docs: Add link to original port of test.

scottmarchant · scottmarchant · commit a4f7aa25b5d1 · 2025-09-24T17:04:23.000-06:00
diff --git a/Tests/DispatchAsyncTests/DispatchGroupTests.swift b/Tests/DispatchAsyncTests/DispatchGroupTests.swift
@@ -133,6 +133,9 @@ struct DispatchGroupTests {
     }
 
     /// Swift port of libdispatch/tests/dispatch_group.c
+    ///
+    /// See https://github.com/swiftlang/swift-corelibs-libdispatch/blob/686475721aca13d98d2eab3a0c439403d33b6e2d/tests/dispatch_group.c
+    ///
     /// The original C test stresses `dispatch_group_wait` by enqueuing a bunch of
     /// math-heavy blocks on a global queue, then waiting for them to finish with a
     /// timeout.  It also verifies that `notify` is invoked exactly once.

Original file line number	Diff line number	Diff line change
`@@ -133,6 +133,9 @@ struct DispatchGroupTests {`
`133`	`133`	`}`
`134`	`134`
`135`	`135`	`/// Swift port of libdispatch/tests/dispatch_group.c`
	`136`	`+ ///`
	`137`	`+ /// See https://github.com/swiftlang/swift-corelibs-libdispatch/blob/686475721aca13d98d2eab3a0c439403d33b6e2d/tests/dispatch_group.c`
	`138`	`+ ///`
`136`	`139`	/// The original C test stresses `dispatch_group_wait` by enqueuing a bunch of
`137`	`140`	`/// math-heavy blocks on a global queue, then waiting for them to finish with a`
`138`	`141`	/// timeout. It also verifies that `notify` is invoked exactly once.