Project import generated by Copybara.

GitOrigin-RevId: 6a704ded0bf489614797082e7e7cda1068477ef5

mediapipe/framework/tool/executor_util_test.cc

@@ -22,15 +22,16 @@
 namespace mediapipe {
 
 TEST(GraphTest, MinimumDefaultExecutorStackSizeExistingConfigSizeUnspecified) {
-  CalculatorGraphConfig config = ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
-    executor {
-      options {
-        [mediapipe.ThreadPoolExecutorOptions.ext] { num_threads: 2 }
-      }
-    }
-  )");
+  CalculatorGraphConfig config =
+      ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
+        executor {
+          options {
+            [mediapipe.ThreadPoolExecutorOptions.ext] { num_threads: 2 }
+          }
+        }
+      )pb");
   CalculatorGraphConfig expected_config =
-      ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         executor {
           options {
             [mediapipe.ThreadPoolExecutorOptions.ext] {
@@ -39,24 +40,25 @@ TEST(GraphTest, MinimumDefaultExecutorStackSizeExistingConfigSizeUnspecified) {
             }
           }
         }
-      )");
+      )pb");
   tool::EnsureMinimumDefaultExecutorStackSize(131072, &config);
   EXPECT_THAT(config, EqualsProto(expected_config));
 }
 
 TEST(GraphTest, MinimumDefaultExecutorStackSizeExistingConfigSizeTooSmall) {
-  CalculatorGraphConfig config = ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
-    executor {
-      options {
-        [mediapipe.ThreadPoolExecutorOptions.ext] {
-          num_threads: 2
-          stack_size: 65536
+  CalculatorGraphConfig config =
+      ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
+        executor {
+          options {
+            [mediapipe.ThreadPoolExecutorOptions.ext] {
+              num_threads: 2
+              stack_size: 65536
+            }
+          }
         }
-      }
-    }
-  )");
+      )pb");
   CalculatorGraphConfig expected_config =
-      ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         executor {
           options {
             [mediapipe.ThreadPoolExecutorOptions.ext] {
@@ -65,24 +67,14 @@ TEST(GraphTest, MinimumDefaultExecutorStackSizeExistingConfigSizeTooSmall) {
             }
           }
         }
-      )");
+      )pb");
   tool::EnsureMinimumDefaultExecutorStackSize(131072, &config);
   EXPECT_THAT(config, EqualsProto(expected_config));
 }
 
 TEST(GraphTest, MinimumDefaultExecutorStackSizeExistingConfigSizeLargeEnough) {
-  CalculatorGraphConfig config = ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
-    executor {
-      options {
-        [mediapipe.ThreadPoolExecutorOptions.ext] {
-          num_threads: 2
-          stack_size: 262144
-        }
-      }
-    }
-  )");
-  CalculatorGraphConfig expected_config =
-      ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+  CalculatorGraphConfig config =
+      ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         executor {
           options {
             [mediapipe.ThreadPoolExecutorOptions.ext] {
@@ -91,17 +83,29 @@ TEST(GraphTest, MinimumDefaultExecutorStackSizeExistingConfigSizeLargeEnough) {
             }
           }
         }
-      )");
+      )pb");
+  CalculatorGraphConfig expected_config =
+      ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
+        executor {
+          options {
+            [mediapipe.ThreadPoolExecutorOptions.ext] {
+              num_threads: 2
+              stack_size: 262144
+            }
+          }
+        }
+      )pb");
   tool::EnsureMinimumDefaultExecutorStackSize(131072, &config);
   EXPECT_THAT(config, EqualsProto(expected_config));
 }
 
