diff --git a/src/expression/Expression_test.go b/src/expression/Expression_test.go
index 1880aea..8ed0b79 100644
--- a/src/expression/Expression_test.go
+++ b/src/expression/Expression_test.go
@@ -72,6 +72,9 @@ func TestParse(t *testing.T) {
 		{"Unary minus 6", "a + -b", "(+ a (- b))"},
 		{"Unary minus 7", "-a + -b", "(+ (- a) (- b))"},
 
+		{"Assign bitwise operation", "a|=b", "(|= a b)"},
+		{"Assign bitwise operation 2", "a|=b<<c", "(|= a (<< b c))"},
+
 		{"Function calls", "a()", "(λ a)"},
 		{"Function calls 2", "a(1)", "(λ a 1)"},
 		{"Function calls 3", "a(1)+1", "(+ (λ a 1) 1)"},
@@ -116,10 +119,7 @@ func TestParse(t *testing.T) {
 		{"Dereferencing", "[a]", "(@ a)"},
 		{"Dereferencing 2", "[a+b]", "(@ (+ a b))"},
 		{"Dereferencing 3", "[a+b]=c", "(= (@ (+ a b)) c)"},
-		{"Dereferencing 3", "[a+b]=c+d", "(= (@ (+ a b)) (+ c d))"},
-
-		{"Assign bitwise OR", "a|=b", "(|= a b)"},
-		{"Assign bitwise OR 2", "a|=b<<c", "(|= a (<< b c))"},
+		{"Dereferencing 4", "[a+b]=c+d", "(= (@ (+ a b)) (+ c d))"},
 	}
 
 	for _, test := range tests {