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test.js
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test.js
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var fs = require('fs'), assert = require('assert'), vm = require('vm');
var cptable, sbcs;
var Buffer_from = function(){};
if(typeof Buffer !== 'undefined') {
var nbfs = !Buffer.from;
if(!nbfs) try { Buffer.from("foo", "utf8"); } catch(e) { nbfs = true; }
Buffer_from = nbfs ? function(buf, enc) { return (enc) ? new Buffer(buf, enc) : new Buffer(buf); } : Buffer.from.bind(Buffer);
}
describe('source', function() {
it('should load node', function() { cptable = require('./'); });
it('should load sbcs', function() { sbcs = require('./sbcs'); });
it('should load excel', function() { excel = require('./cpexcel'); });
it('should process bits', function() {
var files = fs.readdirSync('bits').filter(function(x){return x.substr(-3)==".js";});
files.forEach(function(x) {
vm.runInThisContext(fs.readFileSync('./bits/' + x));
});
});
});
describe('README', function() {
var readme = function() {
var unicode_cp10000_255 = cptable[10000].dec[255]; // ˇ
assert.equal(unicode_cp10000_255, "ˇ");
var cp10000_711 = cptable[10000].enc[String.fromCharCode(711)]; // 255
assert.equal(cp10000_711, 255);
var b1 = [0xbb,0xe3,0xd7,0xdc];
var s1 = b1.map(function(x) { return String.fromCharCode(x); }).join("");
var 汇总 = cptable.utils.decode(936, b1);
var buf = cptable.utils.encode(936, 汇总);
assert.equal(汇总,"汇总");
assert.equal(buf.length, 4);
for(var i = 0; i != 4; ++i) assert.equal(b1[i], buf[i]);
var b2 = [0xf0,0x9f,0x8d,0xa3];
var sushi= cptable.utils.decode(65001, b2);
var sbuf = cptable.utils.encode(65001, sushi);
assert.equal(sushi,"🍣");
assert.equal(sbuf.length, 4);
for(var i = 0; i != 4; ++i) assert.equal(b2[i], sbuf[i]);
};
it('should be correct', function() {
cptable.utils.cache.encache();
readme();
cptable.utils.cache.decache();
readme();
});
});
describe('consistency', function() {
cptable = require('./');
U = cptable.utils;
var chk = function(cptable, cacheit) { return function(x) {
it('should consistently process CP ' + x, function() {
var cp = cptable[x], D = cp.dec, E = cp.enc;
if(cacheit) cptable.utils.cache.encache();
else cptable.utils.cache.decache();
Object.keys(D).forEach(function(d) {
if(E[D[d]] != d) {
if(typeof E[D[d]] !== "undefined") return;
if(D[d].charCodeAt(0) == 0xFFFD) return;
if(D[E[D[d]]] === D[d]) return;
throw new Error(x + " e.d[" + d + "] = " + E[D[d]] + "; d[" + d + "]=" + D[d] + "; d.e.d[" + d + "] = " + D[E[D[d]]]);
}
});
Object.keys(E).forEach(function(e) {
if(D[E[e]] != e) {
throw new Error(x + " d.e[" + e + "] = " + D[E[e]] + "; e[" + e + "]=" + E[e] + "; e.d.e[" + e + "] = " + E[D[E[e]]]);
}
});
var corpus = ["foobar"];
corpus.forEach(function(w){
assert.equal(U.decode(x,U.encode(x,w)),w);
});
cptable.utils.cache.encache();
});
}; };
describe('cached', function() {
Object.keys(cptable).filter(function(w) { return w == +w; }).forEach(chk(cptable, true));
});
describe('direct', function() {
Object.keys(cptable).filter(function(w) { return w == +w; }).forEach(chk(cptable, false));
});
});
describe('entry conditions', function() {
it('should fail to load utils if cptable unavailable', function() {
var sandbox = {};
var ctx = vm.createContext(sandbox);
assert.throws(function() {
