From e2dda4896b5c3ba62c56280d1924db654a44257c Mon Sep 17 00:00:00 2001
From: Karl Seguin <k@openmymind.io>
Date: Wed, 5 Feb 2025 18:33:41 +0800
Subject: [PATCH 1/2] On MacOS, tests hangs.

Seems that you can't cancel on MacOS:
https://github.com/lightpanda-io/tigerbeetle-io/blob/main/io/darwin.zig#L580
---
 src/loop.zig           |  7 +++++++
 src/tests/cbk_test.zig | 28 +++++++++++++++-------------
 2 files changed, 22 insertions(+), 13 deletions(-)

diff --git a/src/loop.zig b/src/loop.zig
index c9d0490..77a3524 100644
--- a/src/loop.zig
+++ b/src/loop.zig
@@ -291,4 +291,11 @@ pub const SingleThreaded = struct {
             report("recv done, remaining events: {d}", .{old_events_nb - 1});
         }
     }
+
+    pub fn canCancel() bool {
+        return switch (@import("builtin").target.os.tag) {
+            .macos, .tvos, .watchos, .ios => false,
+            else => true,
+        };
+    }
 };
diff --git a/src/tests/cbk_test.zig b/src/tests/cbk_test.zig
index 83d685f..9ba9c5b 100644
--- a/src/tests/cbk_test.zig
+++ b/src/tests/cbk_test.zig
@@ -260,17 +260,19 @@ pub fn exec(
     };
     try tests.checkCases(js_env, &cases_cbk_setter_arg);
 
-    // cancel cbk
-    var cases_cbk_cancel = [_]tests.Case{
-        .{
-            .src =
-            \\let vv = 0;
-            \\const id = window.cbkAsync(() => {vv += 1}, 100);
-            \\window.cancel(id);
-            ,
-            .ex = "undefined",
-        },
-        .{ .src = "vv", .ex = "0" },
-    };
-    try tests.checkCases(js_env, &cases_cbk_cancel);
+    if (jsruntime.Loop.canCancel()) {
+        // cancel cbk
+        var cases_cbk_cancel = [_]tests.Case{
+            .{
+                .src =
+                \\let vv = 0;
+                \\const id = window.cbkAsync(() => {vv += 1}, 100);
+                \\window.cancel(id);
+                ,
+                .ex = "undefined",
+            },
+            .{ .src = "vv", .ex = "0" },
+        };
+        try tests.checkCases(js_env, &cases_cbk_cancel);
+    }
 }

From 06ab6b3aa922f86feb671424104ee6273c0e109e Mon Sep 17 00:00:00 2001
From: Karl Seguin <k@openmymind.io>
Date: Thu, 6 Feb 2025 07:58:28 +0800
Subject: [PATCH 2/2] Move canCancel to test_utils

Rename canCancel to isCancelAvailable which seems more descriptive.
---
 src/loop.zig             | 7 -------
 src/tests/cbk_test.zig   | 2 +-
 src/tests/test_utils.zig | 7 +++++++
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/loop.zig b/src/loop.zig
index 77a3524..c9d0490 100644
--- a/src/loop.zig
+++ b/src/loop.zig
@@ -291,11 +291,4 @@ pub const SingleThreaded = struct {
             report("recv done, remaining events: {d}", .{old_events_nb - 1});
         }
     }
-
-    pub fn canCancel() bool {
-        return switch (@import("builtin").target.os.tag) {
-            .macos, .tvos, .watchos, .ios => false,
-            else => true,
-        };
-    }
 };
diff --git a/src/tests/cbk_test.zig b/src/tests/cbk_test.zig
index 9ba9c5b..443e84c 100644
--- a/src/tests/cbk_test.zig
+++ b/src/tests/cbk_test.zig
@@ -260,7 +260,7 @@ pub fn exec(
     };
     try tests.checkCases(js_env, &cases_cbk_setter_arg);
 
-    if (jsruntime.Loop.canCancel()) {
+    if (tests.isCancelAvailable()) {
         // cancel cbk
         var cases_cbk_cancel = [_]tests.Case{
             .{
diff --git a/src/tests/test_utils.zig b/src/tests/test_utils.zig
index eb3601c..3e5aacb 100644
--- a/src/tests/test_utils.zig
+++ b/src/tests/test_utils.zig
@@ -144,6 +144,13 @@ pub fn checkCasesAlloc(allocator: std.mem.Allocator, js_env: *public.Env, cases:
     }
 }
 
+pub fn isCancelAvailable() bool {
+    return switch (@import("builtin").target.os.tag) {
+        .macos, .tvos, .watchos, .ios => false,
+        else => true,
+    };
+}
+
 pub const Case = struct {
     src: []const u8,
     ex: []const u8,