Split tensorflow.python.tpu module doctests into different target.

These TPU tests do not yet run in OSS.

PiperOrigin-RevId: 310959419
Change-Id: I2a1662e52f25da9c4c58c018c83729dc6da9008d

tensorflow/python/tpu/tpu_embedding.py

@@ -828,7 +828,7 @@ class TPUEmbedding(object):
   ...     end_learning_rate=0.0)
   >>> wordpiece_table_config = TableConfig(
   ...   vocabulary_size=119547,
-  ...   dimension=768,
+  ...   dimension=256,
   ...   learning_rate_fn=learning_rate_fn)
   >>> wordpiece_feature_config = FeatureConfig(
   ...   table_id='bert/embeddings/word_embeddings',
@@ -846,11 +846,11 @@ class TPUEmbedding(object):
   ...  batch_size=128,
   ...  mode=TRAINING,
   ...  optimization_parameters=optimization_parameters,
-  ...  device_config=DeviceConfig(
+  ...  master='')
-  ...    num_cores=64, num_hosts=4, job_name='tpu_worker'))
   >>> with tf.Graph().as_default():
   ...   init_tpu_op = tf.compat.v1.tpu.initialize_system(
-  ...     embedding_config=tpu_embedding.config_proto, job='tpu_worker')
+  ...     embedding_config=tpu_embedding.config_proto)
+  ...   tf.compat.v1.Session().run(init_tpu_op)
   """
 
   # TODO(shizhiw): Consider adding a field to FeatureConfig that indicates that

tensorflow/tools/docs/BUILD

@@ -2,6 +2,7 @@
 #   Doc generator
 
 load("//tensorflow:tensorflow.bzl", "py_test")
+load("//tensorflow/python/tpu:tpu.bzl", "tpu_py_test")
 
 package(
     default_visibility = ["//tensorflow:__subpackages__"],
@@ -22,6 +23,7 @@ py_library(
 py_test(
     name = "tf_doctest",
     srcs = ["tf_doctest.py"],
+    args = ["--module_prefix_skip=tpu."],
     python_version = "PY3",
     tags = [
         "no_oss_py2",
@@ -40,6 +42,28 @@ py_test(
     ],
 )
 
+tpu_py_test(
+    name = "tf_doctest_tpu",
+    srcs = ["tf_doctest.py"],
+    args = ["--module=tpu."],
+    disable_experimental = True,
+    disable_v3 = True,
+    main = "tf_doctest.py",
+    python_version = "PY3",
+    tags = [
+        "no_oss",
+        "noasan",
+        "nomsan",
+        "notsan",
+    ],
+    deps = [
+        ":tf_doctest_lib",
+        "//tensorflow:tensorflow_py",
+        "//tensorflow/python/keras/preprocessing",
+        "//third_party/py/numpy",
+    ],
+)
+
 py_test(
     name = "tf_doctest_test",
     srcs = ["tf_doctest_test.py"],

tensorflow/tools/docs/tf_doctest.py

@@ -43,6 +43,8 @@ tf.keras.preprocessing = preprocessing
 FLAGS = flags.FLAGS
 
 flags.DEFINE_string('module', None, 'A specific module to run doctest on.')
+flags.DEFINE_list('module_prefix_skip', [],
+                  'A list of modules to ignore when resolving modules.')
 flags.DEFINE_boolean('list', None,
                      'List all the modules in the core package imported.')
 flags.DEFINE_string('file', None, 'A specific file to run doctest on.')
@@ -50,6 +52,7 @@ flags.DEFINE_string('file', None, 'A specific file to run doctest on.')
 flags.mark_flags_as_mutual_exclusive(['module', 'file'])
 flags.mark_flags_as_mutual_exclusive(['list', 'file'])
 
+# Both --module and --module_prefix_skip are relative to PACKAGE.
 PACKAGE = 'tensorflow.python.'
 
 
@@ -140,6 +143,9 @@ def load_tests(unused_loader, tests, unused_ignore):
     tf_modules = get_module_and_inject_docstring(FLAGS.file)
 
   for module in tf_modules:
+    if any(module.__name__.startswith(PACKAGE + prefix)
+           for prefix in FLAGS.module_prefix_skip):
+      continue
     testcase = TfTestCase()
     tests.addTests(
         doctest.DocTestSuite(