CoastalCommitsPastes/server/node_modules/sqlite3/test/unicode.test.js
2022-03-06 16:46:59 -08:00

114 lines
3.1 KiB
JavaScript

var sqlite3 = require('..');
var assert = require('assert');
describe('unicode', function() {
var first_values = [],
trailing_values = [],
chars = [],
subranges = new Array(2),
len = subranges.length,
db,
i;
before(function(done) { db = new sqlite3.Database(':memory:', done); });
for (i = 0x20; i < 0x80; i++) {
first_values.push(i);
}
for (i = 0xc2; i < 0xf0; i++) {
first_values.push(i);
}
for (i = 0x80; i < 0xc0; i++) {
trailing_values.push(i);
}
for (i = 0; i < len; i++) {
subranges[i] = [];
}
for (i = 0xa0; i < 0xc0; i++) {
subranges[0].push(i);
}
for (i = 0x80; i < 0xa0; i++) {
subranges[1].push(i);
}
function random_choice(arr) {
return arr[Math.random() * arr.length | 0];
}
function random_utf8() {
var first = random_choice(first_values);
if (first < 0x80) {
return String.fromCharCode(first);
} else if (first < 0xe0) {
return String.fromCharCode((first & 0x1f) << 0x6 | random_choice(trailing_values) & 0x3f);
} else if (first == 0xe0) {
return String.fromCharCode(((first & 0xf) << 0xc) | ((random_choice(subranges[0]) & 0x3f) << 6) | random_choice(trailing_values) & 0x3f);
} else if (first == 0xed) {
return String.fromCharCode(((first & 0xf) << 0xc) | ((random_choice(subranges[1]) & 0x3f) << 6) | random_choice(trailing_values) & 0x3f);
} else if (first < 0xf0) {
return String.fromCharCode(((first & 0xf) << 0xc) | ((random_choice(trailing_values) & 0x3f) << 6) | random_choice(trailing_values) & 0x3f);
}
}
function randomString() {
var str = '',
i;
for (i = Math.random() * 300; i > 0; i--) {
str += random_utf8();
}
return str;
}
// Generate random data.
var data = [];
var length = Math.floor(Math.random() * 1000) + 200;
for (var i = 0; i < length; i++) {
data.push(randomString());
}
var inserted = 0;
var retrieved = 0;
it('should create the table', function(done) {
db.run("CREATE TABLE foo (id int, txt text)", done);
});
it('should insert all values', function(done) {
var stmt = db.prepare("INSERT INTO foo VALUES(?, ?)");
for (var i = 0; i < data.length; i++) {
stmt.run(i, data[i], function(err) {
if (err) throw err;
inserted++;
});
}
stmt.finalize(done);
});
it('should retrieve all values', function(done) {
db.all("SELECT txt FROM foo ORDER BY id", function(err, rows) {
if (err) throw err;
for (var i = 0; i < rows.length; i++) {
assert.equal(rows[i].txt, data[i]);
retrieved++;
}
done();
});
});
it('should have inserted and retrieved the correct amount', function() {
assert.equal(inserted, length);
assert.equal(retrieved, length);
});
after(function(done) { db.close(done); });
});