make building tests optional:

* disable build specific commandline options when built without tests

.travis.yml

@@ -123,6 +123,25 @@ matrix:
         - CMAKE_ADD="-Dcoverage=ON"
         - TARGET=coverage_report
         - SKIP_TESTS=true
+    # test-free builds
+    - <<: *linux
+      if: commit_message !~ /travis_run_/ OR commit_message =~ /travis_run_linux/
+      compiler: gcc-8
+      name: no-tests-unity, gcc-8
+      env:
+        - MATRIX_EVAL="CC=gcc-8 && CXX=g++-8"
+        - BUILD_TYPE=Debug
+        - CMAKE_ADD="-Dtests=OFF"
+        - SKIP_TESTS=true
+    - <<: *linux
+      if: commit_message !~ /travis_run_/ OR commit_message =~ /travis_run_linux/
+      compiler: clang-8
+      name: no-tests-non-unity, clang-8
+      env:
+        - MATRIX_EVAL="CC=clang-8 && CXX=clang++-8"
+        - BUILD_TYPE=Debug
+        - CMAKE_ADD="-Dtests=OFF -Dunity=OFF"
+        - SKIP_TESTS=true
     # nounity
     - <<: *linux
       if: commit_message !~ /travis_run_/ OR commit_message =~ /travis_run_linux/ OR commit_message =~ /travis_run_nounity/

Builds/CMake/RippledCore.cmake

@@ -292,6 +292,7 @@ install (
 # WARNING!! -- horrible levelization ahead
 # (these files should be isolated or moved...but
 #  unfortunately unit_test.h above creates this dependency)
+if (tests)
   install (
     FILES
       src/beast/extras/beast/unit_test/amount.hpp
@@ -311,7 +312,7 @@ install (
     FILES
       src/beast/extras/beast/unit_test/detail/const_container.hpp
     DESTINATION include/beast/unit_test/detail)
-
+endif () #tests
 #[===================================================================[
    rippled executable
 #]===================================================================]
@@ -325,6 +326,9 @@ add_executable (rippled src/ripple/app/main/Application.h)
 if (unity)
   set_target_properties(rippled PROPERTIES UNITY_BUILD ON)
 endif ()
+if (tests)
+    target_compile_definitions(rippled PUBLIC ENABLE_TESTS)
+endif()
 target_sources (rippled PRIVATE
   #[===============================[
      main sources:
@@ -655,11 +659,14 @@ target_sources (rippled PRIVATE
   src/ripple/shamap/impl/SHAMapNodeID.cpp
   src/ripple/shamap/impl/SHAMapSync.cpp
   src/ripple/shamap/impl/SHAMapTreeNode.cpp
-  src/ripple/shamap/impl/ShardFamily.cpp
+  src/ripple/shamap/impl/ShardFamily.cpp)
+
   #[===============================[
      test sources:
        subdir: app
   #]===============================]
+if (tests)
+  target_sources (rippled PRIVATE
     src/test/app/AccountDelete_test.cpp
     src/test/app/AccountTxPaging_test.cpp
     src/test/app/AmendmentTable_test.cpp
@@ -966,6 +973,8 @@ target_sources (rippled PRIVATE
          subdir: unit_test
     #]===============================]
     src/test/unit_test/multi_runner.cpp)
+endif () #tests
+
 target_link_libraries (rippled
   Ripple::boost
   Ripple::opts
@@ -985,9 +994,11 @@ endif ()
 
 if (CMAKE_VERSION VERSION_GREATER_EQUAL 3.16)
   # any files that don't play well with unity should be added here
+  if (tests)
     set_source_files_properties(
       # these two seem to produce conflicts in beast teardown template methods
       src/test/rpc/ValidatorRPC_test.cpp
       src/test/rpc/ShardArchiveHandler_test.cpp
       PROPERTIES SKIP_UNITY_BUILD_INCLUSION TRUE)
+  endif () #tests
 endif ()

Builds/CMake/RippledDocs.cmake

@@ -1,7 +1,7 @@
 #[===================================================================[
    docs target (optional)
 #]===================================================================]
-
+if (tests)
   find_package (Doxygen)
   if (NOT TARGET Doxygen::doxygen)
     message (STATUS "doxygen executable not found -- skipping docs target")
@@ -76,3 +76,4 @@ add_custom_command (
   add_custom_target (docs
     DEPENDS "${doxygen_index_file}"
     SOURCES "${dependencies}")
+endif ()

Builds/CMake/RippledSettings.cmake

@@ -6,6 +6,8 @@ option (assert "Enables asserts, even in release builds" OFF)
 
 option (reporting "Build rippled with reporting mode enabled" OFF)
 
