1Test::Unit::Lite(3)   User Contributed Perl Documentation  Test::Unit::Lite(3)
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NAME

6       Test::Unit::Lite - Unit testing without external dependencies
7

SYNOPSIS

9       Bundling the Test::Unit::Lite as a part of package distribution:
10
11         perl -MTest::Unit::Lite -e bundle
12
13       Running all test units:
14
15         perl -MTest::Unit::Lite -e all_tests
16
17       Using as a replacement for Test::Unit:
18
19         package FooBarTest;
20         use Test::Unit::Lite;   # unnecessary if module isn't directly used
21         use base 'Test::Unit::TestCase';
22
23         sub new {
24             my $self = shift()->SUPER::new(@_);
25             # your state for fixture here
26             return $self;
27         }
28
29         sub set_up {
30             # provide fixture
31         }
32         sub tear_down {
33             # clean up after test
34         }
35         sub test_foo {
36             my $self = shift;
37             my $obj = ClassUnderTest->new(...);
38             $self->assert_not_null($obj);
39             $self->assert_equals('expected result', $obj->foo);
40             $self->assert(qr/pattern/, $obj->foobar);
41         }
42         sub test_bar {
43             # test the bar feature
44         }
45

DESCRIPTION

47       This framework provides lighter version of Test::Unit framework.  It
48       implements some of the Test::Unit classes and methods needed to run
49       test units.  The Test::Unit::Lite tries to be compatible with public
50       API of Test::Unit. It doesn't implement all classes and methods at 100%
51       and only those necessary to run tests are available.
52
53       The Test::Unit::Lite can be distributed as a part of package
54       distribution, so the package can be distributed without dependency on
55       modules outside standard Perl distribution.  The Test::Unit::Lite is
56       provided as a single file.
57
58   Bundling the Test::Unit::Lite as a part of package distribution
59       The Test::Unit::Lite framework can be bundled to the package
60       distribution.  Then the Test::Unit::Lite module is copied to the inc
61       directory of the source directory for the package distribution.
62

FUNCTIONS

64       bundle
65           Copies Test::Unit::Lite modules into inc directory.  Creates
66           missing subdirectories if needed.  Silently overwrites previous
67           module if was existing.
68
69       all_tests
70           Creates new test runner for Test::Unit::Lite::AllTests suite which
71           searches for test units in t/tlib directory.
72

CLASSES

74   Test::Unit::TestCase
75       This is a base class for single unit test module.  The user's unit test
76       module can override the default methods that are simple stubs.
77
78       The MESSAGE argument is optional and is included to the default error
79       message when the assertion is false.
80
81       new The default constructor which just bless an empty anonymous hash
82           reference.
83
84       set_up
85           This method is called at the start of each test unit processing.
86           It is empty method and can be overridden in derived class.
87
88       tear_down
89           This method is called at the end of each test unit processing.  It
90           is empty method and can be overridden in derived class.
91
92       list_tests
93           Returns the list of test methods in this class and base classes.
94
95       fail([MESSAGE])
96           Immediate fail the test.
97
98       assert(ARG [, MESSAGE])
99           Checks if ARG expression returns true value.
100
101       assert_null(ARG [, MESSAGE])
102       assert_not_null(ARG [, MESSAGE])
103           Checks if ARG is defined or not defined.
104
105       assert_equals(ARG1, ARG2 [, MESSAGE])
106       assert_not_equals(ARG1, ARG2 [, MESSAGE])
107           Checks if ARG1 and ARG2 are equals or not equals.  If ARG1 and ARG2
108           look like numbers then they are compared with '==' operator,
109           otherwise the string 'eq' operator is used.
110
111       assert_num_equals(ARG1, ARG2 [, MESSAGE])
112       assert_num_not_equals(ARG1, ARG2 [, MESSAGE])
113           Force numeric comparison.
114
115       assert_str_equals(ARG1, ARG2 [, MESSAGE])
116       assert_str_not_equals(ARG1, ARG2 [, MESSAGE])
117           Force string comparison.
118
119       assert(qr/PATTERN/, ARG [, MESSAGE])
120       assert_matches(qr/PATTERN/, ARG [, MESSAGE])
121       assert_does_not_match(qr/PATTERN/, ARG [, MESSAGE])
122           Checks if ARG matches PATTER regexp.
123
124       assert_deep_equals(ARG1, ARG2 [, MESSAGE])
125       assert_deep_not_equals(ARG1, ARG2 [, MESSAGE])
126           Check if reference ARG1 is a deep copy of reference ARG2 or not.
127           The references can be deep structure.  If they are different, the
128           message will display the place where they start differing.
129
130   Test::Unit::TestSuite
131       This is a base class for test suite, which groups several test units.
132
133       empty_new([NAME])
134           Creates a fresh suite with no tests.
135
136       new([CLASS | TEST])
137           Creates a test suite from unit test name or class.  If a test suite
138           is provided as the argument, it merely returns that suite.  If a
139           test case is provided, it extracts all test case methods (see
140           Test::Unit::TestCase->list_test) from the test case into a new test
141           suite.
142
143       name
144           Contains the name of the current test suite.
145
146       units
147           Contains the list of test units.
148
149       add_test([TEST_CLASSNAME | TEST_OBJECT])
150           Adds the test object to a suite.
151
152       count_test_cases
153           Returns the number of test cases in this suite.
154
155       run Runs the test suite and output the results as TAP report.
156
157   Test::Unit::TestRunner
158       This is the test runner which outputs text report about finished test
159       suite.
160
161       new([$fh_out [, $fh_err]])
162           The constructor for whole test framework.  Its optional parameters
163           are filehandles for standard output and error messages.
164
165       fh_out
166           Contains the filehandle for standard output.
167
168       fh_err
169           Contains the filehandle for error messages.
170
171       suite
172           Contains the test suite object.
173
174       print_header
175           Called before running test suite.
176
177       print_error
178           Called after error was occurred on "set_up" or "tear_down" method.
179
180       print_failure
181           Called after test unit is failed.
182
183       print_pass
184           Called after test unit is passed.
185
186       print_footer
187           Called after running test suite.
188
189       start(TEST_SUITE)
190           Starts the test suite.
191
192   Test::Unit::Result
193       This object contains the results of test suite.
194
195       new Creates a new object.
196
197       messages
198           Contains the array of result messages.  The single message is a
199           hash which contains:
200
201           test
202               the test unit name,
203
204           type
205               the type of message (PASS, ERROR, FAILURE),
206
207           message
208               the text of message.
209
210       errors
211           Contains the number of collected errors.
212
213       failures
214           Contains the number of collected failures.
215
216       passes
217           Contains the number of collected passes.
218
219       add_error(TEST, MESSAGE)
220           Adds an error to the report.
221
222       add_failure(TEST, MESSAGE)
223           Adds an failure to the report.
224
225       add_pass(TEST, MESSAGE)
226           Adds a pass to the report.
227
228   Test::Unit::HarnessUnit
229       This is the test runner which outputs in the same format that
230       Test::Harness expects (Test Anything Protocol).  It is derived from
231       Test::Unit::TestRunner.
232
233   Test::Unit::Debug
234       The empty class which is provided for compatibility with original
235       Test::Unit framework.
236
237   Test::Unit::Lite::AllTests
238       The test suite which searches for test units in t/tlib directory.
239

