292 lines
11 KiB
Python
292 lines
11 KiB
Python
# Copyright 2017 The Bazel Authors. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Unit tests for paths.bzl."""
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load("//lib:paths.bzl", "paths")
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load("//lib:unittest.bzl", "asserts", "unittest")
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def _basename_test(ctx):
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"""Unit tests for paths.basename."""
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env = unittest.begin(ctx)
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# Verify some degenerate cases.
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asserts.equals(env, "", paths.basename(""))
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asserts.equals(env, "", paths.basename("/"))
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asserts.equals(env, "bar", paths.basename("foo///bar"))
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# Verify some realistic cases.
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asserts.equals(env, "foo", paths.basename("foo"))
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asserts.equals(env, "foo", paths.basename("/foo"))
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asserts.equals(env, "foo", paths.basename("bar/foo"))
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asserts.equals(env, "foo", paths.basename("/bar/foo"))
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# Verify that we correctly duplicate Python's os.path.basename behavior,
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# where a trailing slash means the basename is empty.
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asserts.equals(env, "", paths.basename("foo/"))
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asserts.equals(env, "", paths.basename("/foo/"))
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return unittest.end(env)
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basename_test = unittest.make(_basename_test)
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def _dirname_test(ctx):
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"""Unit tests for paths.dirname."""
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env = unittest.begin(ctx)
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# Verify some degenerate cases.
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asserts.equals(env, "", paths.dirname(""))
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asserts.equals(env, "/", paths.dirname("/"))
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asserts.equals(env, "foo", paths.dirname("foo///bar"))
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# Verify some realistic cases.
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asserts.equals(env, "", paths.dirname("foo"))
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asserts.equals(env, "/", paths.dirname("/foo"))
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asserts.equals(env, "bar", paths.dirname("bar/foo"))
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asserts.equals(env, "/bar", paths.dirname("/bar/foo"))
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# Verify that we correctly duplicate Python's os.path.dirname behavior,
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# where a trailing slash means the dirname is the same as the original
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# path (without the trailing slash).
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asserts.equals(env, "foo", paths.dirname("foo/"))
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asserts.equals(env, "/foo", paths.dirname("/foo/"))
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return unittest.end(env)
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dirname_test = unittest.make(_dirname_test)
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def _is_absolute_test(ctx):
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"""Unit tests for paths.is_absolute."""
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env = unittest.begin(ctx)
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# Try a degenerate case.
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asserts.false(env, paths.is_absolute(""))
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# Try some relative paths.
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asserts.false(env, paths.is_absolute("foo"))
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asserts.false(env, paths.is_absolute("foo/"))
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asserts.false(env, paths.is_absolute("foo/bar"))
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# Try some Linux absolute paths.
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asserts.true(env, paths.is_absolute("/"))
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asserts.true(env, paths.is_absolute("/foo"))
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asserts.true(env, paths.is_absolute("/foo/"))
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asserts.true(env, paths.is_absolute("/foo/bar"))
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# Try some Windows absolute paths.
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asserts.true(env, paths.is_absolute("D:\\"))
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asserts.true(env, paths.is_absolute("C:\\"))
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asserts.true(env, paths.is_absolute("C:\\foo"))
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asserts.true(env, paths.is_absolute("C:\\foo\\bar"))
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return unittest.end(env)
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is_absolute_test = unittest.make(_is_absolute_test)
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def _join_test(ctx):
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"""Unit tests for paths.join."""
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env = unittest.begin(ctx)
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# Try a degenerate case.
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asserts.equals(env, "", paths.join(""))
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# Try some basic paths.
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asserts.equals(env, "foo", paths.join("foo"))
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asserts.equals(env, "foo/bar", paths.join("foo", "bar"))
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asserts.equals(env, "foo/bar/baz", paths.join("foo", "bar", "baz"))
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# Make sure an initially absolute path stays absolute.
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asserts.equals(env, "/foo", paths.join("/foo"))
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asserts.equals(env, "/foo/bar", paths.join("/foo", "bar"))
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# Make sure an absolute path later in the list resets the result.
