[Chromecast] Allow recursive dependencies for cast_test_groups.

Forward invoker dependencies such that a cast_test_group can depend on
another cast_test_group. Enforce these dependencies for the build steps
as well as the filter generation.

Bug: b/27303049
Test: Filters file is correct.

BUG=

Review URL: https://codereview.chromium.org/1776103003

Cr-Commit-Position: refs/heads/master@{#379923}

1 files changed, 19 insertions, 0 deletions

diff --git a/chromecast/build/tests/cast_test.gni b/chromecast/build/tests/cast_test.gni
index ee79bd0..1c56095 100644
--- a/chromecast/build/tests/cast_test.gni
+++ b/chromecast/build/tests/cast_test.gni
@@ -139,6 +139,13 @@ template("cast_test_group") {
     ]
 
     args += _test_names
+
+    deps = []
+    if (defined(invoker.deps)) {
+      foreach(_dep, invoker.deps) {
+        deps += [ _dep + "_create_list" ]
+      }
+    }
   }
 
   # This action generates a list of test filters, which will have a priority
@@ -158,6 +165,13 @@ template("cast_test_group") {
     ]
 
     args += _filters
+
+    deps = []
+    if (defined(invoker.deps)) {
+      foreach(_dep, invoker.deps) {
+        deps += [ _dep + "_filters" ]
+      }
+    }
   }
 
   # This target allows us to reference each test as a fully-qualified GN path,
@@ -167,6 +181,11 @@ template("cast_test_group") {
   group(target_name + "_build_tests") {
     testonly = true
     deps = invoker.tests
+    if (defined(invoker.deps)) {
+      foreach(_dep, invoker.deps) {
+        deps += [ _dep + "_build_tests" ]
+      }
+    }
   }
 }