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bazel-skylib/tests/collections_tests.bzl
László Csomor daf5137022
unittest.bzl: supports Windows (#84)
In this commit:

- change unittest.bzl to declare a named output
  file instead of relying on the deprecated [1]
  default output name (ctx.outputs.executable).

- define a new toolchain_type and toolchain rules
  for cmd.exe and for Bash (basically Windows and
  non-Windows)

- register the new toolchains in workspace.bzl

- let unittest.make-created test rules require the
  new toolchain_type

- write the test output script as a Windows batch
  script or as a Shell script, depending on the
  selected toolchain

This PR enables the Bazel team to break the Bash
dependency (for test execution) on Windows, and
can run Starlark unittests with the new,
Windows-native test wrapper (still under
development).

See https://github.com/bazelbuild/bazel/issues/5508
2018-12-04 16:14:08 +01:00

114 lines
3.1 KiB
Python

# Copyright 2017 The Bazel Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Unit tests for collections.bzl."""
load("//lib:collections.bzl", "collections")
load("//lib:unittest.bzl", "asserts", "unittest")
def _after_each_test(ctx):
"""Unit tests for collections.after_each."""
env = unittest.begin(ctx)
asserts.equals(env, [], collections.after_each("1", []))
asserts.equals(env, ["a", "1"], collections.after_each("1", ["a"]))
asserts.equals(
env,
["a", "1", "b", "1"],
collections.after_each("1", ["a", "b"]),
)
# We don't care what type the separator is, we just put it there; so None
# should be just as valid as anything else.
asserts.equals(
env,
["a", None, "b", None],
collections.after_each(None, ["a", "b"]),
)
return unittest.end(env)
after_each_test = unittest.make(_after_each_test)
def _before_each_test(ctx):
"""Unit tests for collections.before_each."""
env = unittest.begin(ctx)
asserts.equals(env, [], collections.before_each("1", []))
asserts.equals(env, ["1", "a"], collections.before_each("1", ["a"]))
asserts.equals(
env,
["1", "a", "1", "b"],
collections.before_each("1", ["a", "b"]),
)
# We don't care what type the separator is, we just put it there; so None
# should be just as valid as anything else.
asserts.equals(
env,
[None, "a", None, "b"],
collections.before_each(None, ["a", "b"]),
)
return unittest.end(env)
before_each_test = unittest.make(_before_each_test)
def _uniq_test(ctx):
env = unittest.begin(ctx)
asserts.equals(env, collections.uniq([0, 1, 2, 3]), [0, 1, 2, 3])
asserts.equals(env, collections.uniq([]), [])
asserts.equals(env, collections.uniq([1, 1, 1, 1, 1]), [1])
asserts.equals(
env,
collections.uniq([
True,
5,
"foo",
5,
False,
struct(a = 1),
True,
struct(b = 2),
"bar",
(1,),
"foo",
struct(a = 1),
(1,),
]),
[
True,
5,
"foo",
False,
struct(a = 1),
struct(b = 2),
"bar",
(1,),
],
)
return unittest.end(env)
uniq_test = unittest.make(_uniq_test)
def collections_test_suite():
"""Creates the test targets and test suite for collections.bzl tests."""
unittest.suite(
"collections_tests",
after_each_test,
before_each_test,
uniq_test,
)