blob: 6d7d1b8ea29344843848b053c4a16dc6e120046e [file] [log] [blame]
var files = {};
function lookup(filename, line) {
var f = files[filename];
if (!f) {
try {
f = files[filename] = read(filename).split('\n');
} catch (e) {
f = files[filename] = [];
}
}
return f[line-1] || 'BAD_LINE'; // file line numbers are 1-based
}
// TODO(apenwarr): Right now this only really works right on chrome.
// Maybe take some advice from this article:
// http://stackoverflow.com/questions/5358983/javascript-stack-inspection-on-safari-mobile-ipad
function trace() {
var FILELINE_RE = /[\b\s]\(?([^:\s]+):(\d+)/;
var out = [];
var e = Error().stack;
if (!e) {
return [['UNKNOWN', 0], ['UNKNOWN', 0]];
}
var lines = e.split('\n');
for (i in lines) {
if (i > 2) {
g = lines[i].match(FILELINE_RE);
if (g) {
out.push([g[1], parseInt(g[2])]);
} else {
out.push(['UNKNOWN', 0]);
}
}
}
return out;
}
function _pad(len, s) {
s += '';
while (s.length < len) {
s += ' ';
}
return s;
}
function _check(cond, trace, condstr) {
print('!', _pad(15, trace[0] + ':' + trace[1]),
_pad(54, condstr),
cond ? 'ok' : 'FAILED');
}
function _content(trace) {
var WV_RE = /WV[\w_]+\((.*)\)/;
var line = lookup(trace[0], trace[1]);
var g = line.match(WV_RE);
return g ? g[1] : '...';
}
function WVPASS(cond) {
var t = trace()[1];
if (arguments.length >= 1) {
var condstr = _content(t);
return _check(cond, t, condstr);
} else {
// WVPASS() with no arguments is a pass, although cond would
// default to false
return _check(true, t, '');
}
}
function WVFAIL(cond) {
var t = trace()[1];
if (arguments.length >= 1) {
var condstr = 'NOT(' + _content(t) + ')';
return _check(!cond, t, condstr);
} else {
// WVFAIL() with no arguments is a fail, although cond would
// default to false (which is a pass)
return _check(false, t, 'NOT()')
}
}
function WVEXCEPT(etype, func) {
var t = trace()[1];
try {
func();
} catch (e) {
return _check(e instanceof etype, t, e);
}
return _check(false, t, 'no exception: ' + etype);
}
function WVPASSEQ(a, b, precision) {
var t = trace()[1];
if (a && b && a.join && b.join) {
a = a.join('|');
b = b.join('|');
}
var cond = precision ? Math.abs(a-b) < precision : (a == b);
return _check(cond, t, '' + a + ' == ' + b);
}
function WVPASSNE(a, b, precision) {
var t = trace()[1];
if (a.join && b.join) {
a = a.join('|');
b = b.join('|');
}
var cond = precision ? Math.abs(a-b) >= precision : (a != b);
return _check(a != b, t, '' + a + ' != ' + b);
}
function WVPASSLT(a, b) {
var t = trace()[1];
return _check(a < b, t, '' + a + ' < ' + b);
}
function WVPASSGT(a, b) {
var t = trace()[1];
return _check(a > b, t, '' + a + ' > ' + b);
}
function WVPASSLE(a, b) {
var t = trace()[1];
return _check(a <= b, t, '' + a + ' <= ' + b);
}
function WVPASSGE(a, b) {
var t = trace()[1];
return _check(a >= b, t, '' + a + ' >= ' + b);
}
function wvtest(name, f) {
print('\nTesting "' + name + '" in ' + trace()[1][0] + ':');
return f();
}