diff --git a/clang-tools-extra/clangd/test/CMakeLists.txt b/clang-tools-extra/clangd/test/CMakeLists.txt
--- a/clang-tools-extra/clangd/test/CMakeLists.txt
+++ b/clang-tools-extra/clangd/test/CMakeLists.txt
@@ -11,8 +11,8 @@
 set(CLANGD_TEST_DEPS
   clangd
   ClangdTests
-  # No tests for these, but we should still make sure they build.
   clangd-indexer
+  # No tests for it, but we should still make sure they build.
   dexp
   )
 
diff --git a/clang-tools-extra/clangd/test/Inputs/remote-index/Header.h b/clang-tools-extra/clangd/test/Inputs/remote-index/Header.h
new file mode 100644
--- /dev/null
+++ b/clang-tools-extra/clangd/test/Inputs/remote-index/Header.h
@@ -0,0 +1,10 @@
+namespace clang {
+namespace clangd {
+namespace remote {
+int getFoo(bool Argument);
+char Character;
+} // namespace remote
+} // namespace clangd
+} // namespace clang
+
+namespace llvm {} // namespace llvm
diff --git a/clang-tools-extra/clangd/test/Inputs/remote-index/Source.cpp b/clang-tools-extra/clangd/test/Inputs/remote-index/Source.cpp
new file mode 100644
--- /dev/null
+++ b/clang-tools-extra/clangd/test/Inputs/remote-index/Source.cpp
@@ -0,0 +1,3 @@
+#include "Header.h"
+
+namespace {} // namespace
diff --git a/clang-tools-extra/clangd/test/lit.cfg.py b/clang-tools-extra/clangd/test/lit.cfg.py
--- a/clang-tools-extra/clangd/test/lit.cfg.py
+++ b/clang-tools-extra/clangd/test/lit.cfg.py
@@ -14,7 +14,7 @@
 # Used to enable tests based on the required targets. Can be queried with e.g.
 #    REQUIRES: x86-registered-target
 def calculate_arch_features(arch_string):
-  return [arch.lower() + '-registered-target' for arch in arch_string.split()]
+    return [arch.lower() + '-registered-target' for arch in arch_string.split()]
 
 
 lit.llvm.llvm_config.feature_config([('--targets-built',
@@ -25,4 +25,7 @@
                              config.clangd_binary_dir + "/benchmarks"))
 
 if config.clangd_build_xpc:
-  config.available_features.add('clangd-xpc-support')
+    config.available_features.add('clangd-xpc-support')
+
+if config.clangd_enable_remote:
+    config.available_features.add('clangd-remote-index')
diff --git a/clang-tools-extra/clangd/test/lit.site.cfg.py.in b/clang-tools-extra/clangd/test/lit.site.cfg.py.in
--- a/clang-tools-extra/clangd/test/lit.site.cfg.py.in
+++ b/clang-tools-extra/clangd/test/lit.site.cfg.py.in
@@ -23,6 +23,7 @@
 config.clangd_source_dir = "@CMAKE_CURRENT_SOURCE_DIR@/.."
 config.clangd_binary_dir = "@CMAKE_CURRENT_BINARY_DIR@/.."
 config.clangd_build_xpc = @CLANGD_BUILD_XPC@
+config.clangd_enable_remote = @CLANGD_ENABLE_REMOTE@
 
 # Delegate logic to lit.cfg.py.
 lit_config.load_config(config, "@CMAKE_CURRENT_SOURCE_DIR@/lit.cfg.py")
diff --git a/clang-tools-extra/clangd/test/remote-index/pipeline.test b/clang-tools-extra/clangd/test/remote-index/pipeline.test
new file mode 100644
--- /dev/null
+++ b/clang-tools-extra/clangd/test/remote-index/pipeline.test
@@ -0,0 +1,47 @@
+# FIXME: Unsupported on Windows because of POSIX features (export, &, kill).
+# UNSUPPORTED: darwin, windows
+# RUN: rm -rf %/t
+# RUN: export PROJECT_ROOT=%/S/../Inputs/remote-index/
+# RUN: clangd-indexer $PROJECT_ROOT/Source.cpp > %t.in.dex
+# FIXME: Check that default address (0.0.0.0:50051) is available.
+# RUN: export SERVER_ADDRESS="0.0.0.0:50051"
+# RUN: clangd-index-server --server-address=$SERVER_ADDRESS %t.in.dex $PROJECT_ROOT & export PID=$!
+# RUN: sleep 2
+# RUN: clangd --remote-index-address=$SERVER_ADDRESS --project-root=$PROJECT_ROOT --lit-test < %s | FileCheck %s
+# RUN: kill -9 $PID
+# REQUIRES: clangd-remote-index
+
+{"jsonrpc":"2.0","id":0,"method":"initialize","params":{"processId":123,"rootPath":"clangd","capabilities":{},"trace":"off"}}
+#      CHECK:  "id": 0,
+# CHECK-NEXT:  "jsonrpc": "2.0",
+---
+{"jsonrpc":"2.0","id":1,"method":"workspace/symbol","params":{"query":"Character"}}
+#      CHECK:  "id": 1,
+# CHECK-NEXT:  "jsonrpc": "2.0",
+# CHECK-NEXT:    "result": [
+# CHECK-NEXT:      {
+# CHECK-NEXT:        "containerName": "clang::clangd::remote",
+# CHECK-NEXT:        "kind": 13,
+# CHECK-NEXT:        "location": {
+# CHECK-NEXT:          "range": {
+# CHECK-NEXT:            "end": {
+# CHECK-NEXT:              "character": {{.*}},
+# CHECK-NEXT:              "line": {{.*}}
+# CHECK-NEXT:            },
+# CHECK-NEXT:            "start": {
+# CHECK-NEXT:              "character": {{.*}},
+# CHECK-NEXT:              "line": {{.*}}
+# CHECK-NEXT:            }
+# CHECK-NEXT:          },
+# CHECK-NEXT:          "uri": "file://{{.*}}/Header.h"
+# CHECK-NEXT:        },
+# CHECK-NEXT:        "name": "Character",
+# CHECK-NEXT:        "score": {{.*}}
+# CHECK-NEXT:      }
+# CHECK-NEXT:    ]
+# CHECK-NEXT:}
+---
+{"jsonrpc":"2.0","id":4,"method":"shutdown"}
+---
+{"jsonrpc":"2.0","method":"exit"}
+---