[ci] Build flutter_tizen_unittests conditionally (#246)

Author: swift-kim

.github/workflows/build.yml

@@ -82,7 +82,12 @@ jobs:
             --no-build-embedder-examples \
             --embedder-for-target \
             --build-tizen-shell
-          ninja -C src/out/$OUTPUT_NAME tizen flutter_tizen_unittests
+          ninja -C src/out/$OUTPUT_NAME tizen
+
+          # Build unittests.
+          if [[ "$OUTPUT_NAME" == "linux_release_arm" ]]; then
+            ninja -C src/out/$OUTPUT_NAME flutter_tizen_unittests
+          fi
 
           src/flutter/ci/tizen/cache-checksum.sh save src/out/$OUTPUT_NAME
 

BUILD.gn

@@ -6,6 +6,7 @@ import("//flutter/common/config.gni")
 import("//flutter/examples/examples.gni")
 import("//flutter/shell/platform/config.gni")
 import("//flutter/shell/platform/glfw/config.gni")
+import("//flutter/shell/platform/tizen/config.gni")
 import("//flutter/testing/testing.gni")
 import("//third_party/dart/build/dart/copy_tree.gni")
 
@@ -135,6 +136,10 @@ group("flutter") {
         [ "//flutter/shell/platform/android:flutter_shell_native_unittests" ]
   }
 
+  if (build_tizen_shell) {
+    public_deps += [ "//flutter/shell/platform/tizen:flutter_tizen_unittests" ]
+  }
+
   # Compile all unittests targets if enabled.
   if (enable_unittests) {
     public_deps += [