vm.runInContext(fs.readFileSync('cputils.js','utf8'),ctx);
});
});
it('should load utils if cptable is available', function() {
var sandbox = {};
var ctx = vm.createContext(sandbox);
vm.runInContext(fs.readFileSync('cpexcel.js','utf8'),ctx);
vm.runInContext(fs.readFileSync('cputils.js','utf8'),ctx);
});
var chken = function(cp, i) {
var c = function(cp, i, e) {
var str = cptable.utils.encode(cp,i,e);
var arr = cptable.utils.encode(cp,i.split(""),e);
assert.deepEqual(str,arr);
if(typeof Buffer === 'undefined') return;
var buf = cptable.utils.encode(cp,Buffer_from(i),e);
assert.deepEqual(str,buf);
};
cptable.utils.cache.encache();
c(cp,i);
c(cp,i,'buf');
c(cp,i,'arr');
c(cp,i,'str');
cptable.utils.cache.decache();
c(cp,i);
c(cp,i,'buf');
c(cp,i,'arr');
c(cp,i,'str');
};
describe('encode', function() {
it('CP 1252 : sbcs', function() { chken(1252,"foo•bþr"); });
it('CP 708 : sbcs', function() { chken(708,"ت and ث smiley faces");});
it('CP 936 : dbcs', function() { chken(936, "这是中文字符测试");});
});
var chkde = function(cp, i) {
var c = function(cp, i) {
var s;
if(typeof Buffer !== 'undefined' && i instanceof Buffer) s = [].map.call(i, function(s){return String.fromCharCode(s); });
else s=(i.map) ? i.map(function(s){return String.fromCharCode(s); }) : i;
var str = cptable.utils.decode(cp,i);
var arr = cptable.utils.decode(cp,s.join?s.join(""):s);
assert.deepEqual(str,arr);
if(typeof Buffer === 'undefined') return;
var buf = cptable.utils.decode(cp,Buffer_from(i));
assert.deepEqual(str,buf);
};
cptable.utils.cache.encache();
c(cp,i);
cptable.utils.cache.decache();
c(cp,i);
};
describe('decode', function() {
it('CP 1252 : sbcs', function() { chkde(1252,[0x66, 0x6f, 0x6f, 0x62, 0x61, 0x72]); }); /* "foobar" */
if(typeof Buffer !== 'undefined') it('CP 708 : sbcs', function() { chkde(708, Buffer_from([0xca, 0x20, 0x61, 0x6e, 0x64, 0x20, 0xcb, 0x20, 0x73, 0x6d, 0x69, 0x6c, 0x65, 0x79, 0x20, 0x66, 0x61, 0x63, 0x65, 0x73])); }); /* ("ت and ث smiley faces") */
it('CP 936 : dbcs', function() { chkde(936, [0xd5, 0xe2, 0xca, 0xc7, 0xd6, 0xd0, 0xce, 0xc4, 0xd7, 0xd6, 0xb7, 0xfb, 0xb2, 0xe2, 0xca, 0xd4]);}); /* "这是中文字符测试" */
});
});
function testfile(f,cp,type,skip) {
var d = fs.readFileSync(f);
var x = fs.readFileSync(f, type);
var a = x.split("");
var chk = function(cp) {
var y = cptable.utils.decode(cp, d);
assert.equal(x,y);
var z = cptable.utils.encode(cp, x);
if(z.length != d.length) throw new Error(f + " " + JSON.stringify(z) + " != " + JSON.stringify(d) + " : " + z.length + " " + d.length);
for(var i = 0; i != d.length; ++i) if(d[i] !== z[i]) throw new Error("" + i + " " + d[i] + "!=" + z[i]);
if(skip) return;
z = cptable.utils.encode(cp, a);
if(z.length != d.length) throw new Error(f + " " + JSON.stringify(z) + " != " + JSON.stringify(d) + " : " + z.length + " " + d.length);
for(var i = 0; i != d.length; ++i) if(d[i] !== z[i]) throw new Error("" + i + " " + d[i] + "!=" + z[i]);
if(f.indexOf("cptable.js") == -1) {
cptable.utils.encode(cp, d, 'str');
cptable.utils.encode(cp, d, 'arr');
}
}
cptable.utils.cache.encache();
chk(cp);
if(skip) return;
cptable.utils.cache.decache();
chk(cp);
cptable.utils.cache.encache();
}
describe('node natives', function() {
var node = [[65001, 'utf8',1], [1200, 'utf16le',1], [20127, 'ascii',0]];
var unicodefiles = ['codepage.md','README.md','cptable.js'];
var asciifiles = ['cputils.js'];
