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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /js/src/jit-test/tests/Set/symbols.js
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/Set/symbols.js')
-rw-r--r--js/src/jit-test/tests/Set/symbols.js26
1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/Set/symbols.js b/js/src/jit-test/tests/Set/symbols.js
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+++ b/js/src/jit-test/tests/Set/symbols.js
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+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/ */
+
+load(libdir + "asserts.js");
+
+var s = new Set;
+
+// Symbols can be stored in Sets.
+var sym = Symbol();
+s.add(sym);
+assertEq(s.has(sym), true);
+assertEq(s.has(Symbol()), false);
+assertEq([...s][0], sym);
+s.add(sym);
+assertEq(s.has(sym), true);
+assertEq(s.size, 1);
+s.delete(sym);
+assertEq(s.has(sym), false);
+assertEq(s.size, 0);
+
+// Symbols returned by Symbol.for() can be in Sets.
+var str = "how much wood would a woodchuck chuck if a woodchuck could chuck wood";
+var s2 = "how much wood would a woodchuck chuck if could";
+var arr = str.split(" ").map(Symbol.for);
+s = new Set(arr);
+assertDeepEq([...s], s2.split(" ").map(Symbol.for));