NAME
Test::Class::Moose - Test::Class + Moose
VERSION
version 0.07
SYNOPSIS
package TestsFor::DateTime;
use Test::Class::Moose;
use DateTime;
# this usually goes in a base class
INIT { Test::Class::Moose->new->runtests }
# methods that begin with test_ are test methods.
sub test_constructor {
my ( $test, $report ) = @_;
$report->plan(3); # strictly optional
can_ok 'DateTime', 'new';
my %args = (
year => 1967,
month => 6,
day => 20,
);
isa_ok my $date = DateTime->new(%args), 'DateTime';
is $date->year, $args{year}, '... and the year should be correct';
}
1;
DESCRIPTION
This is ALPHA code. I encourage you to give it a shot if you want test classes based on Moose, along with reporting. Feedback welcome as we try to improve it.
This is a proof of concept for writing Test::Class-style tests with Moose. Better docs will come later. You should already know how to use Moose and Test::Class.
BASICS
Inheriting from Test::Class::Moose
Just use Test::Class::Moose
. That's all. You'll get all Test::Most test functions, too, along with strict
and warnings
. You can use all Moose behavior, too.
Declare a test method
All method names that begin with test_
are test methods. Methods that do not are not test methods.
sub test_this_is_a_method {
my $test = shift;
$test->this_is_not_a_test_method;
ok 1, 'whee!';
}
sub this_is_not_a_test_method {
my $test = shift;
# but you can, of course, call it like normal
}
Plans
No plans needed. The test suite declares a plan of the number of test classes.
Each test class is a subtest declaring a plan of the number of test methods.
Each test method relies on an implicit done_testing
call.
If you prefer, you can declare a plan in a test method:
sub test_something {
my ( $test, $report ) = @_;
$report->plan($num_tests);
...
}
You can only call plan()
once for a given test method report. Otherwise, you must call add_to_plan()
. For example, with a method modifier:
after 'test_something' => sub {
my ( $test, $report ) = @_;
$report->add_to_plan($num_extra_tests);
};
Please note that if you call plan
, the plan will still show up at the end of the subtest run, but you'll get the desired failure if the number of tests run does not match the plan.
Inheriting from another Test::Class::Moose class
List it as the extends
in the import list.
package TestsFor::Some::Class::Subclass;
use Test::Class::Moose extends => 'TestsFor::Some::Class';
sub test_me {
my $test = shift;
my $class = $test->test_class;
ok 1, "I overrode my parent! ($class)";
}
before 'test_this_baby' => sub {
my $test = shift;
my $class = $test->test_class;
pass "This should run before my parent method ($class)";
};
sub this_should_not_run {
my $test = shift;
fail "We should never see this test";
}
sub test_this_should_be_run {
for ( 1 .. 5 ) {
pass "This is test number $_ in this method";
}
}
1;
TEST CONTROL METHODS
Do not run tests in test control methods. This will cause the test control method to fail (this is a feature, not a bug). If a test control method fails, the class/method will fail and testing for that class should stop.
Every test control method will be passed two arguments. The first is the $test
invocant. The second is an object implementing Test::Class::Moose::Role::Reporting. You may find that the notes
hashref is a handy way of recording information you later wish to use if you call $test_suite->test_report
.
These are:
test_startup
sub test_startup { my ( $test, $report ) = @_; $test->next::method; # more startup }
Runs at the start of each test class. If you need to know the name of the class you're running this in (though usually you shouldn't), use
$test->test_class
, or thename
method on the$report
object.The
$report
object is a Test::Class::Moose::Report::Class object.test_setup
sub test_setup { my ( $test, $report ) = @_; $test->next::method; # more setup }
Runs at the start of each test method. If you must know the name of the test you're about to run, you can call
$report->name
.The
$report
object is a Test::Class::Moose::Report::Method object.test_teardown
sub test_teardown { my ( $test, $report ) = @_; # more teardown $test->next::method; }
Runs at the end of each test method.
The
$report
object is a Test::Class::Moose::Report::Method object.test_shutdown
sub test_shutdown { my ( $test, $report ) = @_; # more teardown $test->next::method; }
Runs at the end of each test class.
