W3C

Submission of Test Suite Results

The purpose of the test suite is to demonstrate that the specifications can be implemented and that implementations are interoperable. To achieve this aim, the Working Group encourages implementors to submit results.

Results submitted by implementors will be published at the discretion of the Working Groups. When submitting results, you may indicate that you wish the results to be anonymous, in which case the results will still be published, but the product under test will not be identified.

You are welcome to make multiple submissions for different versions or variants of your product. The objective is to test implementability and interoperability, and multiple implementations based on substantially the same source code do not contribute significantly to this aim, so the WG may decide not to publish all your submissions.

Non-implementors are also welcome to submit results, especially in the case of products where the vendor has chosen not to do so. In such cases the WG will publish the results at its discretion, and will typically do so in a way that identifies the submitter but not the product under test.

The implementation against which results are reported does not need to be publicly available either at the time of submission or at any time subsequently. Submissions are welcome not only for open-source and commercial products at any stage of development, but also for research prototypes and in-house implementations where there is no intention to release a product.

W3C are interested in knowing how many independent implementations of the specifications exist, and may therefore ask questions about the extent to which multiple implementations are based on the same underlying technology.

Completeness of submissions

The Working Group naturally hopes that many implementations will pass as many tests as possible. However, evidence of implementations that are not yet complete or conformant is also welcome. In particular, if there are difficulties making it infeasible to implement some part of the specification, that is something the Working Group wants to know about.

Many tests have dependencies on optional features of the specification. For example, there are tests that require English-language formatting of numbers and dates (and a small number of tests for languages other than English). The specification does not require English or any other natural language to be supported by every implementation, and a product that does not support this feature may therefore report such a test as "not applicable", with no adverse implications on its conformance or quality. (There are also a few tests that are designed to be run only by products that do NOT implement a particular optional feature; again, if the test is not applicable to a particular product, the result should be reported as "not applicable", with no negative connotations.)

Another situation in which tests may be reported as "not applicable" is if they exceed resource limits. Some tests are designed explicitly to test the handling of extreme situations, such as formatting of 100-digit integers, where conformant implementations are perfectly entitled to reject such values. In addition, some tests (such as complex regular expressions) may take an unreasonable length of time on some implementations. Implementors are therefore perfectly entitled to report such tests as "not applicable", with no negative implications on conformance. Where many implementors refrain from running a particular test, this information is in itself useful to the Working Group.

Finally, there will always be some tests at any point in time whose results are contested by virtue of an unresolved bug report. Implementors submitting results are encouraged to report such tests as "disputed" in preference to indicating a test failure.

Since there are several legitimate reasons for not running a particular test, when this outcome is included in a submission, submitters are encouraged to include a comment that explains why.

Test suite versions

At the time of writing, the test suite is under continuous development. During this phase, submitted results will be treated as provisional; they are welcomed because they will help the Working Group to refine the machinery for analyzing and reporting results.

At some stage, frozen snapshots of the test suite will be made, with identified version numbers; at that point submitted results should identify which version of the test suite was executed.

Error codes

For test cases where an error is expected, the test case metadata always indicates an expected error code. The Working Group recognizes that it is difficult to develop tests in which no other error code is legitimate, so it has determined that where an expected error code is published for a test, an implementation that fails with a different error code should be regarded as passing the test. However, so that the WG can assess the extent to which error codes are in fact interoperable, this outcome must be identified explicitly when reporting results. (Note that for try/catch tests, where the test for a specific error code occurs within the query itself, an incorrect error code may result in test failure.)

Experience suggests that reporting "the wrong error" is often evidence of a product bug, so implementors are advised to check such outcomes carefully before concluding that a test can be treated as a pass.

Format for results submission

Results must be submitted in the form of an XML file conforming to a specific schema. The schema can be found within the test suite download at results.xsd, and in the same directory there are some speciment results files that illustrate the required format.

Each results file should reflect one implementation and one specification (that is, one of XPath 2.0, XPath 3.0, XQuery 1.0, or XQuery 3.0). The Working Group is primarily interested in results for XPath 3.0 and XQuery 3.0, but will also collate results for the older versions if submissions are received.

The results file is in three sections.

The <submission> element

The first section, the submission element, contains basic administrative information identifying the submitter, the test suite version, the implementation under test, and so on.

