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test_source_root.py
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/
test_source_root.py
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# Copyright 2015 Pants project contributors (see CONTRIBUTORS.md).
# Licensed under the Apache License, Version 2.0 (see LICENSE).
from pants.source.source_root import (SourceRoot, SourceRootCategories, SourceRootConfig,
SourceRootFactory, SourceRootTrie)
from pants_test.test_base import TestBase
# Shorthand, to cut some verbosity down in the tests.
UNKNOWN = SourceRootCategories.UNKNOWN
SOURCE = SourceRootCategories.SOURCE
TEST = SourceRootCategories.TEST
THIRDPARTY = SourceRootCategories.THIRDPARTY
class SourceRootTest(TestBase):
def test_source_root_trie(self):
trie = SourceRootTrie(SourceRootFactory({
'jvm': ('java', 'scala'),
'py': ('python',)
}))
self.assertIsNone(trie.find('src/java/org/pantsbuild/foo/Foo.java'))
def root(path, langs):
return SourceRoot(path, langs, UNKNOWN)
# Wildcard at the end.
trie.add_pattern('src/*')
self.assertEqual(root('src/java', ('java',)),
trie.find('src/java/org/pantsbuild/foo/Foo.java'))
self.assertEqual(root('my/project/src/java', ('java',)),
trie.find('my/project/src/java/org/pantsbuild/foo/Foo.java'))
self.assertEqual(root('src/python', ('python',)),
trie.find('src/python/pantsbuild/foo/foo.py'))
self.assertEqual(root('my/project/src/python', ('python',)),
trie.find('my/project/src/python/org/pantsbuild/foo/foo.py'))
# Overlapping pattern.
trie.add_pattern('src/main/*')
self.assertEqual(root('src/main/java', ('java',)),
trie.find('src/main/java/org/pantsbuild/foo/Foo.java'))
self.assertEqual(root('my/project/src/main/java', ('java',)),
trie.find('my/project/src/main/java/org/pantsbuild/foo/Foo.java'))
self.assertEqual(root('src/main/python', ('python',)),
trie.find('src/main/python/pantsbuild/foo/foo.py'))
self.assertEqual(root('my/project/src/main/python', ('python',)),
trie.find('my/project/src/main/python/org/pantsbuild/foo/foo.py'))
# Wildcard in the middle.
trie.add_pattern('src/*/code')
self.assertEqual(root('src/java/code', ('java',)),
trie.find('src/java/code/org/pantsbuild/foo/Foo.java'))
self.assertEqual(root('my/project/src/java/code', ('java',)),
trie.find('my/project/src/java/code/org/pantsbuild/foo/Foo.java'))
self.assertEqual(root('src/python/code', ('python',)),
trie.find('src/python/code/pantsbuild/foo/foo.py'))
self.assertEqual(root('my/project/src/python/code', ('python',)),
trie.find('my/project/src/python/code/org/pantsbuild/foo/foo.py'))
# Verify that the now even-more-overlapping pattern still works.
self.assertEqual(root('src/main/java', ('java',)),
trie.find('src/main/java/org/pantsbuild/foo/Foo.java'))
self.assertEqual(root('my/project/src/main/java', ('java',)),
trie.find('my/project/src/main/java/org/pantsbuild/foo/Foo.java'))
self.assertEqual(root('src/main/python', ('python',)),
trie.find('src/main/python/pantsbuild/foo/foo.py'))
self.assertEqual(root('my/project/src/main/python', ('python',)),
trie.find('my/project/src/main/python/org/pantsbuild/foo/foo.py'))
# Verify that we take the first matching prefix.
self.assertEqual(root('src/java', ('java',)),
trie.find('src/java/src/python/Foo.java'))
# Test canonicalization.
self.assertEqual(root('src/jvm', ('java', 'scala')),
trie.find('src/jvm/org/pantsbuild/foo/Foo.java'))
self.assertEqual(root('src/jvm', ('java', 'scala')),
trie.find('src/jvm/org/pantsbuild/foo/Foo.scala'))
self.assertEqual(root('src/py', ('python',)),
trie.find('src/py/pantsbuild/foo/foo.py'))
# Test fixed roots.
trie.add_fixed('mysrc/scalastuff', ('scala',))
self.assertEqual(('mysrc/scalastuff', ('scala',), UNKNOWN),
trie.find('mysrc/scalastuff/org/pantsbuild/foo/Foo.scala'))
self.assertIsNone(trie.find('my/project/mysrc/scalastuff/org/pantsbuild/foo/Foo.scala'))
