Inject correct mode flagfile

Reviewed By: JakobDegen

Differential Revision: D59679509

fbshipit-source-id: 191b7204a1e1207288b95a38591f20295524f9db

tests/check_dependencies_test.bzl

@@ -17,6 +17,7 @@ def check_dependencies_test(
         allowlist_patterns = None,
         blocklist_patterns = None,
         expect_failure_msg = None,
+        env = None,
         **kwargs):
     """
     Creates a test target from a buck2 bxl script. BXL script must use "test" as entry
@@ -29,12 +30,14 @@ def check_dependencies_test(
         allowlist_patterns: a regex of patterns that should be allowed in transitive deps of the target
         blocklist_patterns: a regex of patterns that should be blocked in transitive deps of the target
         expect_failure_msg: the test is expected to fail with this message regex
+        env: additional environment variables to pass to the checking script
     """
     bxl_main = "fbcode//buck2/tests/check_dependencies_test.bxl:test"
     allowlist_patterns = ",".join(allowlist_patterns) if allowlist_patterns else ""
     blocklist_patterns = ",".join(blocklist_patterns) if blocklist_patterns else ""
     if not (expect_failure_msg == None or len(expect_failure_msg) > 0):
         fail("Expected failure message can only be None or non-empty string")
+
     buck2_e2e_test(
         contacts = contacts,
         name = name,
@@ -45,7 +48,7 @@ def check_dependencies_test(
             "BXL_MAIN": bxl_main,
             "EXPECT_FAILURE_MSG": expect_failure_msg or "",
             "TARGET": target,
-        },
+        } | (env or {}),
         # fbcode_macros uses tags instead of labels
         tags = ["check_dependencies_test"],
         test_with_compiled_buck2 = False,

tests/e2e_util/buck_workspace.py

@@ -401,22 +401,24 @@ def is_deployed_buck2() -> bool:
     return os.environ.get("TEST_EXECUTABLE") == "buck2"
 
 
-def get_mode_from_platform(mode="dev", prefix=True) -> str:
-    if mode not in ("dev", "opt"):
+def get_mode_from_platform(
+    mode="dev", prefix=True, skip_validation_i_know_what_im_doing=False
+) -> str:
+    if not skip_validation_i_know_what_im_doing and (mode not in ("dev", "opt")):
         raise Exception(f"Invalid mode: {mode}")
 
     def modefile_basename():
         if sys.platform == "darwin":
-            if mode == "dev":
+            if mode.startswith("dev"):
                 return "mac"
             else:
                 return "opt-mac"
         elif sys.platform == "win32":
-            if mode == "dev":
+            if mode.startswith("dev"):
                 return "win"
             else:
                 return "opt-win"
-        if mode == "dev":
+        if mode.startswith("dev"):
             return "dev"
         else:
             return "opt"

tests/e2e_util/test_bxl_check_dependencies_template.py

@@ -8,7 +8,7 @@
 import os
 
 from buck2.tests.e2e_util.asserts import expect_failure
-from buck2.tests.e2e_util.buck_workspace import buck_test
+from buck2.tests.e2e_util.buck_workspace import buck_test, get_mode_from_platform
 
 
 # This is just a template test case for `check_dependencies_test` to use buck2's e2e test framework.
@@ -28,8 +28,18 @@ async def test_check_dependencies_bxl(buck) -> None:
     allowlist = process_list_arg(is_allowlist=True)
     blocklist = process_list_arg(is_allowlist=False)
     expect_failure_msg = os.environ["EXPECT_FAILURE_MSG"]
+
+    fbcode_build_mode = os.environ.get("CHECK_DEPENDENCIES_TEST_FBCODE_BUILD_MODE")
+    if fbcode_build_mode:
+        mode_argfile = get_mode_from_platform(
+            fbcode_build_mode, skip_validation_i_know_what_im_doing=True
+        )
+    else:
+        mode_argfile = get_mode_from_platform()
+
     bxl_call = buck.bxl(
         os.environ["BXL_MAIN"],
+        mode_argfile,
         "--",
         "--target",
         os.environ["TARGET"],