[ios Mojo] Integration test for Mojo WebUI.

ios/web/test/BUILD.gn

Index: ios/web/test/BUILD.gn
diff --git a/ios/web/test/BUILD.gn b/ios/web/test/BUILD.gn
index e87674672101ffec29e22b0571147761d97e384e..1e71c3a357fecaf07be84251c9474693758451aa 100644
--- a/ios/web/test/BUILD.gn
+++ b/ios/web/test/BUILD.gn
@@ -3,9 +3,37 @@
 # found in the LICENSE file.
 
 import("//mojo/public/tools/bindings/mojom.gni")
+import("//tools/grit/grit_rule.gni")
+import("//tools/grit/repack.gni")
 
 mojom("mojo_bindings") {
   sources = [
     "mojo_test.mojom",
   ]
 }
+
+repack("repacked_resources") {

[sdefresne, 2016/05/26 17:45:19]

Rename the target "packed_resources" as it is the more common name in BUILD.gn
files.

If you want the files to be in the generated application bundle, use
repack_and_bundle instead:

repack_and_bundle("packed_resources") {
  testonly = true
  sources = [  
    "$root_gen_dir/ios/web/ios_web_resources.pak",
    "$root_gen_dir/ios/web/test/test_resources.pak",
  ]
  output = "$target_gen_dir/resources.pack"
  bundle_output =
    "{{bundle_resources_dir}}/{{source_file_part}}"
}

[Eugene But (OOO till 7-30), 2016/05/26 20:53:32]

Done except I could not add testonly because of this error:

ERROR at //ios/web/test/BUILD.gn:17:14: Assignment had no effect.
  testonly = true

[sdefresne, 2016/05/28 13:04:01]

Ack, this is because the "repack" template did not forward the variable. I've
created https://codereview.chromium.org/2006273005 to address this. Can you
still add the "testonly" here and everywhere else but commented with a TODO to
remove it? We can then fix it as soon as my other CL lands.

+  sources = [

[sdefresne, 2016/05/26 17:45:19]

testonly = true

[Eugene But (OOO till 7-30), 2016/05/26 20:53:32]

This gives me an error:

ERROR at //ios/web/test/BUILD.gn:17:14: Assignment had no effect.
  testonly = true
             ^---
You set the variable "testonly" here and it was unused before it went
out of scope.
See //ios/web/BUILD.gn:317:5: which caused the file to be included.
    "//ios/web/test:mojo_bindings",
    ^-----------------------------

+    "$root_gen_dir/ios/web/ios_web_resources.pak",
+    "$root_gen_dir/ios/web/test/test_resources.pak",
+  ]
+  deps = [
+    ":resources",
+    "//ios/web:resources",
+  ]
+  output = "$target_gen_dir/ios/web/test/resources.pak"

[sdefresne, 2016/05/26 17:45:19]

See my previous comment about target_gen_dir, this should be:

output = "$target_gen_dir/resources.pak"

[Eugene But (OOO till 7-30), 2016/05/26 20:53:32]

Done.

+}
+
+grit("resources") {
+  source = "test_resources.grd"

[sdefresne, 2016/05/26 17:45:19]

testonly = true

[Eugene But (OOO till 7-30), 2016/05/26 20:53:32]

Gives me same error:
ERROR at //ios/web/test/BUILD.gn:26:14: Assignment had no effect.
  testonly = true

+  use_qualified_include = true
+  outputs = [
+    "grit/test_resources.h",
+    "test_resources.pak",
+  ]
+  grit_flags = [
+    "-E",
+    "root_out_dir=" + rebase_path(root_out_dir, root_build_dir),

[sdefresne, 2016/05/26 17:45:19]

This should be "root_gen_dir=".

[Eugene But (OOO till 7-30), 2016/05/26 20:53:32]

Done.

+  ]
+  output_dir = "$root_gen_dir/ios/web/test"
+}