# Verify that a fixed root wins over a pattern that is a prefix of it
# (e.g., that src/go/src wins over src/go).
trie.add_fixed('src/go/src', ('go',))
self.assertEqual(root('src/go/src', ('go',)),
trie.find('src/go/src/foo/bar/baz.go'))
def test_source_root_trie_traverse(self):
def make_trie() -> SourceRootTrie:
return SourceRootTrie(SourceRootFactory({
'jvm': ('java', 'scala'),
'py': ('python',)
}))
trie = make_trie()
self.assertEqual(set(), trie.traverse())
trie.add_pattern('src/*')
trie.add_pattern('src/main/*')
self.assertEqual({
('src/*', ('jvm','py')),
('src/main/*', ('jvm', 'py'))
}, trie.traverse())
trie = make_trie()
trie.add_pattern('*')
trie.add_pattern('src/*/code')
trie.add_pattern('src/main/*/code')
trie.add_pattern('src/main/*')
trie.add_pattern('src/main/*/foo')
self.assertEqual({
('*', ('jvm', 'py')),
('src/*/code', ('jvm', 'py')),
('src/main/*/code', ('jvm', 'py')),
('src/main/*', ('jvm', 'py')),
('src/main/*', ('jvm', 'py')),
('src/main/*/foo', ('jvm', 'py'))
}, trie.traverse())
trie = make_trie()
trie.add_fixed('src/scala-source-code', ('scala',))
trie.add_pattern('src/*/code')
trie.add_pattern('src/main/*/code')
self.assertEqual({
('src/*/code', ('jvm', 'py')),
('src/scala-source-code', ('scala',)),
('src/main/*/code', ('jvm', 'py'))
}, trie.traverse())
def test_fixed_source_root_at_buildroot(self):
trie = SourceRootTrie(SourceRootFactory({}))
trie.add_fixed('', ('proto',))
self.assertEqual(('', ('proto',), UNKNOWN),
trie.find('foo/proto/bar/baz.proto'))
def test_source_root_pattern_at_buildroot(self):
trie = SourceRootTrie(SourceRootFactory({}))
trie.add_pattern('*')
self.assertEqual(('java', ('java',), UNKNOWN),
trie.find('java/bar/baz.proto'))
def test_invalid_patterns(self):
trie = SourceRootTrie(SourceRootFactory({}))
# Bad normalization.
self.assertRaises(SourceRootTrie.InvalidPath, lambda: trie.add_fixed('foo/bar/', ('bar',)))
self.assertRaises(SourceRootTrie.InvalidPath, lambda: trie.add_pattern('foo//*', ('java',)))
self.assertRaises(SourceRootTrie.InvalidPath, lambda: trie.add_pattern('foo/*/', ('java',)))
# Asterisk in fixed pattern.
self.assertRaises(SourceRootTrie.InvalidPath, lambda: trie.add_fixed('src/*', ('java',)))
def test_trie_traversal(self):
trie = SourceRootTrie(SourceRootFactory({}))
trie.add_pattern('foo1/bar1/baz1')
trie.add_pattern('foo1/bar1/baz2/qux')
trie.add_pattern('foo1/bar2/baz1')
trie.add_pattern('foo1/bar2/baz2')
trie.add_pattern('foo2/bar1')
trie.add_fixed('fixed1/bar1', ['lang1'], SOURCE)
trie.add_fixed('fixed2/bar2', ['lang2'], TEST)
# Test raw traversal.
self.assertEqual({('baz1', (), UNKNOWN),
('baz2/qux', (), UNKNOWN)},
set(trie._root.children['foo1'].children['bar1'].subpatterns()))
self.assertEqual({('bar1/baz1', (), UNKNOWN),
('bar1/baz2/qux', (), UNKNOWN),
('bar2/baz1', (), UNKNOWN),
('bar2/baz2', (), UNKNOWN)},
set(trie._root.children['foo1'].subpatterns()))
self.assertEqual({('foo1/bar1/baz1', (), UNKNOWN),
('foo1/bar1/baz2/qux', (), UNKNOWN),
('foo1/bar2/baz1', (), UNKNOWN),
('foo1/bar2/baz2', (), UNKNOWN),
('foo2/bar1', (), UNKNOWN),
('^/fixed1/bar1', ('lang1',), SOURCE),
('^/fixed2/bar2', ('lang2',), TEST)},
set(trie._root.subpatterns()))
# Test the fixed() method.
self.assertEqual({('fixed1/bar1', ('lang1',), SOURCE),
('fixed2/bar2', ('lang2',), TEST)},
set(trie.fixed()))
def test_all_roots(self):
self.create_dir('contrib/go/examples/3rdparty/go')
self.create_dir('contrib/go/examples/src/go/src')
self.create_dir('src/java')
self.create_dir('src/python')
self.create_dir('src/example/java')
self.create_dir('src/example/python')
self.create_dir('my/project/src/java')
self.create_dir('fixed/root/jvm')
self.create_dir('not/a/srcroot/java')
options = {
'pants_ignore': [],
'source_root_patterns': ['src/*', 'src/example/*'],
'source_roots': {
# Fixed roots should trump patterns which would detect contrib/go/examples/src/go here.
'contrib/go/examples/src/go/src': ['go'],
# Dir does not exist, should not be listed as a root.
'java': ['java']}
}
options.update(self.options['']) # We need inherited values for pants_workdir etc.
self.context(for_subsystems=[SourceRootConfig], options={
SourceRootConfig.options_scope: options
})
source_roots = SourceRootConfig.global_instance().get_source_roots()
# Ensure that we see any manually added roots.
source_roots.add_source_root('fixed/root/jvm', ('java', 'scala'), TEST)
source_roots.all_roots()
self.assertEqual({SourceRoot('contrib/go/examples/3rdparty/go', ('go',), THIRDPARTY),
SourceRoot('contrib/go/examples/src/go/src', ('go',), SOURCE),
SourceRoot('src/java', ('java',), SOURCE),
SourceRoot('src/python', ('python',), SOURCE),
SourceRoot('src/example/java', ('java',), SOURCE),
SourceRoot('src/example/python', ('python',), SOURCE),
SourceRoot('my/project/src/java', ('java',), SOURCE),
SourceRoot('fixed/root/jvm', ('java','scala'), TEST)},
set(source_roots.all_roots()))