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LibJS: Implement bitwise right shift operator (>>)

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Linus Groh 2020-04-23 13:45:19 +01:00 • committed by Andreas Kling
parent f0e7404480
commit 502d1f5165
5 changed files with 88 additions and 1 deletions
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63
Libraries/LibJS/Tests/binary-bitwise-right-shift.js Normal file
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@ -0,0 +1,63 @@
load("test-common.js");
try {
assert((0 >> 0) === 0);
assert((0 >> 1) === 0);
assert((0 >> 2) === 0);
assert((0 >> 3) === 0);
assert((0 >> 4) === 0);
assert((0 >> 5) === 0);
assert((1 >> 0) === 1);
assert((1 >> 1) === 0);
assert((1 >> 2) === 0);
assert((1 >> 3) === 0);
assert((1 >> 4) === 0);
assert((1 >> 5) === 0);
assert((5 >> 0) === 5);
assert((5 >> 1) === 2);
assert((5 >> 2) === 1);
assert((5 >> 3) === 0);
assert((5 >> 4) === 0);
assert((5 >> 5) === 0);
assert((42 >> 0) === 42);
assert((42 >> 1) === 21);
assert((42 >> 2) === 10);
assert((42 >> 3) === 5);
assert((42 >> 4) === 2);
assert((42 >> 5) === 1);
assert((-1 >> 0) === -1);
assert((-1 >> 1) === -1);
assert((-1 >> 2) === -1);
assert((-1 >> 3) === -1);
assert((-1 >> 4) === -1);
assert((-1 >> 5) === -1);
assert((-5 >> 0) === -5);
assert((-5 >> 1) === -3);
assert((-5 >> 2) === -2);
assert((-5 >> 3) === -1);
assert((-5 >> 4) === -1);
assert((-5 >> 5) === -1);
var x = 67;
var y = 4;
assert(("42" >> 3) === 5);
assert((x >> y) === 4);
assert((x >> [[[[5]]]]) === 2);
assert((undefined >> y) === 0);
assert(("a" >> "b") === 0);
assert((null >> null) === 0);
assert((undefined >> undefined) === 0);
assert((NaN >> NaN) === 0);
assert((6 >> NaN) === 6);
assert((Infinity >> Infinity) === 0);
assert((-Infinity >> Infinity) === 0);
console.log("PASS");
} catch (e) {
console.log("FAIL: " + e);
}