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asserts.equals(env, "/baz", paths.join("foo", "bar", "/baz"))
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asserts.equals(env, "/baz", paths.join("foo", "/bar", "/baz"))
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asserts.equals(env, "/bar/baz", paths.join("foo", "/bar", "baz"))
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asserts.equals(env, "/bar", paths.join("/foo", "/bar"))
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# Make sure a leading empty segment doesn't make it absolute.
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asserts.equals(env, "foo", paths.join("", "foo"))
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# Try some trailing slash scenarios.
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asserts.equals(env, "foo/", paths.join("foo", ""))
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asserts.equals(env, "foo/", paths.join("foo/"))
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asserts.equals(env, "foo/", paths.join("foo/", ""))
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asserts.equals(env, "foo//", paths.join("foo//", ""))
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asserts.equals(env, "foo//", paths.join("foo//"))
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asserts.equals(env, "foo/bar/baz/", paths.join("foo/", "bar/", "baz", ""))
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asserts.equals(env, "foo/bar/baz/", paths.join("foo/", "bar/", "baz/"))
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asserts.equals(env, "foo/bar/baz/", paths.join("foo/", "bar/", "baz/", ""))
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# Make sure that adjacent empty segments don't add extra path separators.
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asserts.equals(env, "foo/", paths.join("foo", "", ""))
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asserts.equals(env, "foo", paths.join("", "", "foo"))
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asserts.equals(env, "foo/bar", paths.join("foo", "", "", "bar"))
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return unittest.end(env)
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join_test = unittest.make(_join_test)
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def _normalize_test(ctx):
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"""Unit tests for paths.normalize."""
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env = unittest.begin(ctx)
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# Try the most basic case.
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asserts.equals(env, ".", paths.normalize(""))
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# Try some basic adjacent-slash removal.
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asserts.equals(env, "foo/bar", paths.normalize("foo//bar"))
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asserts.equals(env, "foo/bar", paths.normalize("foo////bar"))
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# Try some "." removal.
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asserts.equals(env, "foo/bar", paths.normalize("foo/./bar"))
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asserts.equals(env, "foo/bar", paths.normalize("./foo/bar"))
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asserts.equals(env, "foo/bar", paths.normalize("foo/bar/."))
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asserts.equals(env, "/", paths.normalize("/."))
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# Try some ".." removal.
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asserts.equals(env, "bar", paths.normalize("foo/../bar"))
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asserts.equals(env, "foo", paths.normalize("foo/bar/.."))
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asserts.equals(env, ".", paths.normalize("foo/.."))
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asserts.equals(env, ".", paths.normalize("foo/bar/../.."))
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asserts.equals(env, "..", paths.normalize("foo/../.."))
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asserts.equals(env, "/", paths.normalize("/foo/../.."))
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asserts.equals(env, "../../c", paths.normalize("a/b/../../../../c/d/.."))
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# Make sure one or two initial slashes are preserved, but three or more are
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# collapsed to a single slash.
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asserts.equals(env, "/foo", paths.normalize("/foo"))
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asserts.equals(env, "//foo", paths.normalize("//foo"))
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asserts.equals(env, "/foo", paths.normalize("///foo"))
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# Trailing slashes should be removed unless the entire path is a trailing
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# slash.
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asserts.equals(env, "/", paths.normalize("/"))
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asserts.equals(env, "foo", paths.normalize("foo/"))
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asserts.equals(env, "foo/bar", paths.normalize("foo/bar/"))
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return unittest.end(env)
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normalize_test = unittest.make(_normalize_test)
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def _relativize_test(ctx):
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"""Unit tests for paths.relativize."""
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env = unittest.begin(ctx)
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# Make sure that relative-to-current-directory works in all forms.
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asserts.equals(env, "foo", paths.relativize("foo", ""))
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asserts.equals(env, "foo", paths.relativize("foo", "."))
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# Try some regular cases.
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asserts.equals(env, "bar", paths.relativize("foo/bar", "foo"))
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asserts.equals(env, "baz", paths.relativize("foo/bar/baz", "foo/bar"))
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asserts.equals(env, "bar/baz", paths.relativize("foo/bar/baz", "foo"))
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# Try a case where a parent directory is normalized away.