 TEST(GraphTest, MinimumDefaultExecutorStackSizeNumThreads) {
-  CalculatorGraphConfig config = ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
-    num_threads: 1
-  )");
+  CalculatorGraphConfig config =
+      ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
+        num_threads: 1
+      )pb");
   CalculatorGraphConfig expected_config =
-      ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         executor {
           options {
             [mediapipe.ThreadPoolExecutorOptions.ext] {
@@ -110,7 +114,7 @@ TEST(GraphTest, MinimumDefaultExecutorStackSizeNumThreads) {
             }
           }
         }
-      )");
+      )pb");
   tool::EnsureMinimumDefaultExecutorStackSize(131072, &config);
   EXPECT_THAT(config, EqualsProto(expected_config));
 }

mediapipe/framework/tool/simulation_clock_test.cc

@@ -43,7 +43,7 @@ namespace {
 class SimulationClockTest : public ::testing::Test {
  protected:
   void SetUpInFlightGraph() {
-    graph_config_ = ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+    graph_config_ = ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
       input_stream: "input_packets_0"
       node {
         calculator: 'FlowLimiterCalculator'
@@ -84,7 +84,7 @@ class SimulationClockTest : public ::testing::Test {
         output_stream: 'output_packets_0'
         output_stream: 'finish_indicator'
       }
-    )");
+    )pb");
   }
 
   // Initialize the test clock as a SimulationClock.
@@ -246,7 +246,7 @@ TEST_F(SimulationClockTest, InFlight) {
 // and SimulationClock.  With tsan, this test reveals a race condition unless
 // the SimulationClock destructor calls ThreadFinish to waits for all threads.
 TEST_F(SimulationClockTest, DestroyClock) {
-  auto graph_config = ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+  auto graph_config = ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
     node {
       calculator: "LambdaCalculator"
       input_side_packet: 'callback_0'
@@ -258,7 +258,7 @@ TEST_F(SimulationClockTest, DestroyClock) {
       input_stream: "input_1"
       output_stream: "output_1"
     }
-  )");
+  )pb");
 
   int input_count = 0;
   ProcessFunction wait_0 = [&](const InputStreamShardSet& inputs,

mediapipe/framework/tool/sink_test.cc

@@ -75,14 +75,14 @@ TEST(CallbackFromGeneratorTest, TestAddVectorSink) {
 
 TEST(CalculatorGraph, OutputSummarySidePacketInClose) {
   CalculatorGraphConfig config =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         input_stream: "input_packets"
         node {
           calculator: "CountAndOutputSummarySidePacketInCloseCalculator"
           input_stream: "input_packets"
           output_side_packet: "num_of_packets"
         }
-      )");
+      )pb");
 
   Packet summary_packet;
   tool::AddSidePacketSink("num_of_packets", &config, &summary_packet);

mediapipe/framework/tool/subgraph_expansion_test.cc

@@ -71,7 +71,7 @@ class TestSubgraph : public Subgraph {
   absl::StatusOr<CalculatorGraphConfig> GetConfig(
       const SubgraphOptions& /*options*/) override {
     CalculatorGraphConfig config =
-        mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+        mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
           input_stream: "DATA:input_1"
           node {
             name: "regular_node"
@@ -89,7 +89,7 @@ class TestSubgraph : public Subgraph {
             packet_generator: "SomePacketGenerator"
             output_side_packet: "side"
           }
-        )");
+        )pb");
     return config;
   }
 };
@@ -100,7 +100,7 @@ class PacketFactoryTestSubgraph : public Subgraph {
   absl::StatusOr<CalculatorGraphConfig> GetConfig(
       const SubgraphOptions& /*options*/) override {
     CalculatorGraphConfig config =
-        mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+        mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
           input_stream: "DATA:input_1"
           node {
             name: "regular_node"
@@ -118,7 +118,7 @@ class PacketFactoryTestSubgraph : public Subgraph {
             packet_factory: "SomePacketFactory"
             output_side_packet: "side"
           }
-        )");
+        )pb");
     return config;
   }
 };
@@ -157,7 +157,7 @@ class NodeWithExecutorSubgraph : public Subgraph {
   absl::StatusOr<CalculatorGraphConfig> GetConfig(
       const SubgraphOptions& options) override {
     CalculatorGraphConfig config =
-        mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+        mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
           input_stream: "INPUT:foo"
           output_stream: "OUTPUT:bar"
           node {
@@ -166,7 +166,7 @@ class NodeWithExecutorSubgraph : public Subgraph {
             output_stream: "bar"
             executor: "custom_thread_pool"
           }
-        )");
+        )pb");
     return config;
   }
 };
@@ -179,7 +179,7 @@ class EnclosingSubgraph : public Subgraph {
   absl::StatusOr<CalculatorGraphConfig> GetConfig(
       const SubgraphOptions& options) override {
     CalculatorGraphConfig config =
-        mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+        mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
           input_stream: "IN:in"
           output_stream: "OUT:out"
           node {
@@ -187,7 +187,7 @@ class EnclosingSubgraph : public Subgraph {
             input_stream: "INPUT:in"
             output_stream: "OUTPUT:out"
           }
-        )");
+        )pb");
     return config;
   }
 };
@@ -195,7 +195,7 @@ REGISTER_MEDIAPIPE_GRAPH(EnclosingSubgraph);
 
