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bazel-lib/lib/tests/utils_test.bzl
2022-07-14 07:53:05 -07:00

99 lines
3.4 KiB
Python

"Unit tests for test.bzl"
load("@bazel_skylib//lib:unittest.bzl", "asserts", "unittest")
load("//lib/private:utils.bzl", "utils")
def _to_label_test_impl(ctx):
env = unittest.begin(ctx)
# assert label/string comparisons work as expected
asserts.true(env, "//some/label" != Label("//some/label"))
asserts.true(env, "//some/label" != Label("//some/other/label"))
asserts.true(env, Label("//some/label") == Label("//some/label"))
asserts.true(env, "//some/label" != Label("//some/label"))
asserts.true(env, "//some/label" != Label("//some/other/label"))
# assert that to_label can convert from string to label
asserts.true(env, utils.to_label("//hello/world") == Label("//hello/world:world"))
asserts.true(env, utils.to_label("//hello/world:world") == Label("//hello/world:world"))
# assert that to_label will handle a Label as an argument
asserts.true(env, utils.to_label(Label("//hello/world")) == Label("//hello/world:world"))
asserts.true(env, utils.to_label(Label("//hello/world:world")) == Label("//hello/world:world"))
# relative labels
for (actual, expected) in ctx.attr.relative_asserts.items():
asserts.true(env, actual.label == Label(expected))
return unittest.end(env)
def _is_external_label_test_impl(ctx):
env = unittest.begin(ctx)
# assert that labels and strings that are constructed within this workspace return false
asserts.false(env, utils.is_external_label("//some/label"))
asserts.false(env, utils.is_external_label(Label("//some/label")))
asserts.false(env, utils.is_external_label(Label("@aspect_bazel_lib//some/label")))
asserts.false(env, ctx.attr.internal_with_workspace_as_string)
# assert that labels and string that give a workspace return true
asserts.true(env, utils.is_external_label(Label("@foo//some/label")))
asserts.true(env, ctx.attr.external_as_string)
return unittest.end(env)
def _propagate_well_known_tags_test_impl(ctx):
env = unittest.begin(ctx)
asserts.equals(env, ["manual", "cpu:12"], utils.propagate_well_known_tags(["foo", "manual", "bar", "cpu:12"]))
return unittest.end(env)
to_label_test = unittest.make(
_to_label_test_impl,
attrs = {
"relative_asserts": attr.label_keyed_string_dict(
allow_files = True,
mandatory = True,
),
},
)
is_external_label_test = unittest.make(
_is_external_label_test_impl,
attrs = {
"external_as_string": attr.bool(
mandatory = True,
),
"internal_with_workspace_as_string": attr.bool(
mandatory = True,
),
},
)
propagate_well_known_tags_test = unittest.make(
_propagate_well_known_tags_test_impl,
)
# buildifier: disable=function-docstring
def utils_test_suite():
to_label_test(name = "to_label_tests", relative_asserts = {
utils.to_label(":utils_test.bzl"): "//lib/tests:utils_test.bzl",
})
is_external_label_test(
name = "is_external_label_tests",
external_as_string = utils.is_external_label("@foo//some/label"),
internal_with_workspace_as_string = utils.is_external_label("@aspect_bazel_lib//some/label"),
)
propagate_well_known_tags_test(
name = "propagate_well_known_tags_tests",
)
# Tests that must run in the loading phase
if utils.file_exists("does-not-exist"):
fail("does-not-exist does not exist")
if not utils.file_exists("utils_test.bzl"):
fail("utils_test.bzl does exist")