also delete the temporary
file which it creates.
There is now only one remaining test which is skipped -
ODS Reader is not complete enough to run some tests against it.
Unfortunately, that test is too complicated for me to deal with now.

In researching this change, I found several places in the code where special code was added for Gnumeric claiming:

   - Gnumeric does not handle free-format string dates
   - Gnumeric adds extra options, not available in Excel,
     for the frequency parameter for functions such as YIELD
   - Gnumeric rounds the results for DB and DDB to 2 decimal places

None of these claims is true, at least not on a recent version
of Gnumeric, and the code which supports these differences is removed.
There did not appear to be any tests targeted for
these supposed properties of Gnumeric.

The PRICE function needed relatively minor changes - mostly
additional tests for invalid input. The main problem with the PRICE
tests is that Excel appears to have a bug. The algorithm is published:
https://support.office.com/en-us/article/price-function-3ea9deac-8dfa-436f-a7c8-17ea02c21b0a
The results that Excel returns for basis codes 2 and 3 appear to be
incorrect in many cases. I have segregated these tests into a
new test PRICE3. The results of these tests agree with the published
algorithm, and to the results for LibreOffice and Gnumeric.
The results returned by Excel do not agree with them.
The tests which remain in the test PRICE all use basis codes other
than 2 or 3, and all agree with Excel, LibreOffice, and Gnumeric.

For the RATE function, there appears to be a problem with how the
secant method was implemented. I studied the implementation of RATE
in Python numpy, and adapted its implementation of secant method.
The results now agree with numpy, and, more important, with Excel.

XIRR, which calls XNPV, permits its dates to be earlier than the
start date, whereas XNPV does not. I dealt with this by renaming
the existing XNPV function to xnpvOrdered, adding a parameter to
indicate whether start date has to be earliest. XNPV calls the new
function with that parameter set to TRUE, and XIRR calls it with
the parameter set to FALSE. Some additional error checking was
added to xnpvOrdered, and also to XIRR. XIRR tests benefited
from increasing the value of FINANCIAL_MAX_ITERATIONS.

Finally, since this change is very test-related:
samples/Basic/13_CalculationCyclicFormulae
PhpUnit started reporting an error like "too much regression".
The test deals with an infinite cyclic formula, and allowed
the calculation engine to run for 100 cycles. The actual number of cycles
seems irrelevant for the purpose of this test. I changed it to 15,
and PhpUnit no longer complains.
2020-05-17 19:50:01 +09:00
Adrien Crivelli 5f413b8a58
Keep sample bootstrap purely in samples 2020-05-17 18:51:13 +09:00
Adrien Crivelli e868e58d20
Allow to run an entire folder of tests
We now can do something like:

```sh
./vendor/bin/phpunit tests/PhpSpreadsheetTests/Reader/
```
2020-05-17 18:35:55 +09:00
oleibman 7517cdd008
Improve Coverage for CSV (#1475)
I believe that both CSV Reader and Writer are 100% covered now.

There were some errors uncovered during development.

The reader specifically permits encodings other than UTF-8 to be used.
However, fgetcsv will not properly handle other encodings.
I tried replacing it with fgets/iconv/strgetcsv, but that could not
handle line breaks within a cell, even for UTF-8.
This is, I'm sure, a very rare use case.
I eventually handled it by using php://memory to hold the translated
file contents for non-UTF8. There were no tests for this situation,
and now there are (probably too many).

"Contiguous" read was not handle correctly. There is a file
in samples which uses it. It was designed to read a large sheet,
and split it into three. The first sheet was corrrect, but the
second and third were almost entirely empty. This has been corrected,
and the sample code was adapted into a formal test with assertions
to confirm that it works as designed.

I made a minor documentation change. Unlike HTML, where you never
need a BOM because you can declare the encoding in the file,
a CSV with non-ASCII characters must explicitly include a BOM
for Excel to handle it correctly. This was explained in the Reading CSV
section, but was glossed over in the Writing CSV section, which I
have updated.
2020-05-17 18:15:18 +09:00
Adrien Crivelli 7e79782dae
Remove @throws comment
Those are extremely hard to maintain properly and bring almost
no value, especially if they are outdated
2020-05-16 20:33:25 +09:00