 TEST(SubgraphExpansionTest, TransformStreamNames) {
   CalculatorGraphConfig config =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         node {
           calculator: "SomeSinkCalculator"
           input_stream: "input_1"
@@ -203,9 +203,9 @@ TEST(SubgraphExpansionTest, TransformStreamNames) {
           input_stream: "AUDIO:0:input_3"
           input_stream: "AUDIO:1:input_4"
         }
-      )");
+      )pb");
   CalculatorGraphConfig expected_config =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         node {
           calculator: "SomeSinkCalculator"
           input_stream: "input_1_foo"
@@ -213,7 +213,7 @@ TEST(SubgraphExpansionTest, TransformStreamNames) {
           input_stream: "AUDIO:0:input_3_foo"
           input_stream: "AUDIO:1:input_4_foo"
         }
-      )");
+      )pb");
   auto add_foo = [](absl::string_view s) { return absl::StrCat(s, "_foo"); };
   MP_EXPECT_OK(tool::TransformStreamNames(
       (*config.mutable_node())[0].mutable_input_stream(), add_foo));
@@ -222,7 +222,7 @@ TEST(SubgraphExpansionTest, TransformStreamNames) {
 
 TEST(SubgraphExpansionTest, TransformNames) {
   CalculatorGraphConfig config =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         input_stream: "input_1"
         node {
           calculator: "SomeRegularCalculator"
@@ -238,9 +238,9 @@ TEST(SubgraphExpansionTest, TransformNames) {
           input_stream: "output_1"
           output_stream: "output_2"
         }
-      )");
+      )pb");
   CalculatorGraphConfig expected_config =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         input_stream: "__sg0_input_1"
         node {
           calculator: "SomeRegularCalculator"
@@ -257,7 +257,7 @@ TEST(SubgraphExpansionTest, TransformNames) {
           input_stream: "__sg0_output_1"
           output_stream: "__sg0_output_2"
         }
-      )");
+      )pb");
   auto add_prefix = [](absl::string_view s) {
     return absl::StrCat("__sg0_", s);
   };
@@ -267,14 +267,14 @@ TEST(SubgraphExpansionTest, TransformNames) {
 
