bazel-skylib/tests/unittest_test.sh

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#!/bin/bash
# Copyright 2019 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.
#
# End to end tests for unittest.bzl.
#
# Specifically, end to end tests of unittest.bzl cover verification that
# analysis-phase tests written with unittest.bzl appropriately
# cause test failures in cases where violated assertions are made.
# --- begin runfiles.bash initialization ---
set -euo pipefail
if [[ ! -d "${RUNFILES_DIR:-/dev/null}" && ! -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then
if [[ -f "$0.runfiles_manifest" ]]; then
export RUNFILES_MANIFEST_FILE="$0.runfiles_manifest"
elif [[ -f "$0.runfiles/MANIFEST" ]]; then
export RUNFILES_MANIFEST_FILE="$0.runfiles/MANIFEST"
elif [[ -f "$0.runfiles/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then
export RUNFILES_DIR="$0.runfiles"
fi
fi
if [[ -f "${RUNFILES_DIR:-/dev/null}/bazel_tools/tools/bash/runfiles/runfiles.bash" ]]; then
source "${RUNFILES_DIR}/bazel_tools/tools/bash/runfiles/runfiles.bash"
elif [[ -f "${RUNFILES_MANIFEST_FILE:-/dev/null}" ]]; then
source "$(grep -m1 "^bazel_tools/tools/bash/runfiles/runfiles.bash " \
"$RUNFILES_MANIFEST_FILE" | cut -d ' ' -f 2-)"
else
echo >&2 "ERROR: cannot find @bazel_tools//tools/bash/runfiles:runfiles.bash"
exit 1
fi
# --- end runfiles.bash initialization ---
source "$(rlocation bazel_skylib/tests/unittest.bash)" \
|| { echo "Could not source bazel_skylib/tests/unittest.bash" >&2; exit 1; }
function create_pkg() {
local -r pkg="$1"
mkdir -p "$pkg"
cd "$pkg"
cat > WORKSPACE <<EOF
workspace(name = 'bazel_skylib')
load("//lib:unittest.bzl", "register_unittest_toolchains")
register_unittest_toolchains()
EOF
# Copy relevant skylib sources into the current workspace.
mkdir -p tests
touch tests/BUILD
cat > tests/BUILD <<EOF
exports_files(["*.bzl"])
EOF
ln -sf "$(rlocation bazel_skylib/tests/unittest_tests.bzl)" tests/unittest_tests.bzl
mkdir -p lib
touch lib/BUILD
cat > lib/BUILD <<EOF
exports_files(["*.bzl"])
EOF
ln -sf "$(rlocation bazel_skylib/lib/dicts.bzl)" lib/dicts.bzl
ln -sf "$(rlocation bazel_skylib/lib/new_sets.bzl)" lib/new_sets.bzl
ln -sf "$(rlocation bazel_skylib/lib/sets.bzl)" lib/sets.bzl
ln -sf "$(rlocation bazel_skylib/lib/types.bzl)" lib/types.bzl
ln -sf "$(rlocation bazel_skylib/lib/unittest.bzl)" lib/unittest.bzl
mkdir -p toolchains/unittest
ln -sf "$(rlocation bazel_skylib/toolchains/unittest/BUILD)" toolchains/unittest/BUILD
# Create test files.
mkdir -p testdir
cat > testdir/BUILD <<EOF
load("//tests:unittest_tests.bzl",
"basic_passing_test",
"basic_failing_test",
"fail_unexpected_passing_test",
"fail_unexpected_passing_fake_rule")
basic_passing_test(name = "basic_passing_test")
basic_failing_test(name = "basic_failing_test")
fail_unexpected_passing_test(
name = "fail_unexpected_passing_test",
target_under_test = ":fail_unexpected_passing_fake_target",
)
fail_unexpected_passing_fake_rule(
name = "fail_unexpected_passing_fake_target",
tags = ["manual"])
EOF
}
function test_basic_passing_test() {
local -r pkg="${FUNCNAME[0]}"
create_pkg "$pkg"
bazel test testdir:basic_passing_test >"$TEST_log" 2>&1 || fail "Expected test to pass"
expect_log "PASSED"
}
function test_basic_failing_test() {
local -r pkg="${FUNCNAME[0]}"
create_pkg "$pkg"
bazel test testdir:basic_failing_test --test_output=all --verbose_failures \
>"$TEST_log" 2>&1 && fail "Expected test to fail" || true
expect_log "In test _basic_failing_test from //tests:unittest_tests.bzl: Expected \"1\", but got \"2\""
}
function test_fail_unexpected_passing_test() {
local -r pkg="${FUNCNAME[0]}"
create_pkg "$pkg"
bazel test testdir:fail_unexpected_passing_test --test_output=all --verbose_failures \
>"$TEST_log" 2>&1 && fail "Expected test to fail" || true
expect_log "Expected failure of target_under_test, but found success"
}
cd "$TEST_TMPDIR"
run_suite "unittest test suite"