1 files changed, 67 insertions, 0 deletions
diff --git a/indra/llcommon/tests/llcond_test.cpp b/indra/llcommon/tests/llcond_test.cpp
new file mode 100644
index 0000000000..478149eacf
--- /dev/null
+++ b/indra/llcommon/tests/llcond_test.cpp
@@ -0,0 +1,67 @@
+/**
+ * @file   llcond_test.cpp
+ * @author Nat Goodspeed
+ * @date   2019-07-18
+ * @brief  Test for llcond.
+ * 
+ * $LicenseInfo:firstyear=2019&license=viewerlgpl$
+ * Copyright (c) 2019, Linden Research, Inc.
+ * $/LicenseInfo$
+ */
+
+// Precompiled header
+#include "linden_common.h"
+// associated header
+#include "llcond.h"
+// STL headers
+// std headers
+// external library headers
+// other Linden headers
+#include "../test/lltut.h"
+#include "llcoros.h"
+
+/*****************************************************************************
+*   TUT
+*****************************************************************************/
+namespace tut
+{
+    struct llcond_data
+    {
+        LLScalarCond<int> cond{0};
+    };
+    typedef test_group<llcond_data> llcond_group;
+    typedef llcond_group::object object;
+    llcond_group llcondgrp("llcond");
+
+    template<> template<>
+    void object::test<1>()
+    {
+        set_test_name("Immediate gratification");
+        cond.set_one(1);
+        ensure("wait_for_equal() failed", 
+               cond.wait_for_equal(F32Milliseconds(1), 1));
+        ensure("wait_for_unequal() should have failed",
+               ! cond.wait_for_unequal(F32Milliseconds(1), 1));
+    }
+
+    template<> template<>
+    void object::test<2>()
+    {
+        set_test_name("Simple two-coroutine test");
+        LLCoros::instance().launch(
+            "test<2>",
+            [this]()
+            {
+                // Lambda immediately entered -- control comes here first.
+                ensure_equals(cond.get(), 0);
+                cond.set_all(1);
+                cond.wait_equal(2);
+                ensure_equals(cond.get(), 2);
+                cond.set_all(3);
+            });
+        // Main coroutine is resumed only when the lambda waits.
+        ensure_equals(cond.get(), 1);
+        cond.set_all(2);
+        cond.wait_equal(3);
+    }
+} // namespace tut