 TEST(SubgraphExpansionTest, FindCorrespondingStreams) {
   CalculatorGraphConfig config1 =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         input_stream: "input_1"
         input_stream: "VIDEO:input_2"
         input_stream: "AUDIO:0:input_3"
         input_stream: "AUDIO:1:input_4"
-      )");
+      )pb");
   CalculatorGraphConfig config2 =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         node {
           calculator: "SomeSubgraph"
           input_stream: "foo"
@@ -282,7 +282,7 @@ TEST(SubgraphExpansionTest, FindCorrespondingStreams) {
           input_stream: "AUDIO:0:baz"
           input_stream: "AUDIO:1:qux"
         }
-      )");
+      )pb");
   std::map<std::string, std::string> stream_map;
   MP_EXPECT_OK(tool::FindCorrespondingStreams(
       &stream_map, config1.input_stream(), config2.node()[0].input_stream()));
@@ -296,13 +296,13 @@ TEST(SubgraphExpansionTest, FindCorrespondingStreams) {
 TEST(SubgraphExpansionTest, FindCorrespondingStreamsNonexistentTag) {
   // The VIDEO tag does not exist in the subgraph.
   CalculatorGraphConfig config1 =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         input_stream: "input_1"
         input_stream: "AUDIO:0:input_3"
         input_stream: "AUDIO:1:input_4"
-      )");
+      )pb");
   CalculatorGraphConfig config2 =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         node {
           calculator: "SomeSubgraph"
           input_stream: "foo"
@@ -310,7 +310,7 @@ TEST(SubgraphExpansionTest, FindCorrespondingStreamsNonexistentTag) {
           input_stream: "AUDIO:0:baz"
           input_stream: "AUDIO:1:qux"
         }
-      )");
+      )pb");
   std::map<std::string, std::string> stream_map;
   auto status = tool::FindCorrespondingStreams(
       &stream_map, config1.input_stream(), config2.node()[0].input_stream());
@@ -326,13 +326,13 @@ TEST(SubgraphExpansionTest, FindCorrespondingStreamsNonexistentTag) {
 TEST(SubgraphExpansionTest, FindCorrespondingStreamsTooFewIndexes) {
   // The AUDIO tag has too few indexes in the subgraph (1 vs. 2).
   CalculatorGraphConfig config1 =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         input_stream: "input_1"
         input_stream: "VIDEO:input_2"
         input_stream: "AUDIO:0:input_3"
-      )");
+      )pb");
   CalculatorGraphConfig config2 =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         node {
           calculator: "SomeSubgraph"
           input_stream: "foo"
@@ -340,7 +340,7 @@ TEST(SubgraphExpansionTest, FindCorrespondingStreamsTooFewIndexes) {
           input_stream: "AUDIO:0:baz"
           input_stream: "AUDIO:1:qux"
         }
-      )");
+      )pb");
   std::map<std::string, std::string> stream_map;
   auto status = tool::FindCorrespondingStreams(
       &stream_map, config1.input_stream(), config2.node()[0].input_stream());
@@ -355,7 +355,7 @@ TEST(SubgraphExpansionTest, FindCorrespondingStreamsTooFewIndexes) {
 
 TEST(SubgraphExpansionTest, ConnectSubgraphStreams) {
   CalculatorGraphConfig subgraph =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         input_stream: "A:input_1"
         input_stream: "B:input_2"
         output_stream: "O:output_2"
@@ -379,9 +379,9 @@ TEST(SubgraphExpansionTest, ConnectSubgraphStreams) {
           input_side_packet: "side_input"
           output_side_packet: "side_output"
         }
-      )");
+      )pb");
   CalculatorGraphConfig supergraph =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         node {
           calculator: "SomeSubgraph"
           input_stream: "A:foo"
@@ -390,11 +390,11 @@ TEST(SubgraphExpansionTest, ConnectSubgraphStreams) {
           input_side_packet: "SI:flip"
           output_side_packet: "SO:flop"
         }
-      )");
+      )pb");
   // Note: graph input streams, output streams, and side packets on the
   // subgraph are not changed because they are going to be discarded anyway.
   CalculatorGraphConfig expected_subgraph =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         input_stream: "A:input_1"
         input_stream: "B:input_2"
         output_stream: "O:output_2"
@@ -418,23 +418,23 @@ TEST(SubgraphExpansionTest, ConnectSubgraphStreams) {
           input_side_packet: "flip"
           output_side_packet: "flop"
         }
-      )");
+      )pb");
   MP_EXPECT_OK(tool::ConnectSubgraphStreams(supergraph.node()[0], &subgraph));
   EXPECT_THAT(subgraph, mediapipe::EqualsProto(expected_subgraph));
 }
 
