lib/unittest/BUILD.bazel

# Copyright 2024 The Pigweed Authors
#
# 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
#
#     https://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.

load("@pigweed//pw_build:compatibility.bzl", "incompatible_with_mcu")
load("@rules_rust//rust:defs.bzl", "rust_library", "rust_proc_macro", "rust_test")

package(default_visibility = ["//visibility:public"])

rust_proc_macro(
    name = "unittest_proc_macro",
    srcs = [
        "unittest_proc_macro.rs",
    ],
    visibility = ["//visibility:public"],
    deps = [
        "@rust_crates//:proc-macro2",
        "@rust_crates//:quote",
        "@rust_crates//:syn",
    ],
)

rust_library(
    name = "unittest",
    srcs = ["unittest.rs"],
    proc_macro_deps = [
        ":unittest_proc_macro",
    ],
    visibility = ["//visibility:public"],
    deps = [
        ":unittest_core",
        ":unittest_runner",
    ],
)

rust_library(
    name = "unittest_core",
    srcs = ["unittest_core.rs"],
    target_compatible_with = select({
        # The intrusive collections crate uses atomics which are not available
        # on the M0.
        "@pigweed//pw_build/constraints/chipset:nrf52833": ["@platforms//:incompatible"],
        "//conditions:default": [],
    }),
    visibility = ["//visibility:public"],
    deps = [
        "@pigweed//pw_bytes/rust:pw_bytes",
        "@rust_crates//:intrusive-collections",
    ],
)

rust_library(
    name = "unittest_runner_host",
    srcs = ["unittest_runner_host.rs"],
    crate_name = "unittest_runner",
    target_compatible_with = incompatible_with_mcu(),
    visibility = ["//visibility:public"],
    deps = [
        ":unittest_core",
        "@pigweed//pw_log/rust:pw_log",
    ],
)

rust_library(
    name = "unittest_runner_cortex_m",
    srcs = ["unittest_runner_cortex_m.rs"],
    crate_name = "unittest_runner",
    target_compatible_with = select({
        "@pigweed//pw_build/constraints/arm:cortex-m0": [],
        "@pigweed//pw_build/constraints/arm:cortex-m3": [],
        "@pigweed//pw_build/constraints/arm:cortex-m33": [],
        "//conditions:default": ["@platforms//:incompatible"],
    }),
    deps = [
        ":unittest_core",
        "//target",
        "@pigweed//pw_log/rust:pw_log",
        "@rust_crates//:cortex-m-rt",
        "@rust_crates//:cortex-m-semihosting",
        "@rust_crates//:panic-halt",
    ],
)

rust_library(
    name = "unittest_test",
    srcs = ["unittest_test.rs"],
    visibility = ["//visibility:public"],
)

rust_test(
    name = "unittest_test_test",
    srcs = ["tests/unittest_test_test.rs"],
    use_libtest_harness = False,
    visibility = ["//visibility:public"],
    deps = [
        ":unittest",
        ":unittest_test",
        "//target:linker_script",
        "@pigweed//pw_log/rust:pw_log",
        "@rust_crates//:cortex-m-rt",
        "@rust_crates//:cortex-m-semihosting",
        "@rust_crates//:panic-halt",
    ],
)

label_flag(
    name = "unittest_runner",
    build_setting_default = ":unittest_runner_host",
)