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asserts.equals(env, "baz", paths.relativize("foo/bar/../baz", "foo"))
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# Relative paths work, as long as they share a common start.
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asserts.equals(env, "file", paths.relativize("../foo/bar/baz/file", "../foo/bar/baz"))
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asserts.equals(env, "baz/file", paths.relativize("../foo/bar/baz/file", "../foo/bar"))
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# TODO(allevato): Test failure cases, once that is possible.
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return unittest.end(env)
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relativize_test = unittest.make(_relativize_test)
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def _replace_extension_test(ctx):
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"""Unit tests for paths.replace_extension."""
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env = unittest.begin(ctx)
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# Try some degenerate cases.
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asserts.equals(env, ".foo", paths.replace_extension("", ".foo"))
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asserts.equals(env, "/.foo", paths.replace_extension("/", ".foo"))
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asserts.equals(env, "foo.bar", paths.replace_extension("foo", ".bar"))
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# Try a directory with an extension and basename that doesn't have one.
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asserts.equals(
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env,
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"foo.bar/baz.quux",
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paths.replace_extension("foo.bar/baz", ".quux"),
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)
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# Now try some things with legit extensions.
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asserts.equals(env, "a.z", paths.replace_extension("a.b", ".z"))
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asserts.equals(env, "a.b.z", paths.replace_extension("a.b.c", ".z"))
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asserts.equals(env, "a/b.z", paths.replace_extension("a/b.c", ".z"))
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asserts.equals(env, "a.b/c.z", paths.replace_extension("a.b/c.d", ".z"))
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asserts.equals(env, ".a/b.z", paths.replace_extension(".a/b.c", ".z"))
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asserts.equals(env, ".a.z", paths.replace_extension(".a.b", ".z"))
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# Verify that we don't insert a period on the extension if none is provided.
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asserts.equals(env, "foobaz", paths.replace_extension("foo.bar", "baz"))
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return unittest.end(env)
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replace_extension_test = unittest.make(_replace_extension_test)
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def _split_extension_test(ctx):
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"""Unit tests for paths.split_extension."""
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env = unittest.begin(ctx)
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# Try some degenerate cases.
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asserts.equals(env, ("", ""), paths.split_extension(""))
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asserts.equals(env, ("/", ""), paths.split_extension("/"))
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asserts.equals(env, ("foo", ""), paths.split_extension("foo"))
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# Try some paths whose basenames start with ".".
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asserts.equals(env, (".", ""), paths.split_extension("."))
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asserts.equals(env, (".bashrc", ""), paths.split_extension(".bashrc"))
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asserts.equals(env, ("foo/.bashrc", ""), paths.split_extension("foo/.bashrc"))
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asserts.equals(
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env,
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(".foo/.bashrc", ""),
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paths.split_extension(".foo/.bashrc"),
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)
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# Try some directories with extensions with basenames that don't have one.
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asserts.equals(env, ("foo.bar/baz", ""), paths.split_extension("foo.bar/baz"))
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asserts.equals(
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env,
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("foo.bar/.bashrc", ""),
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paths.split_extension("foo.bar/.bashrc"),
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)
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# Now try some things that will actually get split.
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asserts.equals(env, ("a", ".b"), paths.split_extension("a.b"))
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asserts.equals(env, ("a.b", ".c"), paths.split_extension("a.b.c"))
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asserts.equals(env, ("a/b", ".c"), paths.split_extension("a/b.c"))
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asserts.equals(env, ("a.b/c", ".d"), paths.split_extension("a.b/c.d"))
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asserts.equals(env, (".a/b", ".c"), paths.split_extension(".a/b.c"))
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asserts.equals(env, (".a", ".b"), paths.split_extension(".a.b"))
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return unittest.end(env)
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split_extension_test = unittest.make(_split_extension_test)
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def paths_test_suite():
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"""Creates the test targets and test suite for paths.bzl tests."""
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unittest.suite(
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"paths_tests",
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basename_test,
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dirname_test,
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is_absolute_test,
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join_test,
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normalize_test,
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relativize_test,
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replace_extension_test,
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split_extension_test,
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)
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