The
$report
object is a Test::Class::Moose::Report::Class object.
To override a test control method, just remember that this is OO:
sub test_setup {
my $test = shift;
$test->next::method; # optional to call parent test_setup
# more setup code here
}
RUNNING THE TEST SUITE
use Test::Class::Moose::Load 't/lib';
Test::Class::Moose->new->runtests
Or:
my $test_suite = Test::Class::Moose->new({
show_timing => 1,
randomize => 0,
statistics => 1,
});
# do something
$test_suite->runtests;
The attributes passed in the constructor are not directly available from the Test::Class::Moose instance. They're available in Test::Class::Moose::Config and to avoid namespace pollution, we do not delegate the attributes directly as a result. If you need them at runtime, you'll need to access the test_configuration
attribute:
my $builder = $test_suite->test_configuration->builder;
Contructor Attributes
show_timing
Boolean. Will display verbose information on the amount of time it takes each test class/test method to run.
statistics
Boolean. Will display number of classes, test methods and tests run.
randomize
Boolean. Will run test methods in a random order.
builder
Defaults to
Test::Builder->new
. You can supply your own builder if you want, but it must conform to the Test::Builder interface. We make no guarantees about which part of the interface it needs.include
Regex. If present, only test methods whose name matches
include
will be included. However, they must still start withtest_
.For example:
my $test_suite = Test::Class::Moose->new({ include => qr/customer/, });
The above constructor will let you match test methods named
test_customer
andtest_customer_account
, but will not suddenly match a method nameddefault_customer
.By enforcing the leading
test_
behavior, we don't surprise developers who are trying to figure out whydefault_customer
is being run as a test. This means aninclude
such as/^customer.*/
will never run any tests.exclude
Regex. If present, only test methods whose names don't match
exclude
will be included. However, they must still start withtest_
. Seeinclude
.
Skipping Classes and Methods
If you wish to skip a class, set the reason in the test_startup
method.
sub test_startup {
my ( $self, $report ) = @_;
$test->test_skip("I don't want to run this class");
}
If you wish to skip an individual method, do so in the test_setup
method.
sub test_setup {
my ( $self, $report ) = @_;
if ( 'test_time_travel' eq $report->name ) {
$test->test_skip("Time travel not yet available");
}
}
THINGS YOU CAN OVERRIDE
... but probably shouldn't.
As a general rule, methods beginning with /^test_/
are reserved for Test::Class::Moose. This makes it easier to remember what you can and cannot override.
test_configuration
my $test_configuration = $test->test_configuration;
Returns the Test::Class::Moose::Config object.
test_report
my $report = $test->test_report;
Returns the Test::Class::Moose::Report object. Useful if you want to do your own reporting and not rely on the default output provided with the statistics
boolean option.
test_class
my $class = $test->test_class;
Returns the name for this test class. Useful if you rebless an object (such as applying a role at runtime) and don't want to lose the original class name.
test_classes
You may override this in a subclass. Currently returns a sorted list of all loaded classes that inherit directly or indirectly through Test::Class::Moose
test_methods
You may override this in a subclass. Currently returns all methods in a test class that start with test_
(except for the test control methods).
Please note that the behavior for include
and exclude
is also contained in this method. If you override it, you will need to account for those yourself.
runtests
If you really, really want to change how this module works, you can override the runtests
method. We don't recommend it.
Returns the Test::Class::Moose instance.
import
Sadly, we have an import
method. This is used to automatically provide you with all of the Test::Most behavior.