node.forEach(function(w) {
describe(w[1], function() {
cptable = require('./');
asciifiles.forEach(function(f) {
it('should process ' + f, function() { testfile('./misc/'+f+'.'+w[1],w[0],w[1]); });
});
if(!w[2]) return;
unicodefiles.forEach(function(f) {
it('should process ' + f, function() { testfile('./misc/'+f+'.'+w[1],w[0],w[1]); });
});
if(w[1] === 'utf8') it('should process bits', function() {
var files = fs.readdirSync('bits').filter(function(x){return x.substr(-3)==".js";});
files.forEach(function(f) { testfile('./bits/' + f,w[0],w[1],true); });
});
});
});
});
var m = cptable.utils.magic;
function cmp(x,z) {
assert.equal(x.length, z.length);
for(var i = 0; i != z.length; ++i) assert.equal(i+"/"+x.length+""+x[i], i+"/"+z.length+""+z[i]);
}
Object.keys(m).forEach(function(t){if(t != 16969) describe(m[t], function() {
it("should process codepage.md." + m[t], fs.existsSync('./misc/codepage.md.' + m[t]) ?
function() {
var b = fs.readFileSync('./misc/codepage.md.utf8', "utf8");
if(m[t] === "ascii") b = b.replace(/[\u0080-\uffff]*/g,"");
var x = fs.readFileSync('./misc/codepage.md.' + m[t]);
var y, z;
cptable.utils.cache.encache();
y = cptable.utils.decode(t, x);
assert.equal(y,b);
z = cptable.utils.encode(t, y);
if(t != 65000) cmp(x,z);
else { assert.equal(y, cptable.utils.decode(t, z)); }
cptable.utils.cache.decache();
y = cptable.utils.decode(t, x);
assert.equal(y,b);
z = cptable.utils.encode(t, y);
if(t != 65000) cmp(x,z);
else { assert.equal(y, cptable.utils.decode(t, z)); }
cptable.utils.cache.encache();
cptable.utils.encode(t, y, 'str');
cptable.utils.encode(t, y, 'arr');
cptable.utils.cache.decache();
cptable.utils.encode(t, y, 'str');
cptable.utils.encode(t, y, 'arr');
cptable.utils.cache.encache();
}
: null);
it("should process README.md." + m[t], fs.existsSync('./misc/README.md.' + m[t]) ?
function() {
var b = fs.readFileSync('./misc/README.md.utf8', "utf8");
if(m[t] === "ascii") b = b.replace(/[\u0080-\uffff]*/g,"");
var x = fs.readFileSync('./misc/README.md.' + m[t]);
x = [].slice.call(x);
cptable.utils.cache.encache();
var y = cptable.utils.decode(t, x);
assert.equal(y,b);
cptable.utils.cache.decache();
var y = cptable.utils.decode(t, x);
assert.equal(y,b);
cptable.utils.cache.encache();
}
: null);
});});
describe('failures', function() {
it('should fail to find CP 6969', function() {
assert.throws(function(){cptable[6969].dec});
assert.throws(function(){cptable[6969].enc});
});
it('should fail using utils', function() {
assert(!cptable.utils.hascp(6969));
assert.throws(function(){return cptable.utils.encode(6969, "foobar"); });
assert.throws(function(){return cptable.utils.decode(6969, [0x20]); });
});
it('should fail with black magic', function() {
assert(cptable.utils.hascp(16969));
assert.throws(function(){return cptable.utils.encode(16969, "foobar"); });
assert.throws(function(){return cptable.utils.decode(16969, [0x20]); });
});
it('should fail when presented with invalid char codes', function() {
assert.throws(function(){cptable.utils.cache.decache(); return cptable.utils.encode(20127, [String.fromCharCode(0xAA)]);});
});
it('should fail to propagate UTF8 BOM in UTF7', function() {
["+/v8-abc", "+/v9"].forEach(function(m) { assert.throws(function() {
assert.equal(m, cptable.utils.encode(65000, cptable.utils.decode(65000, m)));
}); });
});
});