1 files changed, 50 insertions, 0 deletions
diff --git a/v_windows/v/vlib/v/tests/lock_selector_test.v b/v_windows/v/vlib/v/tests/lock_selector_test.v
new file mode 100644
index 0000000..8076cfb
--- /dev/null
+++ b/v_windows/v/vlib/v/tests/lock_selector_test.v
@@ -0,0 +1,50 @@
+struct St {
+mut:
+	x f64
+}
+
+fn (s &St) get_f64() f64 {
+	return s.x
+}
+
+struct Gen {
+	s shared St
+}
+
+fn (g Gen) set_val() bool {
+	lock g.s {
+		g.s.x = 6.25
+		if g.s.x == 6.25 {
+			return true
+		}
+		g.s.x == 7.125
+	}
+	return false
+}
+
+fn (g &Gen) inc_val() {
+	shared q := St{
+		x: 1.0
+	}
+	shared v := St{
+		x: 0.25
+	}
+	lock q, g.s, v {
+		g.s.x += q.x
+		g.s.x += v.x
+	}
+}
+
+fn test_lock_selector_expression() {
+	g := Gen{
+		s: St{
+			x: 12.5
+		}
+	}
+	g.set_val()
+	g.inc_val()
+	a := rlock g.s {
+		g.s.get_f64()
+	}
+	assert a == 7.5
+}