test-wrapper: add empty impl + Bazel flag

This commit adds:

- the skeleton implementation of the Windows
  native test wrapper

- a depenency on the native test wrapper from test
  rules, through the new $test_wrapper rule
  attribute

- the --windows_native_test_wrapper Bazel flag,
  which is currently a no-op

See https://github.com/bazelbuild/bazel/issues/5508

Change-Id: I8df95c8ce8bab53c51c257698ec95416065a836e

Closes #5854.

Change-Id: I2ffc78bceec5dd867af775b5878f105fa87c3dba
PiperOrigin-RevId: 208650699

1 files changed, 13 insertions, 1 deletions

diff --git a/tools/test/BUILD b/tools/test/BUILD
index 18dc71b493..4d5a3ab212 100644
--- a/tools/test/BUILD
+++ b/tools/test/BUILD
@@ -33,6 +33,15 @@ filegroup(
     srcs = ["@bazel_tools//tools/test/LcovMerger/java/com/google/devtools/lcovmerger:Main"],
 )
 
+cc_binary(
+    name = "test_wrapper_bin",
+    srcs = select({
+        "@bazel_tools//src/conditions:windows": ["windows/test_wrapper.cc"],
+        "//conditions:default": ["empty_test_wrapper.cc"],
+    }),
+    visibility = ["//visibility:private"],
+)
+
 filegroup(
     name = "srcs",
     srcs = glob(["**"]),
@@ -45,7 +54,10 @@ filegroup(
         "test-setup.sh",
         "generate-xml.sh",
         "collect_coverage.sh",
-    ] + glob(["LcovMerger/**"]),
+    ] + glob(["LcovMerger/**"]) + select({
+        "@bazel_tools//src/conditions:windows": ["test_wrapper_bin"],
+        "//conditions:default": [],
+    }),
     visibility = ["//tools:__pkg__"],
 )