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import os
import pytest
from pluginbase import PluginBase
from buildstream._elementfactory import _ElementFactory
from buildstream._sourcefactory import _SourceFactory
from buildstream import PluginError
DATA_DIR = os.path.join(
os.path.dirname(os.path.realpath(__file__)),
'basics',
)
# Simple fixture to create a PluginBase object that
# we use for loading plugins.
@pytest.fixture()
def plugin_fixture():
return {
'base' : PluginBase(package='buildstream.plugins')
}
##############################################################
# Basics: test the fixture, test we can create the factories #
##############################################################
def test_fixture(plugin_fixture):
assert(isinstance(plugin_fixture['base'], PluginBase))
def test_source_factory(plugin_fixture):
factory = _SourceFactory(plugin_fixture['base'])
assert(isinstance(factory, _SourceFactory))
def test_element_factory(plugin_fixture):
factory = _ElementFactory(plugin_fixture['base'])
assert(isinstance(factory, _ElementFactory))
##############################################################
# Check that we can load custom sources & elements #
##############################################################
@pytest.mark.datafiles(os.path.join(DATA_DIR, 'customsource'))
def test_custom_source(plugin_fixture, datafiles):
factory = _SourceFactory(plugin_fixture['base'],
[ os.path.join(datafiles.dirname, datafiles.basename) ])
assert(isinstance(factory, _SourceFactory))
foo_type = factory.lookup('foo')
assert(foo_type.__name__ == 'FooSource')
@pytest.mark.datafiles(os.path.join(DATA_DIR, 'customelement'))
def test_custom_element(plugin_fixture, datafiles):
factory = _ElementFactory(plugin_fixture['base'],
[ os.path.join(datafiles.dirname, datafiles.basename) ])
assert(isinstance(factory, _ElementFactory))
foo_type = factory.lookup('foo')
assert(foo_type.__name__ == 'FooElement')
##############################################################
# Check plugin loading failure modes #
##############################################################
def test_missing_source(plugin_fixture):
factory = _SourceFactory(plugin_fixture['base'])
assert(isinstance(factory, _SourceFactory))
# Test fails if PluginError is not raised
with pytest.raises(PluginError) as exc:
foo_type = factory.lookup('foo')
def test_missing_element(plugin_fixture):
factory = _ElementFactory(plugin_fixture['base'])
assert(isinstance(factory, _ElementFactory))
# Test fails if PluginError is not raised
with pytest.raises(PluginError) as exc:
foo_type = factory.lookup('foo')
# Load one factory with 2 plugin directories both containing a foo plugin
@pytest.mark.datafiles(DATA_DIR)
def test_conflict_source(plugin_fixture, datafiles):
plugins1 = os.path.join(datafiles.dirname, datafiles.basename, 'customsource')
plugins2 = os.path.join(datafiles.dirname, datafiles.basename, 'anothersource')
with pytest.raises(PluginError) as exc:
factory = _SourceFactory(plugin_fixture['base'], [ plugins1, plugins2 ])
# Load one factory with 2 plugin directories both containing a foo plugin
@pytest.mark.datafiles(DATA_DIR)
def test_conflict_element(plugin_fixture, datafiles):
plugins1 = os.path.join(datafiles.dirname, datafiles.basename, 'customelement')
plugins2 = os.path.join(datafiles.dirname, datafiles.basename, 'anotherelement')
with pytest.raises(PluginError) as exc:
factory = _ElementFactory(plugin_fixture['base'], [ plugins1, plugins2 ])
# Load a factory with a plugin that returns a value instead of a Source subclass
@pytest.mark.datafiles(os.path.join(DATA_DIR, 'notatype'))
def test_source_notatype(plugin_fixture, datafiles):
with pytest.raises(PluginError) as exc:
factory = _SourceFactory(plugin_fixture['base'],
[ os.path.join(datafiles.dirname, datafiles.basename) ])
# Load a factory with a plugin that returns a value instead of a Element subclass
@pytest.mark.datafiles(os.path.join(DATA_DIR, 'notatype'))
