kpdecker
50 lines
1.4 KiB
JavaScript
50 lines
1.4 KiB
JavaScript
/*global CompilerContext, Handlebars */
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try {
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var SourceMap = require('source-map'),
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SourceMapConsumer = SourceMap.SourceMapConsumer;
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} catch (err) {
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/* NOP for in browser */
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}
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describe('source-map', function() {
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if (!Handlebars.precompile || !SourceMap) {
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return;
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}
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it('should safely include source map info', function() {
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var template = Handlebars.precompile('{{hello}}', {destName: 'dest.js', srcName: 'src.hbs'});
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equal(!!template.code, true);
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equal(!!template.map, !CompilerContext.browser);
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});
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it('should map source properly', function() {
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var source = ' b{{hello}} \n {{bar}}a {{#block arg hash=(subex 1 subval)}}{{/block}}',
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template = Handlebars.precompile(source, {destName: 'dest.js', srcName: 'src.hbs'});
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if (template.map) {
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var consumer = new SourceMapConsumer(template.map),
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lines = template.code.split('\n'),
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srcLines = source.split('\n'),
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generated = grepLine('" b"', lines),
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source = grepLine(' b', srcLines);
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var mapped = consumer.originalPositionFor(generated);
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equal(mapped.line, source.line);
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equal(mapped.column, source.column);
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}
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});
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});
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function grepLine(token, lines) {
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for (var i = 0; i < lines.length; i++) {
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var column = lines[i].indexOf(token);
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if (column >= 0) {
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return {
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line: i+1,
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column: column
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};
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}
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}
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}
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