Add unit tests

boa-dev · Dec 31, 2020 · d3d4acb · d3d4acb
1 parent 430411f
commit d3d4acb
Show file tree

Hide file tree

Showing 2 changed files with 28 additions and 0 deletions.
diff --git a/boa/src/syntax/ast/node/operator/tests.rs b/boa/src/syntax/ast/node/operator/tests.rs
@@ -60,3 +60,22 @@ fn instanceofoperator_rhs_not_callable() {
         "\"TypeError: right-hand side of 'instanceof' is not callable\""
     );
 }
+
+#[test]
+fn logical_nullish_assignment() {
+    let scenario = r#"
+        let a = undefined;
+        a ??= 10;
+        a;
+        "#;
+
+    assert_eq!(&exec(scenario), "10");
+
+    let scenario = r#"
+        let a = 20;
+        a ??= 10;
+        a;
+        "#;
+
+    assert_eq!(&exec(scenario), "20");
+}
diff --git a/boa/src/syntax/parser/expression/tests.rs b/boa/src/syntax/parser/expression/tests.rs
@@ -191,6 +191,15 @@ fn check_assign_operations() {
         )
         .into()],
     );
+    check_parser(
+        "a ??= b",
+        vec![BinOp::new(
+            AssignOp::Coalesce,
+            Identifier::from("a"),
+            Identifier::from("b"),
+        )
+        .into()],
+    );
 }
 
 #[test]