 TEST(SubgraphExpansionTest, ExpandSubgraphs) {
   CalculatorGraphConfig supergraph =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         node {
           name: "simple_source"
           calculator: "SomeSourceCalculator"
           output_stream: "foo"
         }
         node { calculator: "TestSubgraph" input_stream: "DATA:foo" }
-      )");
+      )pb");
   CalculatorGraphConfig expected_graph =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         node {
           name: "simple_source"
           calculator: "SomeSourceCalculator"
@@ -456,14 +456,14 @@ TEST(SubgraphExpansionTest, ExpandSubgraphs) {
           packet_generator: "SomePacketGenerator"
           output_side_packet: "testsubgraph__side"
         }
-      )");
+      )pb");
   MP_EXPECT_OK(tool::ExpandSubgraphs(&supergraph));
   EXPECT_THAT(supergraph, mediapipe::EqualsProto(expected_graph));
 }
 
 TEST(SubgraphExpansionTest, ValidateSubgraphFields) {
   CalculatorGraphConfig supergraph =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         node {
           name: "simple_source"
           calculator: "SomeSourceCalculator"
@@ -475,7 +475,7 @@ TEST(SubgraphExpansionTest, ValidateSubgraphFields) {
           input_stream: "DATA:foo"
           buffer_size_hint: -1  # This field is only applicable to calculators.
         }
-      )");
+      )pb");
   absl::Status s1 = tool::ValidateSubgraphFields(supergraph.node(1));
   EXPECT_EQ(s1.code(), absl::StatusCode::kInvalidArgument);
   EXPECT_THAT(s1.message(), testing::HasSubstr("foo_subgraph"));
@@ -491,7 +491,7 @@ TEST(SubgraphExpansionTest, ValidateSubgraphFields) {
 // subgraph executor support in the future.
 TEST(SubgraphExpansionTest, ExecutorFieldOfNodeInSubgraphPreserved) {
   CalculatorGraphConfig supergraph =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         input_stream: "input"
         executor {
           name: "custom_thread_pool"
@@ -505,9 +505,9 @@ TEST(SubgraphExpansionTest, ExecutorFieldOfNodeInSubgraphPreserved) {
           input_stream: "IN:input"
           output_stream: "OUT:output"
         }
-      )");
+      )pb");
   CalculatorGraphConfig expected_graph = mediapipe::ParseTextProtoOrDie<
-      CalculatorGraphConfig>(R"(
+      CalculatorGraphConfig>(R"pb(
     input_stream: "input"
     executor {
       name: "custom_thread_pool"
@@ -523,7 +523,7 @@ TEST(SubgraphExpansionTest, ExecutorFieldOfNodeInSubgraphPreserved) {
       output_stream: "output"
       executor: "custom_thread_pool"
     }
-  )");
+  )pb");
   MP_EXPECT_OK(tool::ExpandSubgraphs(&supergraph));
   EXPECT_THAT(supergraph, mediapipe::EqualsProto(expected_graph));
 }
@@ -545,17 +545,17 @@ REGISTER_MEDIAPIPE_GRAPH(GraphServicesClientTestSubgraph);
 
 TEST(SubgraphExpansionTest, GraphServicesUsage) {
   CalculatorGraphConfig supergraph =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         node { calculator: "GraphServicesClientTestSubgraph" }
-      )");
+      )pb");
 
   CalculatorGraphConfig expected_graph =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         node {
           name: "graphservicesclienttestsubgraph__ExpectedNode"
           calculator: "ExpectedNode"
         }
-      )");
+      )pb");
   GraphServiceManager service_manager;
   MP_ASSERT_OK(service_manager.SetServiceObject(
       kStringTestService, std::make_shared<std::string>("ExpectedNode")));

mediapipe/framework/tool/switch_container_test.cc

@@ -67,7 +67,7 @@ REGISTER_CALCULATOR(TripleIntCalculator);
 // Note that the input and output tags supplied to the container node,
 // must match the input and output tags required by the subnodes.
 CalculatorGraphConfig SubnodeContainerExample() {
-  return mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+  return mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
     input_stream: "foo"
     input_stream: "enable"
     input_side_packet: "timezone"
@@ -90,14 +90,14 @@ CalculatorGraphConfig SubnodeContainerExample() {
       output_stream: "output_foo"
       output_stream: "output_bar"
     }
-  )");
+  )pb");
 }
 
