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README -- Tcl test suite design document.
RCS: @(#) $Id$
Contents:
---------
1. Introduction
2. Incompatibilities with prior Tcl versions
1. Introduction:
----------------
This directory contains a set of validation tests for the Tcl commands
and C Library procedures for Tcl. Each of the files whose name ends
in ".test" is intended to fully exercise the functions in the C source
file that corresponds to the file prefix. The C functions and/or Tcl
commands tested by a given file are listed in the first line of the
file.
You can run the tests in three ways:
(a) type "make test" in ../unix; this will run all of the tests.
(b) type "tcltest <testFile> ?<option> <value>?
Command line options include:
-help display usage information
-verbose <level> set the level of verbosity to a substring
of "bps". See the "Test output" section
of the tcltest man page for an
explanation of this option.
-match <matchList> only run tests that match one or more of
the glob patterns in <matchList>
-skip <skipList> do not run tests that match one or more
of the glob patterns in <skipList>
-file <globPatternList>
only source test files that match one or
more of the glob patterns in
<globPatternList> (relative to the
"tests" directory). This option only
applies when you run the test suite with
the "all.tcl" file.
-notfile <globPatternList>
do not source test files that match one
or more of the patterns in
<globPatternList> (relative to the
"tests" directory). This option only
applies when you run the test suite with
the "all.tcl" file.
-constraints <list> tests with any constraints in <list> will
not be skipped. Not that elements of
<list> must exactly match the existing
constraints.
-limitconstraints <bool>
If 1, limit test runs to those tests that
match the constraints listed using the
-constraints flag. Use of this flag
requires use of the -constraints flag.
The default value is 0.
-tmpdir <dirname> put temporary files created by
::tcltest::makeFile and
::tcltest::makeDirectory in the named
directory. The default location is
::tcltest::workingDirectory.
-preservecore <level>
check for core files. If level is 0,
check for core files only when
cleanupTests is called from an all.tcl
file. If 1, also check at the end of
every test command. If 2, also save core
files in ::tcltest::temporaryDirectory.
The default level is 0.
(c) start up tcltest in this directory, then "source" the test
file (for example, type "source parse.test"). To run all
of the tests, type "source all.tcl". To use the options in
interactive mode, you can set their corresponding tcltest
namespace variables after loading the tcltest package.
For example, some of the tcltest variables are:
::tcltest::match
::tcltest::skip
::tcltest::testConstraints(nonPortable)
::tcltest::testConstraints(knownBug)
::tcltest::testConstraints(userInteractive)
Please see the tcltest man page for more information regarding how to
write and run tests.
Please note that the all.tcl file will source your new test file if
the filename matches the tests/*.test pattern (as it should). The
names of test files that contain regression (or glass-box) tests
should correspond to the Tcl or C code file that they are testing.
For example, the test file for the C file "tclCmdAH.c" is
"cmdAH.test". Test files that contain black-box tests may not
correspond to any Tcl or C code file so they should match the pattern
"*_bb.test".
Be sure your new test file can be run from any working directory.
Be sure no temporary files are left behind by your test file.
Be sure your tests can run cross-platform in both a build environment
as well as an installation environment. If your test file contains
tests that should not be run in one or more of those cases, please use
the constraints mechanism to skip those tests.
2. Incompatibilities with prior Tcl versions:
---------------------------------------------
1) Global variables such as VERBOSE, TESTS, and testConfig are now
renamed to use the new "tcltest" namespace.
old name new name
-------- --------
VERBOSE ::tcltest::verbose
TESTS ::tcltest::match
testConfig ::tcltest::testConstraints
2) VERBOSE values are no longer numeric.
3) When you run "make test", the working dir for the test suite is now
the one from which you called "make test", rather than the "tests"
directory. This change allows for both unix and windows test
suites to be run simultaneously without interference with each
other or with existing files. All tests must now run independently
of their working directory.
4) The "all" and "visual" files are now called "all.tcl" and
"visual_bb.test".
5) The "defs" file no longer exists.
6) Instead of creating a doAllTests file in the tests directory, to
run all nonPortable tests, just use the "-constraints nonPortable"
command line flag. If you are running interactively, you can set
the ::tcltest::testConstraints(nonPortable) variable to 1 (after
loading the tcltest package).
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