Create ExperimentalTestRunner which is just the same as BazelTestRunner, but a testbed of upcoming changes, without breaking existing test targets.

To use the alternate test runner a java test should add the tag "experimental_testrunner" and depend on "@bazel_tools//tools/jdk:ExperimentalTestRunner_deploy.jar" (instead of @bazel_tools//tools/jdk:TestRunner_deploy.jar)

--
PiperOrigin-RevId: 149536298
MOS_MIGRATED_REVID=149536298

1 files changed, 39 insertions, 1 deletions

diff --git a/src/java_tools/junitrunner/java/com/google/testing/junit/runner/BUILD b/src/java_tools/junitrunner/java/com/google/testing/junit/runner/BUILD
index 1699cb882b..c5a8006794 100644
--- a/src/java_tools/junitrunner/java/com/google/testing/junit/runner/BUILD
+++ b/src/java_tools/junitrunner/java/com/google/testing/junit/runner/BUILD
@@ -7,9 +7,41 @@ DEFAULT_VISIBILITY = [
 
 package(default_visibility = ["//src:__subpackages__"])
 
+filegroup(
+    name = "common_runner_java_files",
+    srcs = glob(
+        ["*.java"],
+        exclude =
+            [
+                "BazelTestRunner.java",
+                "ExperimentalTestRunner.java",
+            ],
+    ),
+)
+
 java_library(
     name = "test_runner",
-    srcs = glob(["*.java"]),
+    srcs = [
+        "BazelTestRunner.java",
+        ":common_runner_java_files",
+    ],
+    data = ["//tools:test_sharding_compliant"],
+    deps = [
+        "//src/java_tools/junitrunner/java/com/google/testing/junit/runner/internal",
+        "//src/java_tools/junitrunner/java/com/google/testing/junit/runner/junit4",
+        "//src/java_tools/junitrunner/java/com/google/testing/junit/runner/model",
+        "//src/java_tools/junitrunner/java/com/google/testing/junit/runner/sharding",
+        "//src/java_tools/junitrunner/java/com/google/testing/junit/runner/util",
+        "//third_party:junit4",
+    ],
+)
+
+java_library(
+    name = "experimental_test_runner",
+    srcs = [
+        "ExperimentalTestRunner.java",
+        ":common_runner_java_files",
+    ],
     data = ["//tools:test_sharding_compliant"],
     deps = [
         "//src/java_tools/junitrunner/java/com/google/testing/junit/runner/internal",
@@ -27,6 +59,12 @@ java_binary(
     runtime_deps = [":test_runner"],
 )
 
+java_binary(
+    name = "ExperimentalRunner",
+    main_class = "com.google.testing.junit.runner.ExperimentalTestRunner",
+    runtime_deps = [":experimental_test_runner"],
+)
+
 filegroup(
     name = "srcs",
     testonly = 0,  # All srcs should be not test only, overwrite package default.