Libraries: Move to Userland/Libraries/

1 files changed, 62 insertions, 0 deletions

diff --git a/Userland/Libraries/LibJS/Tests/operators/binary-bitwise-unsigned-right-shift.js b/Userland/Libraries/LibJS/Tests/operators/binary-bitwise-unsigned-right-shift.js
new file mode 100644
index 0000000000..4a950e18ef
--- /dev/null
+++ b/Userland/Libraries/LibJS/Tests/operators/binary-bitwise-unsigned-right-shift.js
@@ -0,0 +1,62 @@
+test("basic numeric shifting", () => {
+    expect(0 >>> 0).toBe(0);
+    expect(0 >>> 1).toBe(0);
+    expect(0 >>> 2).toBe(0);
+    expect(0 >>> 3).toBe(0);
+    expect(0 >>> 4).toBe(0);
+    expect(0 >>> 5).toBe(0);
+
+    expect(1 >>> 0).toBe(1);
+    expect(1 >>> 1).toBe(0);
+    expect(1 >>> 2).toBe(0);
+    expect(1 >>> 3).toBe(0);
+    expect(1 >>> 4).toBe(0);
+    expect(1 >>> 5).toBe(0);
+
+    expect(5 >>> 0).toBe(5);
+    expect(5 >>> 1).toBe(2);
+    expect(5 >>> 2).toBe(1);
+    expect(5 >>> 3).toBe(0);
+    expect(5 >>> 4).toBe(0);
+    expect(5 >>> 5).toBe(0);
+
+    expect(42 >>> 0).toBe(42);
+    expect(42 >>> 1).toBe(21);
+    expect(42 >>> 2).toBe(10);
+    expect(42 >>> 3).toBe(5);
+    expect(42 >>> 4).toBe(2);
+    expect(42 >>> 5).toBe(1);
+});
+
+test("numeric shifting with negative lhs values", () => {
+    expect(-1 >>> 0).toBe(4294967295);
+    expect(-1 >>> 1).toBe(2147483647);
+    expect(-1 >>> 2).toBe(1073741823);
+    expect(-1 >>> 3).toBe(536870911);
+    expect(-1 >>> 4).toBe(268435455);
+    expect(-1 >>> 5).toBe(134217727);
+
+    expect(-5 >>> 0).toBe(4294967291);
+    expect(-5 >>> 1).toBe(2147483645);
+    expect(-5 >>> 2).toBe(1073741822);
+    expect(-5 >>> 3).toBe(536870911);
+    expect(-5 >>> 4).toBe(268435455);
+    expect(-5 >>> 5).toBe(134217727);
+});
+
+test("shifting with non-numeric values", () => {
+    let x = -67;
+    let y = 4;
+
+    expect("-42" >>> 3).toBe(536870906);
+    expect(x >>> y).toBe(268435451);
+    expect(x >>> [[[[5]]]]).toBe(134217725);
+    expect(undefined >>> y).toBe(0);
+    expect("a" >>> "b").toBe(0);
+    expect(null >>> null).toBe(0);
+    expect(undefined >>> undefined).toBe(0);
+    expect(NaN >>> NaN).toBe(0);
+    expect(6 >>> NaN).toBe(6);
+    expect(Infinity >>> Infinity).toBe(0);
+    expect(-Infinity >>> Infinity).toBe(0);
+});