test: expected behavior when bigint and number have "same" value

test/built-ins/Map/bigint-number-same-value.js

@@ -0,0 +1,44 @@
+// Copyright (C) 2021 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-map.prototype.set
+description: >
+  Observing the expected behavior of keys when a BigInt and Number have
+  the same value.
+info: |
+  Map.prototype.set ( key , value )
+
+  ...
+  Let p be the Record {[[key]]: key, [[value]]: value}.
+  Append p as the last element of entries.
+  ...
+
+features: [BigInt]
+---*/
+
+const number = 9007199254740991;
+const bigint = 9007199254740991n;
+
+const m = new Map([
+  [number, number],
+  [bigint, bigint],
+]);
+
+assert.sameValue(m.size, 2);
+assert.sameValue(m.has(number), true);
+assert.sameValue(m.has(bigint), true);
+
+assert.sameValue(m.get(number), number);
+assert.sameValue(m.get(bigint), bigint);
+
+m.delete(number);
+assert.sameValue(m.size, 1);
+assert.sameValue(m.has(number), false);
+m.delete(bigint);
+assert.sameValue(m.size, 0);
+assert.sameValue(m.has(bigint), false);
+
+m.set(number, number);
+assert.sameValue(m.size, 1);
+m.set(bigint, bigint);
+assert.sameValue(m.size, 2);

test/built-ins/Set/bigint-number-same-value.js

@@ -0,0 +1,44 @@
+// Copyright (C) 2021 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-set.prototype.add
+description: >
+  Observing the expected behavior of keys when a BigInt and Number have
+  the same value.
+info: |
+  Set.prototype.add ( value )
+
+  ...
+  For each element e of entries, do
+    If e is not empty and SameValueZero(e, value) is true, then
+    Return S.
+  If value is -0, set value to +0.
+  Append value as the last element of entries.
+  ...
+
+features: [BigInt]
+---*/
+
+const number = 9007199254740991;
+const bigint = 9007199254740991n;
+
+const s = new Set([
+  number,
+  bigint,
+]);
+
+assert.sameValue(s.size, 2);
+assert.sameValue(s.has(number), true);
+assert.sameValue(s.has(bigint), true);
+
+s.delete(number);
+assert.sameValue(s.size, 1);
+assert.sameValue(s.has(number), false);
+s.delete(bigint);
+assert.sameValue(s.size, 0);
+assert.sameValue(s.has(bigint), false);
+
+s.add(number);
+assert.sameValue(s.size, 1);
+s.add(bigint);
+assert.sameValue(s.size, 2);

test/built-ins/Set/valid-values.js

@@ -10,7 +10,7 @@ info: |
   For each element e of entries, do
     If e is not empty and SameValueZero(e, value) is true, then
     Return S.
-  If value is -0𝔽, set value to +0𝔽.
+  If value is -0, set value to +0.
   Append value as the last element of entries.
   ...