SAMPLE TAP OUTPUT
We use nested tests (subtests) at each level:
1..2
#
# Executing tests for TestsFor::Basic::Subclass
#
1..3
# TestsFor::Basic::Subclass->test_me()
ok 1 - I overrode my parent! (TestsFor::Basic::Subclass)
1..1
ok 1 - test_me
# TestsFor::Basic::Subclass->test_this_baby()
ok 1 - This should run before my parent method (TestsFor::Basic::Subclass)
ok 2 - whee! (TestsFor::Basic::Subclass)
1..2
ok 2 - test_this_baby
# TestsFor::Basic::Subclass->test_this_should_be_run()
ok 1 - This is test number 1 in this method
ok 2 - This is test number 2 in this method
ok 3 - This is test number 3 in this method
ok 4 - This is test number 4 in this method
ok 5 - This is test number 5 in this method
1..5
ok 3 - test_this_should_be_run
ok 1 - TestsFor::Basic::Subclass
#
# Executing tests for TestsFor::Basic
#
1..2
# TestsFor::Basic->test_me()
ok 1 - test_me() ran (TestsFor::Basic)
ok 2 - this is another test (TestsFor::Basic)
1..2
ok 1 - test_me
# TestsFor::Basic->test_this_baby()
ok 1 - whee! (TestsFor::Basic)
1..1
ok 2 - test_this_baby
ok 2 - TestsFor::Basic
# Test classes: 2
# Test methods: 5
# Total tests run: 11
ok
All tests successful.
Files=1, Tests=2, 2 wallclock secs ( 0.03 usr 0.00 sys + 0.27 cusr 0.01 csys = 0.31 CPU)
Result: PASS
REPORTING
See Test::Class::Moose::Report for more detailed information on reporting.
Reporting features are subject to change.
Sometimes you want more information about your test classes, it's time to do some reporting. Maybe you even want some tests for your reporting. If you do that, run the test suite in a subtest (because the plans will otherwise be wrong).
#!/usr/bin/env perl
use lib 'lib';
use Test::Most;
use Test::Class::Moose::Load qw(t/lib);
my $test_suite = Test::Class::Moose->new;
subtest 'run the test suite' => sub {
$test_suite->runtests;
};
my $report = $test_suite->test_report;
foreach my $class ( $report->all_test_classes ) {
my $class_name = $class->name;
ok !$class->is_skipped, "$class_name was not skipped";
subtest "$class_name methods" => sub {
foreach my $method ( $class->all_test_methods ) {
my $method_name = $method->name;
ok !$method->is_skipped, "$method_name was not skipped";
cmp_ok $method->num_tests, '>', 0,
'... and some tests should have been run';
diag "Run time for $method_name: ".$method->time->duration;
}
};
my $time = $class->time;
diag "Run time for $class_name: ".$class->time->duration;
my $real = $time->real;
my $user = $time->user;
my $system = $time->system;
# do with these as you will
}
diag "Number of test classes: " . $report->num_test_classes;
diag "Number of test methods: " . $report->num_test_methods;
diag "Number of tests: " . $report->num_tests;
done_testing;
If you just want to output reporting information, you do not need to run the test suite in a subtest:
my $test_suite = Test::Class::Moose->new->runtests;
my $report = $test_suite->test_report;
...
Or even shorter:
my $report = Test::Class::Moose->new->runtests->test_report;
EXTRAS
If you would like Test::Class::Moose to take care of loading your classes for you, see Test::Class::Moose::Role::AutoUse in this distribution.
TODO
All TODO items have currently been implemented.
BUGS
Please report any bugs or feature requests to bug-test-class-moose at rt.cpan.org
, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Class-Moose. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.
SUPPORT
You can find documentation for this module with the perldoc command.
perldoc Test::Class::Moose
You can also look for information at:
RT: CPAN's request tracker (report bugs here)
AnnoCPAN: Annotated CPAN documentation
CPAN Ratings
Search CPAN
SEE ALSO
-
I always pointed people to this when they would ask about Test::Class + Moose, but I would always hear "that's not quite what I'm looking for". I don't quite understand what the reasoning was, but I strongly encourage you to take a look at Test::Routine.
-
Test::Routine, but with Moo instead of Moose.
-
xUnit-style testing in Perl.
ACKNOWLEDGEMENTS
Thanks to Tom Beresford (beresfordt) for spotting an issue when a class has no test methods.
Thanks to Judioo for adding the randomize attribute.
Thanks to Adrian Howard for Test::Class.
AUTHOR
Curtis "Ovid" Poe <ovid@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2013 by Curtis "Ovid" Poe.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.