def test_element_notatype(plugin_fixture, datafiles):
with pytest.raises(PluginError) as exc:
factory = _ElementFactory(plugin_fixture['base'],
[ os.path.join(datafiles.dirname, datafiles.basename) ])
# Load a factory with a plugin that returns a type which is not a Source subclass
@pytest.mark.datafiles(os.path.join(DATA_DIR, 'wrongtype'))
def test_source_wrongtype(plugin_fixture, datafiles):
with pytest.raises(PluginError) as exc:
factory = _SourceFactory(plugin_fixture['base'],
[ os.path.join(datafiles.dirname, datafiles.basename) ])
# Load a factory with a plugin that returns a type which is not a Element subclass
@pytest.mark.datafiles(os.path.join(DATA_DIR, 'wrongtype'))
def test_element_wrongtype(plugin_fixture, datafiles):
with pytest.raises(PluginError) as exc:
factory = _ElementFactory(plugin_fixture['base'],
[ os.path.join(datafiles.dirname, datafiles.basename) ])
# Load a factory with a plugin which fails to provide a setup() function
@pytest.mark.datafiles(os.path.join(DATA_DIR, 'nosetup'))
def test_source_missing_setup(plugin_fixture, datafiles):
with pytest.raises(PluginError) as exc:
factory = _SourceFactory(plugin_fixture['base'],
[ os.path.join(datafiles.dirname, datafiles.basename) ])
# Load a factory with a plugin which fails to provide a setup() function
@pytest.mark.datafiles(os.path.join(DATA_DIR, 'nosetup'))
def test_element_missing_setup(plugin_fixture, datafiles):
with pytest.raises(PluginError) as exc:
factory = _ElementFactory(plugin_fixture['base'],
[ os.path.join(datafiles.dirname, datafiles.basename) ])
# Load a factory with a plugin which provides a setup symbol that is not a function
@pytest.mark.datafiles(os.path.join(DATA_DIR, 'badsetup'))
def test_source_bad_setup(plugin_fixture, datafiles):
with pytest.raises(PluginError) as exc:
factory = _SourceFactory(plugin_fixture['base'],
[ os.path.join(datafiles.dirname, datafiles.basename) ])
# Load a factory with a plugin which provides a setup symbol that is not a function
@pytest.mark.datafiles(os.path.join(DATA_DIR, 'badsetup'))
def test_element_bad_setup(plugin_fixture, datafiles):
with pytest.raises(PluginError) as exc:
factory = _ElementFactory(plugin_fixture['base'],
[ os.path.join(datafiles.dirname, datafiles.basename) ])
##############################################################
# Check we can load different contexts of plugin #
##############################################################
# Load two factories, both of which define a different 'foo' plugin
@pytest.mark.datafiles(DATA_DIR)
def test_source_multicontext(plugin_fixture, datafiles):
plugins1 = os.path.join(datafiles.dirname, datafiles.basename, 'customsource')
plugins2 = os.path.join(datafiles.dirname, datafiles.basename, 'anothersource')
factory1 = _SourceFactory(plugin_fixture['base'], [ plugins1 ])
factory2 = _SourceFactory(plugin_fixture['base'], [ plugins2 ])
assert(isinstance(factory1, _SourceFactory))
assert(isinstance(factory2, _SourceFactory))
foo_type1 = factory1.lookup('foo')
foo_type2 = factory2.lookup('foo')
assert(foo_type1.__name__ == 'FooSource')
assert(foo_type2.__name__ == 'AnotherFooSource')
# Load two factories, both of which define a different 'foo' plugin
@pytest.mark.datafiles(DATA_DIR)
def test_element_multicontext(plugin_fixture, datafiles):
plugins1 = os.path.join(datafiles.dirname, datafiles.basename, 'customelement')
plugins2 = os.path.join(datafiles.dirname, datafiles.basename, 'anotherelement')
factory1 = _ElementFactory(plugin_fixture['base'], [ plugins1 ])
factory2 = _ElementFactory(plugin_fixture['base'], [ plugins2 ])
assert(isinstance(factory1, _ElementFactory))
assert(isinstance(factory2, _ElementFactory))
foo_type1 = factory1.lookup('foo')
foo_type2 = factory2.lookup('foo')
assert(foo_type1.__name__ == 'FooElement')
assert(foo_type2.__name__ == 'AnotherFooElement')
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