 // A testing example of a SwitchContainer containing two subnodes.
 // Note that the side-input and side-output tags supplied to the container node,
 // must match the side-input and side-output tags required by the subnodes.
 CalculatorGraphConfig SideSubnodeContainerExample() {
-  return mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+  return mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
     input_side_packet: "foo"
     input_side_packet: "enable"
     output_side_packet: "output_bar"
@@ -120,7 +120,7 @@ CalculatorGraphConfig SideSubnodeContainerExample() {
       output_side_packet: "output_foo"
       output_side_packet: "output_bar"
     }
-  )");
+  )pb");
 }
 
 // Runs the test container graph with a few input packets.
@@ -217,7 +217,7 @@ TEST(SwitchContainerTest, ApplyToSubnodes) {
   EXPECT_TRUE(SubgraphRegistry::IsRegistered("SwitchContainer"));
   CalculatorGraphConfig supergraph = SubnodeContainerExample();
   CalculatorGraphConfig expected_graph =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         node {
           name: "switchcontainer__SwitchDemuxCalculator"
           calculator: "SwitchDemuxCalculator"
@@ -256,7 +256,7 @@ TEST(SwitchContainerTest, ApplyToSubnodes) {
         input_stream: "foo"
         input_stream: "enable"
         input_side_packet: "timezone"
-      )");
+      )pb");
   expected_graph = OrderNodes(expected_graph, {4, 0, 3, 1, 2});
   MP_EXPECT_OK(tool::ExpandSubgraphs(&supergraph));
   EXPECT_THAT(supergraph, mediapipe::EqualsProto(expected_graph));
@@ -275,7 +275,7 @@ TEST(SwitchContainerTest, ApplyToSideSubnodes) {
   EXPECT_TRUE(SubgraphRegistry::IsRegistered("SwitchContainer"));
   CalculatorGraphConfig supergraph = SideSubnodeContainerExample();
   CalculatorGraphConfig expected_graph =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         input_side_packet: "foo"
         input_side_packet: "enable"
         output_side_packet: "output_bar"
@@ -314,7 +314,7 @@ TEST(SwitchContainerTest, ApplyToSideSubnodes) {
           output_side_packet: "output_foo"
           output_side_packet: "output_bar"
         }
-      )");
+      )pb");
   expected_graph = OrderNodes(expected_graph, {4, 0, 3, 1, 2});
   MP_EXPECT_OK(tool::ExpandSubgraphs(&supergraph));
   EXPECT_THAT(supergraph, mediapipe::EqualsProto(expected_graph));
@@ -332,7 +332,7 @@ TEST(SwitchContainerTest, RunWithSideSubnodes) {
 TEST(SwitchContainerTest, ValidateSideInputs) {
   EXPECT_TRUE(SubgraphRegistry::IsRegistered("SwitchContainer"));
   CalculatorGraphConfig supergraph =
-      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"(
+      mediapipe::ParseTextProtoOrDie<CalculatorGraphConfig>(R"pb(
         input_side_packet: "foo"
         input_side_packet: "enable"
         output_side_packet: "output_bar"
@@ -356,7 +356,7 @@ TEST(SwitchContainerTest, ValidateSideInputs) {
           output_side_packet: "output_foo"
           output_side_packet: "output_bar"
         }
-      )");
+      )pb");
   auto status = tool::ExpandSubgraphs(&supergraph);
   EXPECT_EQ(std::pair(status.code(), std::string(status.message())),
             std::pair(absl::StatusCode::kInvalidArgument,