LWSP parsing test

Author: zefir-git

test/Multipart.test.js

@@ -128,6 +128,37 @@ describe("Multipart", function () {
             expect(parsedMultipart).to.be.an.instanceof(Multipart);
             expect(parsedMultipart.parts).to.be.empty;
         });
+
+        it("should ignore linear whitespace after boundary delimiter", function () {
+            const string =
+                '--simple boundary    \r\n' +
+                'X-Foo: Bar\r\n' +
+                '\r\n' +
+                'The boundary delimiter of this part has trailing SP.\r\n' +
+                '--simple boundary\t\t\r\n' +
+                'X-Foo: Baz\r\n' +
+                '\r\n' +
+                'The boundary delimiter of this part has trailing tab.\r\n' +
+                '--simple boundary  \t\t\ \r\n' +
+                'X-Foo: Foo\r\n' +
+                '\r\n' +
+                'The boundary delimiter of this part has trailing SP and tab.\r\n' +
+                '--simple boundary--\r\r\n'
+
+            const parsedMultipart = Multipart.parseBody(new TextEncoder().encode(string), new TextEncoder().encode("simple boundary"));
+
+            expect(parsedMultipart).to.be.an.instanceof(Multipart);
+            expect(parsedMultipart.parts.length).to.equal(3);
+            const part1 = parsedMultipart.parts[0];
+            expect(part1.headers.get("x-foo")).to.equal("Bar");
+            expect(new TextDecoder().decode(part1.body)).to.equal("The boundary delimiter of this part has trailing SP.");
+            const part2 = parsedMultipart.parts[1];
+            expect(part2.headers.get("x-foo")).to.equal("Baz");
+            expect(new TextDecoder().decode(part2.body)).to.equal("The boundary delimiter of this part has trailing tab.");
+            const part3 = parsedMultipart.parts[2];
+            expect(part3.headers.get("x-foo")).to.equal("Foo");
+            expect(new TextDecoder().decode(part3.body)).to.equal("The boundary delimiter of this part has trailing SP and tab.");
+        });
     });
 
     describe("formData", function () {