+option (tests "Build tests" ON)
+
 option (unity "Creates a build using UNITY support in cmake. This is the default" ON)
 if (unity)
   if (CMAKE_VERSION VERSION_LESS 3.16)

src/ripple/app/main/Main.cpp

@@ -34,8 +34,10 @@
 #include <ripple/resource/Fees.h>
 #include <ripple/rpc/RPCHandler.h>
 
+#ifdef ENABLE_TESTS
 #include <beast/unit_test/match.hpp>
 #include <test/unit_test/multi_runner.h>
+#endif  // ENABLE_TESTS
 
 #include <google/protobuf/stubs/common.h>
 
@@ -184,6 +186,7 @@ printHelp(const po::options_description& desc)
 
 //------------------------------------------------------------------------------
 
+#ifdef ENABLE_TESTS
 /* simple unit test selector that allows a comma separated list
  * of selectors
  */
@@ -335,6 +338,7 @@ runUnitTests(
     }
 }
 
+#endif  // ENABLE_TESTS
 //------------------------------------------------------------------------------
 
 int
@@ -405,6 +409,7 @@ run(int argc, char** argv)
         "DEPRECATED: include with rpc_ip instead. "
         "Specify the port number for RPC command.");
 
+#ifdef ENABLE_TESTS
     po::options_description test("Unit Test Options");
     test.add_options()(
         "quiet,q",
@@ -433,6 +438,7 @@ run(int argc, char** argv)
         "unittest-jobs",
         po::value<std::size_t>(),
         "Number of unittest jobs to run in parallel (child processes).");
+#endif  // ENABLE_TESTS
 
     // These are hidden options, not intended to be shown in the usage/help
     // message
@@ -443,20 +449,37 @@ run(int argc, char** argv)
         "Specify rpc command and parameters. This option must be repeated "
         "for each command/param. Positional parameters also serve this "
         "purpose, "
-        "so this option is not needed for users")(
-        "unittest-child",
-        "For internal use only when spawning child unit test processes.")(
-        "fg", "Deprecated: server always in foreground mode.");
+        "so this option is not needed for users")
+#ifdef ENABLE_TESTS
+        ("unittest-child",
+         "For internal use only when spawning child unit test processes.")
+#else
+        ("unittest", "Disabled in this build.")(
+            "unittest-child", "Disabled in this build.")
+#endif  // ENABLE_TESTS
+            ("fg", "Deprecated: server always in foreground mode.");
 
     // Interpret positional arguments as --parameters.
     po::positional_options_description p;
     p.add("parameters", -1);
 
     po::options_description all;
-    all.add(gen).add(rpc).add(data).add(test).add(hidden);
+    all.add(gen)
+        .add(rpc)
+        .add(data)
+#ifdef ENABLE_TESTS
+        .add(test)
+#endif  // ENABLE_TESTS
+        .add(hidden);
 
     po::options_description desc;
-    desc.add(gen).add(rpc).add(data).add(test);
+    desc.add(gen)
+        .add(rpc)
+        .add(data)
+#ifdef ENABLE_TESTS
+        .add(test)
+#endif  // ENABLE_TESTS
+        ;
 
     // Parse options, if no error.
     try
@@ -489,6 +512,14 @@ run(int argc, char** argv)
         return 0;
     }
 
+#ifndef ENABLE_TESTS
+    if (vm.count("unittest") || vm.count("unittest-child"))
+    {
+        std::cerr << "rippled: Tests disabled in this build." << std::endl;
+        std::cerr << "Try 'rippled --help' for a list of options." << std::endl;
+        return 1;
+    }
+#else
     // Run the unit tests if requested.
     // The unit tests will exit the application with an appropriate return code.
     //
@@ -528,6 +559,7 @@ run(int argc, char** argv)
             return 1;
         }
     }
+#endif  // ENABLE_TESTS
 
     auto config = std::make_unique<Config>();
 

src/ripple/rpc/ShardArchiveHandler.h

@@ -31,9 +31,11 @@
 #include <boost/filesystem.hpp>
 
 namespace ripple {
+#ifdef ENABLE_TESTS
 namespace test {
 class ShardArchiveHandler_test;
 }
+#endif  // ENABLE_TESTS
 namespace RPC {
 
 /** Handles the download and import of one or more shard archives. */
@@ -42,7 +44,9 @@ class ShardArchiveHandler
 public:
     using TimerOpCounter =
         ClosureCounter<void, boost::system::error_code const&>;
+#ifdef ENABLE_TESTS
     friend class test::ShardArchiveHandler_test;
+#endif  // ENABLE_TESTS
 
     static boost::filesystem::path
     getDownloadDirectory(Config const& config);