From 4de46562ca8fd5d75c8f26449aa235a651e0c435 Mon Sep 17 00:00:00 2001
From: David Wendt <dcrkid@yahoo.com>
Date: Sun, 28 Aug 2022 15:31:16 -0400
Subject: [PATCH] tests: Add a test for class singleton properties.

---
 tests/tests/regression_tests.rs               |   1 +
 tests/tests/swfs/avm2/class_singleton/Test.as |  32 ++++++++++++++++++
 .../swfs/avm2/class_singleton/output.txt      |  18 ++++++++++
 .../tests/swfs/avm2/class_singleton/test.fla  | Bin 0 -> 4031 bytes
 .../tests/swfs/avm2/class_singleton/test.swf  | Bin 0 -> 1236 bytes
 5 files changed, 51 insertions(+)
 create mode 100644 tests/tests/swfs/avm2/class_singleton/Test.as
 create mode 100644 tests/tests/swfs/avm2/class_singleton/output.txt
 create mode 100644 tests/tests/swfs/avm2/class_singleton/test.fla
 create mode 100644 tests/tests/swfs/avm2/class_singleton/test.swf

diff --git a/tests/tests/regression_tests.rs b/tests/tests/regression_tests.rs
index d45b8849a..e9d38555e 100644
--- a/tests/tests/regression_tests.rs
+++ b/tests/tests/regression_tests.rs
@@ -204,6 +204,7 @@ swf_tests! {
     (as3_class_enumeration, "avm2/class_enumeration", 1),
     (as3_class_is, "avm2/class_is", 1),
     (as3_class_methods, "avm2/class_methods", 1),
+    (as3_class_singleton, "avm2/class_singleton", 1),
     (as3_class_supercalls_mismatched, "avm2/class_supercalls_mismatched", 1),
     (as3_class_to_locale_string, "avm2/class_to_locale_string", 1),
     (as3_class_to_string, "avm2/class_to_string", 1),
diff --git a/tests/tests/swfs/avm2/class_singleton/Test.as b/tests/tests/swfs/avm2/class_singleton/Test.as
new file mode 100644
index 000000000..02929ed75
--- /dev/null
+++ b/tests/tests/swfs/avm2/class_singleton/Test.as
@@ -0,0 +1,32 @@
+package {
+	public class Test {}
+}
+
+class ES4Class {
+	public static var INSTANCE: ES4Class = new ES4Class();
+	
+	public static var NULL: ES4Class = null;
+	
+	public static var UNDEFINED: ES4Class = undefined;
+}
+
+trace("///ES4Class.INSTANCE === null");
+trace(ES4Class.INSTANCE === null);
+trace("///ES4Class.INSTANCE === undefined");
+trace(ES4Class.INSTANCE === undefined);
+trace("///ES4Class.INSTANCE is ES4Class");
+trace(ES4Class.INSTANCE is ES4Class);
+
+trace("///ES4Class.NULL === null");
+trace(ES4Class.NULL === null);
+trace("///ES4Class.NULL === undefined");
+trace(ES4Class.NULL === undefined);
+trace("///ES4Class.NULL is ES4Class");
+trace(ES4Class.NULL is ES4Class);
+
+trace("///ES4Class.UNDEFINED === null");
+trace(ES4Class.UNDEFINED === null);
+trace("///ES4Class.UNDEFINED === undefined");
+trace(ES4Class.UNDEFINED === undefined);
+trace("///ES4Class.UNDEFINED is ES4Class");
+trace(ES4Class.UNDEFINED is ES4Class);
\ No newline at end of file
diff --git a/tests/tests/swfs/avm2/class_singleton/output.txt b/tests/tests/swfs/avm2/class_singleton/output.txt
new file mode 100644
index 000000000..c5c6da45a
--- /dev/null
+++ b/tests/tests/swfs/avm2/class_singleton/output.txt
@@ -0,0 +1,18 @@
+///ES4Class.INSTANCE === null
+false
+///ES4Class.INSTANCE === undefined
+false
+///ES4Class.INSTANCE is ES4Class
+true
+///ES4Class.NULL === null
+true
+///ES4Class.NULL === undefined
+false
+///ES4Class.NULL is ES4Class
+false
+///ES4Class.UNDEFINED === null
+true
+///ES4Class.UNDEFINED === undefined
+false
+///ES4Class.UNDEFINED is ES4Class
+false
diff --git a/tests/tests/swfs/avm2/class_singleton/test.fla b/tests/tests/swfs/avm2/class_singleton/test.fla
new file mode 100644
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diff --git a/tests/tests/swfs/avm2/class_singleton/test.swf b/tests/tests/swfs/avm2/class_singleton/test.swf
new file mode 100644
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