Add stub test flag for Unity build

Author: Cynthia Jiang

CMakeLists.txt

@@ -61,6 +61,8 @@ option(FIREBASE_INCLUDE_STORAGE
 
 option(FIREBASE_CPP_BUILD_TESTS
        "Enable the Firebase C++ Build Tests." OFF)
+option(FIREBASE_CPP_BUILD_STUB_TESTS
+       "Enable the Firebase C++ Build Stub Tests." OFF)
 option(FIREBASE_FORCE_FAKE_SECURE_STORAGE
        "Disable use of platform secret store and use fake impl." OFF)
 option(FIREBASE_CPP_BUILD_PACKAGE
@@ -107,7 +109,7 @@ list(INSERT CMAKE_MODULE_PATH 0 ${CMAKE_CURRENT_LIST_DIR}/cmake)
 include(external_rules)
 include(cpp_pack)
 
-if(FIREBASE_CPP_BUILD_TESTS)
+if(FIREBASE_CPP_BUILD_TESTS OR FIREBASE_CPP_BUILD_STUB_TESTS)
   enable_testing()
   include(test_rules)
   # Copy the custom CTest file into the binary directory, so that it is used.
@@ -296,11 +298,13 @@ endif()
 if(FIRESTORE_USE_EXTERNAL_CMAKE_BUILD)
   set(FIRESTORE_BINARY_DIR ${FIRESTORE_SOURCE_DIR}-build)
 
-  set(
-    FIREBASE_IOS_BUILD_TESTS
-    ${FIREBASE_CPP_BUILD_TESTS}
-    CACHE BOOL "Force Firestore build tests to match"
-  )
+  if(FIREBASE_CPP_BUILD_TESTS OR FIREBASE_CPP_BUILD_STUB_TESTS)
+    set(FIREBASE_IOS_BUILD_TESTS ON
+    CACHE BOOL "Force Firestore build tests to match")
+  else()
+    set(FIREBASE_IOS_BUILD_TESTS OFF
+    CACHE BOOL "Force Firestore build tests to match")
+  endif()
 
   add_subdirectory(${FIRESTORE_SOURCE_DIR} ${FIRESTORE_BINARY_DIR})
 
@@ -328,9 +332,11 @@ else()
   add_external_library(flatbuffers)
 endif()
 
-if(FIREBASE_CPP_BUILD_TESTS AND NOT FIRESTORE_USE_EXTERNAL_CMAKE_BUILD)
-  # Firestore's external build pulls in GoogleTest
-  add_external_library(googletest)
+if(FIREBASE_CPP_BUILD_TESTS OR FIREBASE_CPP_BUILD_STUB_TESTSAND)
+  if (NOT FIRESTORE_USE_EXTERNAL_CMAKE_BUILD)
+    # Firestore's external build pulls in GoogleTest
+    add_external_library(googletest)
+  endif()
 endif()
 
 if((FIREBASE_INCLUDE_DATABASE AND DESKTOP) AND NOT FIREBASE_INCLUDE_FIRESTORE)
@@ -525,7 +531,7 @@ add_subdirectory(ios_pod)
 
 # If we're building tests, we need to include the 'testing' folder before any
 # of the tests actually get built.
-if(FIREBASE_CPP_BUILD_TESTS)
+if(FIREBASE_CPP_BUILD_TESTS OR FIREBASE_CPP_BUILD_STUB_TESTS)
   add_subdirectory(testing)
 endif()
 

cmake/external/CMakeLists.txt

@@ -38,7 +38,7 @@ if (${FIREBASE_EXTERNAL_PLATFORM} STREQUAL "DESKTOP")
 endif()
 
 # Support files for the test framework.
-if(FIREBASE_CPP_BUILD_TESTS)
+if(FIREBASE_CPP_BUILD_TESTS OR FIREBASE_CPP_BUILD_STUB_TESTS)
   include(googletest)
 
   # Download the iOS SDK Frameworks required for linking the tests.

cmake/external/firebase_ios_sdk.cmake

@@ -36,7 +36,7 @@ set(ZIP_FILENAME "./firebase_sdk_${SDK_VERSION}.zip")
 set(OUTDIR "./firebase_ios_sdk/")
 
 # Download as required.
-if(FIREBASE_CPP_BUILD_TESTS)
+if(FIREBASE_CPP_BUILD_TESTS OR FIREBASE_CPP_BUILD_STUB_TESTS)
   if(NOT EXISTS ${OUTDIR})
     if(NOT EXISTS ${ZIP_FILENAME})
       file(DOWNLOAD ${URL} ${ZIP_FILENAME}) 

cmake/external_rules.cmake

@@ -61,6 +61,12 @@ function(download_external_sources)
   check_use_local_directory(ZLIB)
   check_use_local_directory(FIREBASE_IOS_SDK)
 
+  if(FIREBASE_CPP_BUILD_TESTS OR FIREBASE_CPP_BUILD_STUB_TESTS)
+    set(FIREBASE_DOWNLOAD_GTEST ON)
+  else()
+    set(FIREBASE_DOWNLOAD_GTEST OFF)
+  endif()
+
   execute_process(
     COMMAND
       ${ENV_COMMAND} ${CMAKE_COMMAND}
@@ -74,13 +80,14 @@ function(download_external_sources)
       -DDOWNLOAD_BORINGSSL=${DOWNLOAD_BORINGSSL}
       -DDOWNLOAD_CURL=${DOWNLOAD_CURL}
       -DDOWNLOAD_FLATBUFFERS=${DOWNLOAD_FLATBUFFERS}
-      -DDOWNLOAD_GOOGLETEST=${FIREBASE_CPP_BUILD_TESTS}
+      -DDOWNLOAD_GOOGLETEST=${FIREBASE_DOWNLOAD_GTEST}
       -DDOWNLOAD_LIBUV=${DOWNLOAD_LIBUV}
       -DDOWNLOAD_NANOPB=${DOWNLOAD_NANOPB}
       -DDOWNLOAD_UWEBSOCKETS=${DOWNLOAD_UWEBSOCKETS}
       -DDOWNLOAD_ZLIB=${DOWNLOAD_ZLIB}
       -DDOWNLOAD_FIREBASE_IOS_SDK=${DOWNLOAD_FIREBASE_IOS_SDK}
       -DFIREBASE_CPP_BUILD_TESTS=${FIREBASE_CPP_BUILD_TESTS}
+      -DFIREBASE_CPP_BUILD_STUB_TESTS=${FIREBASE_CPP_BUILD_STUB_TESTS}
       ${PROJECT_SOURCE_DIR}/cmake/external
     OUTPUT_FILE ${PROJECT_BINARY_DIR}/external/output_cmake_config.txt
     WORKING_DIRECTORY ${PROJECT_BINARY_DIR}/external