The <dependencies> element

The second section, the dependencies element, indicates which dependencies (other than the specification language) were satisifed when running the tests. For example, the entry:

<dependency type="feature" value="static-typing" satisfied="false"/>    
  

indicates that the implementation under test does not support the static typing feature, and that tests dependent on the static typing feature are therefore not run. (The test submission may include results for such tests with the outcome "not run", or it may simply omit these test cases.) Conversely, any tests which are designed for implementations that do NOT support static typing should be run, and should be reported in the test submission.

Where the submission includes an element of the form

<dependency type="feature" value="static-typing" satisfied="true"/>    
  

this indicates that the implementation under test DOES support the static typing feature, and the submission will then include results for tests that depend on this feature being present, and exclude result that depend on its absence.

It is also possible to report:

<dependency type="feature" value="static-typing" satisfied="both"/>    
  

This indicates that the product is capable of running with static typing either enabled or disabled, and that results for both cases are included in the submission.

In the absence of a dependency element for a particular dependency present in the test suite, the value satisfied="both" will be assumed.

The <test-set> elements

The bulk of the submission consists of a sequence of test-set elements corresponding to the test sets in the test catalog, each containing a sequence of test-case elements corresponding to the test cases in that test set.

For each test case, the outcome may be reported as one of the following:

ValueMeaning
passThe test was run and the assertion was satisfied
failThe test was run and the assertion was not satisfied
wrongErrorThe test was run; the expected results permitted an error to be reported; the actual result was an error, but not with the expected error code
n/aThe test was not run because it is not applicable to this implementation (for example, because it depends on optional features)
disputedThe test or its results, or the specification they rely on, are the subject of an unresolved bug report (which should be identified in the comment field)
tooBigThe test was not run because it exceeds limits imposed by the implementation or requires excessive resources
notRunThe test was not run for unspecified reasons (for example, an implementation might omit tests for features that have not been implemented)

The test sets and test cases may be reported in any order, but their names should be a subset of the names that appear in the test catalog; any non-matching names will be ignored.

If there is a test case in the test suite for which no result is reported in the results submission, the result that is assumed is notRun, which for statistical purposes is treated the same way as a test failure. If there is a legitimate reason for not running the test, the result reported should be one of n/a, disputed, or tooBig.

In the analysis of submitted results, the categories "pass" and "wrongError" are treated as "green"; the categories "n/a", "disputed", and "tooBig" are treated as "white", and the categories "fail" and "notRun" are treated as "red". When a percentage pass rate is quoted, the relevant figure is the ratio of "green" to ("green" + "red").

W3C will never challenge the results reported by an implementor, and makes no warranty about the correctness of any claims; nor will W3C intervene in any dispute between implementors and/or users about the interpretation or validity of the reported results. Implementors are encouraged to publish their test drivers so that the results they report can be independently verified.

Submission of test results does not of itself constitute a claim to conformance. There may be tests that are unrelated to conformance, and there may be conformance requirements (such as the requirement to report on implementation-defined features) than are unrelated to any test.

The submission process

When you are ready to submit your results to us, we ask that you follow the guidelines provided in Guidelines for Submitting XML Query Test Suite Results. These guidelines will tell you how to generate an XML result document that we can use to generate our reports. They will also tell you how to generate your own report from the XML result file.

If you have indicated that you wish your results to be displayed as “Anonymous”, then please send them to the XML Query WG Team Contact, Liam Quin, cc'ing w3t-archive@w3.org. Otherwise, please send them to the test suite coordinator, O'Neil Delpratt, cc'ing www-archive@w3.org.

We encourage you to send us results early, and then to send us updates as the XQTS progresses and as your implementation progresses.

Generating reports

W3C will generate reports from the submitted results files. These reports are available at (location TBA).

The XSLT 2.0 stylesheet used for generating reports is included in the test suite download, and users of the test suite may wish to use it to inspect results prior to submission. If the parameter results-collection is supplied to the stylesheet, it will report on all result files in the specified collection; otherwise, it will report on the result file supplied as the principal source document to the transformation.

The stylesheet generates a large collection of HTML files. Typically the transformation will specify a file such as reports/results.html as the principal output destination, and the output files will then all be generated within the reports directory.


Webmaster Last modified: $Date: 2013-01-14 19:02:21 $ by $Author: mkay $

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