COMPATIBILITY

241       Test::Unit::Lite should be compatible with public API of Test::Unit.
242       The Test::Unit::Lite also has some known incompatibilities:
243
244       • The test methods are sorted alphabetically.
245
246       • It implements new assertion method: assert_deep_not_equals.
247
248       • Does not support ok, assert(CODEREF, @ARGS) and multi_assert.
249
250       "Test::Unit::Lite" is compatible with Test::Assert assertion functions.
251

EXAMPLES

253   t/tlib/SuccessTest.pm
254       This is the simple unit test module.
255
256         package SuccessTest;
257
258         use strict;
259         use warnings;
260
261         use base 'Test::Unit::TestCase';
262
263         sub test_success {
264           my $self = shift;
265           $self->assert(1);
266         }
267
268         1;
269
270   t/all_tests.t
271       This is the test script for Test::Harness called with "make test".
272
273         #!/usr/bin/perl
274
275         use strict;
276         use warnings;
277
278         use File::Spec;
279         use Cwd;
280
281         BEGIN {
282             unshift @INC, map { /(.*)/; $1 } split(/:/, $ENV{PERL5LIB}) if defined $ENV{PERL5LIB} and ${^TAINT};
283
284             my $cwd = ${^TAINT} ? do { local $_=getcwd; /(.*)/; $1 } : '.';
285             unshift @INC, File::Spec->catdir($cwd, 'inc');
286             unshift @INC, File::Spec->catdir($cwd, 'lib');
287         }
288
289         use Test::Unit::Lite;
290
291         local $SIG{__WARN__} = sub { require Carp; Carp::confess("Warning: $_[0]") };
292
293         Test::Unit::HarnessUnit->new->start('Test::Unit::Lite::AllTests');
294
295   t/test.pl
296       This is the optional script for calling test suite directly.
297
298         #!/usr/bin/perl
299
300         use strict;
301         use warnings;
302
303         use File::Basename;
304         use File::Spec;
305         use Cwd;
306
307         BEGIN {
308             chdir dirname(__FILE__) or die "$!";
309             chdir '..' or die "$!";
310
311             unshift @INC, map { /(.*)/; $1 } split(/:/, $ENV{PERL5LIB}) if defined $ENV{PERL5LIB} and ${^TAINT};
312
313             my $cwd = ${^TAINT} ? do { local $_=getcwd; /(.*)/; $1 } : '.';
314             unshift @INC, File::Spec->catdir($cwd, 'inc');
315             unshift @INC, File::Spec->catdir($cwd, 'lib');
316         }
317
318         use Test::Unit::Lite;
319
320         local $SIG{__WARN__} = sub { require Carp; Carp::confess("Warning: $_[0]") };
321
322         all_tests;
323
324       This is perl equivalent of shell command line:
325
326         perl -Iinc -Ilib -MTest::Unit::Lite -w -e all_tests
327

SEE ALSO

329       Test::Unit, Test::Assert.
330

TESTS

332       The Test::Unit::Lite was tested as a Test::Unit replacement for
333       following distributions: Test::C2FIT, XAO::Base, Exception::Base.
334

BUGS

336       If you find the bug or want to implement new features, please report it
337       at <https://github.com/dex4er/perl-Test-Unit-Lite/issues>
338
339       The code repository is available at
340       <http://github.com/dex4er/perl-Test-Unit-Lite>
341

AUTHOR

343       Piotr Roszatycki <dexter@cpan.org>
344

LICENSE

346       Copyright (c) 2007-2009, 2012 by Piotr Roszatycki <dexter@cpan.org>.
347
348       This program is free software; you can redistribute it and/or modify it
349       under the same terms as Perl itself.
350
351       See <http://www.perl.com/perl/misc/Artistic.html>
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355perl v5.34.0                      2021-07-23               Test::Unit::Lite(3)
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