import { gc } from "bun";
import { describe, it, expect } from "bun:test";
it("buffer", () => {
var buf = new Buffer(20);
gc();
// if this fails or infinitely loops, it means there is a memory issue with the JSC::Structure object
expect(Object.keys(buf).length > 0).toBe(true);
gc();
expect(buf.write("hello world ")).toBe(12);
expect(buf.write("hello world ", "utf8")).toBe(12);
gc();
expect(buf.toString("utf8", 0, "hello world ".length)).toBe("hello world ");
gc();
expect(buf.toString("base64url", 0, "hello world ".length)).toBe(
btoa("hello world ")
);
gc();
expect(buf instanceof Uint8Array).toBe(true);
gc();
expect(buf instanceof Buffer).toBe(true);
gc();
expect(buf.slice() instanceof Uint8Array).toBe(true);
gc();
expect(buf.slice(0, 1) instanceof Buffer).toBe(true);
gc();
expect(buf.slice(0, 1) instanceof Uint8Array).toBe(true);
gc();
expect(buf.slice(0, 1) instanceof Buffer).toBe(true);
gc();
});
it("Buffer", () => {
var inputs = [
"hello world",
"hello world".repeat(100),
`π Get Emoji β All Emojis to βοΈ Copy and π Paste π`,
];
var good = inputs.map((a) => new TextEncoder().encode(a));
for (let i = 0; i < inputs.length; i++) {
var input = inputs[i];
expect(new Buffer(input).toString("utf8")).toBe(inputs[i]);
gc();
expect(Array.from(new Buffer(input)).join(",")).toBe(good[i].join(","));
gc();
expect(Buffer.byteLength(input)).toBe(good[i].length);
gc();
expect(Buffer.from(input).byteLength).toBe(Buffer.byteLength(input));
}
});
it("Buffer.byteLength", () => {
expect(Buffer.byteLength("ππππππ
ππ€£βΊοΈπππ")).toBe(
new TextEncoder().encode("ππππππ
ππ€£βΊοΈπππ").byteLength
);
});
it("Buffer.isBuffer", () => {
expect(Buffer.isBuffer(new Buffer(1))).toBe(true);
gc();
expect(Buffer.isBuffer(new Buffer(0))).toBe(true);
gc();
expect(Buffer.isBuffer(new Uint8Array(0))).toBe(false);
gc();
expect(Buffer.isBuffer(new Uint8Array(1))).toBe(false);
gc();
var a = new Uint8Array(1);
gc();
expect(Buffer.isBuffer(a)).toBe(false);
gc();
Buffer.toBuffer(a);
gc();
expect(Buffer.isBuffer(a)).toBe(true);
gc();
});
it("Buffer.toBuffer throws", () => {
const checks = [
[],
{},
"foo",
new Uint16Array(),
new DataView(new Uint8Array(14).buffer),
];
for (let i = 0; i < checks.length; i++) {
try {
Buffer.toBuffer(checks[i]);
expect(false).toBe(true);
} catch (exception) {
expect(exception.message).toBe("Expected Uint8Array");
}
}
expect(true).toBe(true);
});
it("Buffer.toBuffer works", () => {
var array = new Uint8Array(20);
expect(array instanceof Buffer).toBe(false);
var buf = Buffer.toBuffer(array);
expect(array instanceof Buffer).toBe(true);
// if this fails or infinitely loops, it means there is a memory issue with the JSC::Structure object
expect(Object.keys(buf).length > 0).toBe(true);
expect(buf.write("hello world ")).toBe(12);
gc();
expect(buf.toString("utf8", 0, "hello world ".length)).toBe("hello world ");
gc();
expect(buf.toString("base64url", 0, "hello world ".length)).toBe(
btoa("hello world ")
);
gc();
expect(buf instanceof Uint8Array).toBe(true);
expect(buf instanceof Buffer).toBe(true);
expect(buf.slice() instanceof Uint8Array).toBe(true);
expect(buf.slice(0, 1) instanceof Buffer).toBe(true);
expect(buf.slice(0, 1) instanceof Uint8Array).toBe(true);
expect(buf.slice(0, 1) instanceof Buffer).toBe(true);
expect(new Buffer(buf) instanceof Buffer).toBe(true);
expect(new Buffer(buf.buffer) instanceof Buffer).toBe(true);
});
it("writeInt", () => {
var buf = new Buffer(1024);
var data = new DataView(buf.buffer);
buf.writeInt32BE(100);
expect(data.getInt32(0, false)).toBe(100);
buf.writeInt32BE(100);
expect(data.getInt32(0, false)).toBe(100);
var childBuf = buf.subarray(0, 4);
expect(data.getInt32(0, false)).toBe(100);
expect(childBuf.readInt32BE(0, false)).toBe(100);
});
it("Buffer.from", () => {
expect(Buffer.from("hello world").toString("utf8")).toBe("hello world");
