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1# Copyright 2021 The Chromium Authors
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4
5import("//build/config/rust.gni")
6import("//build/rust/rust_unit_tests_group.gni")
7
8# Build some minimal binaries to exercise the Rust toolchain
9# only if that toolchain is enabled in gn args.
10group("tests") {
11  testonly = true
12
13  deps = [ ":deps" ]
14  if (can_build_rust_unit_tests) {
15    deps += [ ":build_rust_tests" ]
16  }
17}
18
19group("deps") {
20  testonly = true
21  deps = []
22
23  # All the rest require Rust.
24  if (toolchain_has_rust) {
25    deps += [
26      "//build/rust/tests/bindgen_cpp_test_with_cpp_linkage",
27      "//build/rust/tests/bindgen_static_fns_test",
28      "//build/rust/tests/bindgen_test",
29      "//build/rust/tests/test_aliased_deps",
30      "//build/rust/tests/test_aliased_deps:test_aliased_deps_exe",
31      "//build/rust/tests/test_bin_crate",
32      "//build/rust/tests/test_rlib_crate:target1",
33      "//build/rust/tests/test_rlib_crate:target2",
34      "//build/rust/tests/test_rlib_crate:test_rlib_crate_associated_bin",
35      "//build/rust/tests/test_rlib_crate_testonly:testonly_target",
36      "//build/rust/tests/test_rust_exe_2",
37      "//build/rust/tests/test_rust_metadata:test_rust_metadata_cc_exe",
38      "//build/rust/tests/test_rust_metadata:test_rust_metadata_exe",
39      "//build/rust/tests/test_rust_multiple_dep_versions_exe",
40      "//build/rust/tests/test_simple_rust_exe",
41
42      # TODO(crbug.com/40226863): Enable the additional target below
43      # once `rs_bindings_from_cc` is distributed via `gclient sync`.  In the
44      # meantime see the instructions in
45      # `//build/rust/run_rs_bindings_from_cc.py`.
46      #"test_rs_bindings_from_cc:test_rs_bindings_from_cc",
47    ]
48
49    if (target_cpu == "x86") {
50      # Some `target_os`s do not support 32-bit platforms anymore.  The
51      # selection below is _loosely_ based on `is_valid_x86_target` from
52      # the top-level `//BUILD.gn`.
53      if (is_win || is_android) {
54        deps += [ "//build/rust/tests/test_build_rs_target_arch_x86" ]
55      }
56    }
57
58    if (!(is_apple && is_official_build)) {
59      # TODO: crbug.com/372055517 - Apple lld has an ordering dependency bug
60      # when LTO is enabled, and this particular build target runs into that.
61      deps += [ "//build/rust/tests/bindgen_cpp_test" ]
62    }
63
64    if (enable_chromium_prelude) {
65      deps += [ "//build/rust/chromium_prelude:import_test" ]
66    }
67    if (enable_rust_cxx) {
68      deps += [
69        "//build/rust/tests/test_cpp_including_rust",
70        "//build/rust/tests/test_rust_calling_cpp",
71        "//build/rust/tests/test_rust_exe",
72        "//build/rust/tests/test_rust_static_library",
73      ]
74    }
75    if (build_with_chromium) {
76      # This tests integration with a 3p library that downstream projects
77      # don't need to have.
78      deps += [ "//build/rust/tests/test_serde_json_lenient" ]
79    }
80
81    if (can_build_rust_unit_tests) {
82      deps += [
83        "//build/rust/tests/bindgen_static_fns_test:bindgen_static_fns_test_lib_unittests",
84        "//build/rust/tests/bindgen_test:bindgen_test_lib_unittests",
85        "//build/rust/tests/test_aliased_deps:test_aliased_deps_unittests",
86        "//build/rust/tests/test_rlib_crate:target1_test_rlib_crate_v0_2_unittests",
87        "//build/rust/tests/test_rlib_crate:target2_test_rlib_crate_v0_2_unittests",
88        "//build/rust/tests/test_rust_metadata:test_rust_metadata_unittests",
89        "//build/rust/tests/test_rust_multiple_dep_versions_exe/v1:test_lib_v1_unittests",
90        "//build/rust/tests/test_rust_multiple_dep_versions_exe/v2:test_lib_v2_unittests",
91        "//build/rust/tests/test_rust_static_library_non_standard_arrangement:foo_tests",
92
93        # TODO(crbug.com/40226863): Enable the additional target below
94        # once `rs_bindings_from_cc` is distributed via `gclient sync`.  In the
95        # meantime see the instructions in
96        # `//build/rust/run_rs_bindings_from_cc.py`.
97        #"test_rs_bindings_from_cc:test_rs_bindings_from_cc_unittests",
98      ]
99
100      if (enable_rust_cxx) {
101        deps += [
102          "//build/rust/tests/test_cpp_including_rust:test_cpp_including_rust_unittests",
103          "//build/rust/tests/test_rust_exe:test_rust_exe_unittests",
104          "//build/rust/tests/test_rust_static_library:test_rust_static_library_unittests",
105          "//build/rust/tests/test_rust_unittests",
106        ]
107      }
108    }
109
110    # Dylibs should only be built in component builds. We turn on flags which
111    # are incompatible with shared library compilation in non-component builds
112    # (such as code coverage https://crbug.com/1457533).
113    if (is_component_build && enable_rust_cxx) {
114      deps += [ "//build/rust/tests/test_rust_shared_library" ]
115      if (can_build_rust_unit_tests) {
116        deps += [ "//build/rust/tests/test_cpp_including_rust:test_cpp_including_rust_dylib_unittests" ]
117
118        # TODO(crbug.com/40266882): The shared library unittest EXE ends up
119        # requiring the DLL to run, even though it does not use the DLL.
120        if (!is_win && !is_mac) {
121          deps += [ "//build/rust/tests/test_rust_shared_library:test_rust_shared_library_unittests" ]
122        }
123      }
124    }
125
126    if (is_win) {
127      deps += [ "//build/rust/tests/windows_sys_test" ]
128      deps += [ "//build/rust/tests/test_control_flow_guard" ]
129    }
130  }
131}
132
133if (can_build_rust_unit_tests) {
134  # Generates a script that will run all the native Rust unit tests, in order
135  # to have them all part of a single test step on infra bots.
136  rust_unit_tests_group("build_rust_tests") {
137    deps = [ ":deps" ]
138  }
139}
140