template-strings.js•818 B
var test = require('tape');
var evaluate = require('../');
var parse = require('esprima').parse;
test('untagged template strings', function (t) {
t.plan(1);
var src = '`${1},${2 + n},${`4,5`}`';
var ast = parse(src).body[0].expression;
var res = evaluate(ast, {
n: 6
});
t.deepEqual(res, '1,8,4,5');
});
test('tagged template strings', function (t) {
t.plan(3);
var src = 'template`${1},${2 + n},${`4,5`}`';
var ast = parse(src).body[0].expression;
var res = evaluate(ast, {
template: function (strings) {
t.deepEqual(strings, ['', ',', ',', '']);
var values = [].slice.call(arguments, 1);
t.deepEqual(values, [1, 8, '4,5']);
return 'foo';
},
n: 6
});
t.deepEqual(res, 'foo');
})