1 files changed, 70 insertions, 64 deletions
diff --git a/Libraries/LibJS/Tests/builtins/BigInt/bigint-basic.js b/Libraries/LibJS/Tests/builtins/BigInt/bigint-basic.js
index 841b60008f..c32681792f 100644
--- a/Libraries/LibJS/Tests/builtins/BigInt/bigint-basic.js
+++ b/Libraries/LibJS/Tests/builtins/BigInt/bigint-basic.js
@@ -1,74 +1,80 @@
-load("test-common.js");
+describe("correct behavior", () => {
+  test("typeof bigint", () => {
+    expect(typeof 1n).toBe("bigint");
+  });
 
-try {
-  var bigint = 123n;
+  test("bigint string coersion", () => {
+    expect("" + 123n).toBe("123");
+  });
 
-  assert(typeof bigint === "bigint");
-  assert(-bigint === -123n);
-  assert("" + bigint === "123");
+  test("arithmetic operators", () => {
+    let bigint = 123n;
+    expect(-bigint).toBe(-123n);
 
-  assertThrowsError(
-    () => {
-      +bigint;
-    },
-    {
-      error: TypeError,
-      message: "Cannot convert BigInt to number",
-    }
-  );
+    expect(12n + 34n).toBe(46n);
+    expect(12n - 34n).toBe(-22n);
+    expect(8n * 12n).toBe(96n);
+    expect(123n / 10n).toBe(12n);
+    expect(2n ** 3n).toBe(8n);
+    expect(5n % 3n).toBe(2n);
+    expect(
+      45977665298704210987n +
+        (714320987142450987412098743217984576n / 4598741987421098765327980n) * 987498743n
+    ).toBe(199365500239020623962n);
+  });
 
-  assert(12n + 34n === 46n);
-  assert(12n - 34n === -22n);
-  assert(8n * 12n === 96n);
-  assert(123n / 10n === 12n);
-  assert(2n ** 3n === 8n);
-  assert(5n % 3n === 2n);
-  assert(
-    45977665298704210987n +
-      (714320987142450987412098743217984576n / 4598741987421098765327980n) * 987498743n ===
-      199365500239020623962n
-  );
+  test("bitwise operators", () => {
+    expect(12n & 5n).toBe(4n);
+    expect(1n | 2n).toBe(3n);
+    expect(5n ^ 3n).toBe(6n);
+    expect(~1n).toBe(-2n);
+  });
 
-  assert((12n & 5n) === 4n);
-  assert((1n | 2n) === 3n);
-  assert((5n ^ 3n) === 6n);
-  assert(~1n === -2n);
+  test("increment operators", () => {
+    let bigint = 1n;
+    expect(bigint++).toBe(1n);
+    expect(bigint).toBe(2n);
+    expect(bigint--).toBe(2n);
+    expect(bigint).toBe(1n);
+    expect(++bigint).toBe(2n);
+    expect(bigint).toBe(2n);
+    expect(--bigint).toBe(1n);
+    expect(bigint).toBe(1n);
+  });
 
-  bigint = 1n;
-  assert(bigint++ === 1n);
-  assert(bigint === 2n);
-  assert(bigint-- === 2n);
-  assert(bigint === 1n);
-  assert(++bigint === 2n);
-  assert(bigint === 2n);
-  assert(--bigint === 1n);
-  assert(bigint === 1n);
+  test("weak equality operators", () => {
+    expect(1n == 1n).toBeTrue();
+    expect(1n == 1).toBeTrue();
+    expect(1 == 1n).toBeTrue();
+    expect(1n == 1.23).toBeFalse();
+    expect(1.23 == 1n).toBeFalse();
 
-  assert((1n == 1n) === true);
-  assert((1n == 1) === true);
-  assert((1 == 1n) === true);
-  assert((1n == 1.23) === false);
-  assert((1.23 == 1n) === false);
+    expect(1n != 1n).toBeFalse();
+    expect(1n != 1).toBeFalse();
+    expect(1 != 1n).toBeFalse();
+    expect(1n != 1.23).toBeTrue();
+    expect(1.23 != 1n).toBeTrue();
+  });
 
-  assert((1n != 1n) === false);
-  assert((1n != 1) === false);
-  assert((1 != 1n) === false);
-  assert((1n != 1.23) === true);
-  assert((1.23 != 1n) === true);
+  test("strong equality operators", () => {
+    expect(1n === 1n).toBeTrue();
+    expect(1n === 1).toBeFalse();
+    expect(1 === 1n).toBeFalse();
+    expect(1n === 1.23).toBeFalse();
+    expect(1.23 === 1n).toBeFalse();
 
-  assert((1n === 1n) === true);
-  assert((1n === 1) == false);
-  assert((1 === 1n) === false);
-  assert((1n === 1.23) === false);
-  assert((1.23 === 1n) === false);
+    expect(1n !== 1n).toBeFalse();
+    expect(1n !== 1).toBeTrue();
+    expect(1 !== 1n).toBeTrue();
+    expect(1n !== 1.23).toBeTrue();
+    expect(1.23 !== 1n).toBeTrue();
+  });
+});
 
-  assert((1n !== 1n) === false);
-  assert((1n !== 1) === true);
-  assert((1 !== 1n) === true);
-  assert((1n !== 1.23) === true);
-  assert((1.23 !== 1n) === true);
-
-  console.log("PASS");
-} catch (e) {
-  console.log("FAIL: " + e);
-}
+describe("errors", () => {
+  test("conversion to number", () => {
+    expect(() => {
+      +123n;
+    }).toThrowWithMessage(TypeError, "Cannot convert BigInt to number");
+  });
+});