test(NODE-4873): Add new tests

mongodb · Jan 5, 2023 · a5411c9 · a5411c9
1 parent 04a3374
commit a5411c9
Showing 1 changed file with 30 additions and 1 deletion.
diff --git a/test/node/extended_json.test.ts b/test/node/extended_json.test.ts
@@ -219,7 +219,6 @@ describe('Extended JSON', function () {
     expect(parsed.a).to.equal(Number(dataView.getBigInt64(VALUE_OFFSET, true)));
   });
 
-
   it('serializes bigint values to numberLong in canonical mode', function () {
     const number = { a: 2n };
     const serialized = EJSON.stringify(number, { relaxed: false });
@@ -238,6 +237,36 @@ describe('Extended JSON', function () {
     expect(serialized).to.equal('{"a":-9007199254740992,"b":9007199254740994}');
   });
 
+  it('produces bigint strings that pass loose equality checks with native bigint values that are are 64 bits wide or less', function () {
+    const number = { a: 12345n };
+    const serialized = EJSON.stringify(number, { relaxed: false });
+    const parsed = JSON.parse(serialized);
+    // eslint-disable-next-line eqeqeq
+    expect(parsed.a.$numberLong == 12345n).true;
+  });
+
+  it('produces bigint strings that are equal to the strings generated when using BigInt.toString when the bigint values used are 64 bits wide or less', function () {
+    const number = { a: 12345n };
+    const serialized = EJSON.stringify(number, { relaxed: false });
+    const parsed = JSON.parse(serialized);
+    expect(parsed.a.$numberLong).to.equal(12345n.toString());
+  });
+
+  it('produces bigint strings that fail loose equality checks with native bigint values that are more than 64 bits wide', function () {
+    const number = { a: 0x1234_5678_1234_5678_9999n };
+    const serialized = EJSON.stringify(number, { relaxed: false });
+    const parsed = JSON.parse(serialized);
+    // eslint-disable-next-line eqeqeq
+    expect(parsed.a.$numberLong == 0x1234_5678_1234_5678_9999n).false;
+  });
+
+  it('produces bigint strings that are not equal to the strings generated when using BigInt.toString when the bigint values used are more than 64 bits wide', function () {
+    const number = { a: 0x1234_5678_1234_5678_9999n };
+    const serialized = EJSON.stringify(number, { relaxed: false });
+    const parsed = JSON.parse(serialized);
+    expect(parsed.a.$numberLong).to.not.equal(0x1234_5678_1234_5678_9999n.toString());
+  });
+
   it('should correctly parse null values', function () {
     expect(EJSON.parse('null')).to.be.null;
     expect(EJSON.parse('[null]')[0]).to.be.null;