expect(Buffer.from("hello world", "ascii").toString("utf8")).toBe(
"hello world"
);
expect(Buffer.from("hello world", "latin1").toString("utf8")).toBe(
"hello world"
);
gc();
expect(Buffer.from([254]).join(",")).toBe("254");
expect(Buffer.from(123).join(",")).toBe(Uint8Array.from(123).join(","));
expect(Buffer.from({ length: 124 }).join(",")).toBe(
Uint8Array.from({ length: 124 }).join(",")
);
expect(Buffer.from(new ArrayBuffer(1024), 0, 512).join(",")).toBe(
new Uint8Array(512).join(",")
);
expect(Buffer.from(new Buffer(new ArrayBuffer(1024), 0, 512)).join(",")).toBe(
new Uint8Array(512).join(",")
);
gc();
});
it("Buffer.equals", () => {
var a = new Uint8Array(10);
a[2] = 1;
var b = new Uint8Array(10);
b[2] = 1;
Buffer.toBuffer(a);
Buffer.toBuffer(b);
expect(a.equals(b)).toBe(true);
b[2] = 0;
expect(a.equals(b)).toBe(false);
});
it("Buffer.compare", () => {
var a = new Uint8Array(10);
a[2] = 1;
var b = new Uint8Array(10);
b[2] = 1;
Buffer.toBuffer(a);
Buffer.toBuffer(b);
expect(a.compare(b)).toBe(0);
b[2] = 0;
expect(a.compare(b)).toBe(1);
expect(b.compare(a)).toBe(-1);
});
it("Buffer.copy", () => {
var array1 = new Uint8Array(128);
array1.fill(100);
Buffer.toBuffer(array1);
var array2 = new Uint8Array(128);
array2.fill(200);
Buffer.toBuffer(array2);
var array3 = new Uint8Array(128);
Buffer.toBuffer(array3);
gc();
expect(array1.copy(array2)).toBe(128);
expect(array1.join("")).toBe(array2.join(""));
});
it("Buffer.concat", () => {
var array1 = new Uint8Array(128);
array1.fill(100);
var array2 = new Uint8Array(128);
array2.fill(200);
var array3 = new Uint8Array(128);
array3.fill(300);
gc();
expect(Buffer.concat([array1, array2, array3]).join("")).toBe(
array1.join("") + array2.join("") + array3.join("")
);
expect(Buffer.concat([array1, array2, array3], 222).length).toBe(222);
expect(
Buffer.concat([array1, array2, array3], 222).subarray(0, 128).join("")
).toBe("100".repeat(128));
expect(
Buffer.concat([array1, array2, array3], 222).subarray(129, 222).join("")
).toBe("200".repeat(222 - 129));
});
it("read", () => {
var buf = new Buffer(1024);
var data = new DataView(buf.buffer);
function reset() {
new Uint8Array(buf.buffer).fill(0);
}
data.setBigInt64(0, BigInt(1000), false);
expect(buf.readBigInt64BE(0)).toBe(BigInt(1000));
reset();
data.setBigInt64(0, BigInt(1000), false);
expect(buf.readBigInt64LE(0)).toBe(BigInt(1000));
reset();
data.setBigUint64(0, BigInt(1000), false);
expect(buf.readBigUInt64BE(0)).toBe(BigInt(1000));
reset();
data.setBigUint64(0, BigInt(1000), false);
expect(buf.readBigUInt64LE(0)).toBe(BigInt(1000));
reset();
data.setFloat64(0, 1000, false);
expect(buf.readDoubleBE(0)).toBe(1000);
reset();
data.setFloat64(0, 1000, true);
expect(buf.readDoubleLE(0)).toBe(1000);
reset();
data.setFloat32(0, 1000, false);
expect(buf.readFloatBE(0)).toBe(1000);
reset();
data.setFloat32(0, 1000, true);
expect(buf.readFloatLE(0)).toBe(1000);
reset();
data.setInt16(0, 1000, false);
expect(buf.readInt16BE(0)).toBe(1000);
reset();
data.setInt16(0, 1000, true);
expect(buf.readInt16LE(0)).toBe(1000);
reset();
data.setInt32(0, 1000, false);
expect(buf.readInt32BE(0)).toBe(1000);
reset();
data.setInt32(0, 1000, true);
expect(buf.readInt32LE(0)).toBe(1000);
reset();
data.setInt8(0, 100, false);
expect(buf.readInt8(0)).toBe(100);
reset();
data.setUint16(0, 1000, false);
expect(buf.readUInt16BE(0)).toBe(1000);
reset();
data.setUint16(0, 1000, true);
expect(buf.readUInt16LE(0)).toBe(1000);
reset();
data.setUint32(0, 1000, false);
expect(buf.readUInt32BE(0)).toBe(1000);
reset();
data.setUint32(0, 1000, true);
expect(buf.readUInt32LE(0)).toBe(1000);
reset();
data.setUint8(0, 255, false);
expect(buf.readUInt8(0)).toBe(255);
reset();
data.setUint8(0, 255, false);
expect(buf.readUInt8(0)).toBe(255);
reset();
});
tion value='jarred/jsc'>jarred/jsc
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Jarred Sumner