summaryrefslogtreecommitdiffstats
path: root/js/src/tests/test262/built-ins/Math/clz32/int32bit.js
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
commit2aa4a82499d4becd2284cdb482213d541b8804dd (patch)
treeb80bf8bf13c3766139fbacc530efd0dd9d54394c /js/src/tests/test262/built-ins/Math/clz32/int32bit.js
parentInitial commit. (diff)
downloadfirefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz
firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.zip
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/built-ins/Math/clz32/int32bit.js')
-rw-r--r--js/src/tests/test262/built-ins/Math/clz32/int32bit.js49
1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Math/clz32/int32bit.js b/js/src/tests/test262/built-ins/Math/clz32/int32bit.js
new file mode 100644
index 0000000000..b1056a6e7f
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Math/clz32/int32bit.js
@@ -0,0 +1,49 @@
+// Copyright (C) 2016 The V8 Project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-math.clz32
+description: >
+ Catches the int32bit value in the ToUint32 operation
+info: |
+ Math.clz32 ( x )
+
+ 1. Let n be ToUint32(x).
+ 2. Let p be the number of leading zero bits in the 32-bit binary representation of n.
+ 3. Return p.
+
+ 7.1.6 ToUint32 ( argument )
+
+ [...]
+ 3. Let int be the mathematical value that is the same sign as number and whose
+ magnitude is floor(abs(number)).
+ 4. Let int32bit be int modulo 232.
+ 5. Return int32bit.
+ [...]
+---*/
+
+assert.sameValue(Math.clz32(4294967295), 0, "2**32-1");
+assert.sameValue(Math.clz32(4294967296), 32, "2**32");
+assert.sameValue(Math.clz32(4294967297), 31, "2**32+1");
+
+assert.sameValue(Math.clz32(65535), 16, "2**16-1");
+assert.sameValue(Math.clz32(65536), 15, "2**16");
+assert.sameValue(Math.clz32(65537), 15, "2**16+1");
+
+assert.sameValue(Math.clz32(255), 24, "2**8-1");
+assert.sameValue(Math.clz32(256), 23, "2**8");
+assert.sameValue(Math.clz32(257), 23, "2**8+1");
+
+assert.sameValue(Math.clz32(-4294967295), 31, "-(2**32-1)");
+assert.sameValue(Math.clz32(-4294967296), 32, "-(2**32)");
+assert.sameValue(Math.clz32(-4294967297), 0, "-(2**32+1)");
+
+assert.sameValue(Math.clz32(-65535), 0, "-(2**16-1)");
+assert.sameValue(Math.clz32(-65536), 0, "-(2**16)");
+assert.sameValue(Math.clz32(-65537), 0, "-(2**16+1)");
+
+assert.sameValue(Math.clz32(-255), 0, "-(2**8-1)");
+assert.sameValue(Math.clz32(-256), 0, "-(2**8)");
+assert.sameValue(Math.clz32(-257), 0, "-(2**8+1)");
+
+reportCompare(0, 0);