flow like the river

BACK_BACK/node_modules/static-module/test/sourcemap.js

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+var test = require('tape');
+var fs = require('fs');
+var concat = require('concat-stream');
+var PassThrough = require('stream').PassThrough;
+var convertSourceMap = require('convert-source-map');
+var SourceMapConsumer = require('source-map').SourceMapConsumer;
+var uglify = require('uglify-js');
+var staticModule = require('../');
+
+test('source maps', function (t) {
+    t.plan(6);
+
+    var transform = staticModule({
+        sheetify: function (filename) {
+            var stream = PassThrough();
+            stream.write('`.css{\n');
+            stream.write('  color: red;\n');
+            stream.end('}`');
+            return stream;
+        }
+    }, { sourceMap: true, inputFilename: 'main.js' });
+
+    fs.createReadStream(__dirname + '/sourcemap/main.js').pipe(transform).pipe(concat({ encoding: 'string' }, function (res) {
+        var consumer = new SourceMapConsumer(convertSourceMap.fromSource(res).toObject());
+
+        var mapped = consumer.originalPositionFor({
+            line: 8,
+            column: 0
+        });
+        t.equal(mapped.line, 8);
+        t.equal(mapped.column, 0);
+
+        mapped = consumer.originalPositionFor({
+            line: 10,
+            column: 2
+        });
+        t.equal(mapped.line, 8);
+        t.equal(mapped.column, 19);
+
+        mapped = consumer.originalPositionFor({
+            line: 12,
+            column: 0
+        });
+        t.equal(mapped.line, 10);
+        t.equal(mapped.column, 0);
+    }));
+});
+
+test('input source map', function (t) {
+    t.plan(4);
+
+    var content = fs.readFileSync(__dirname + '/sourcemap/main.js', 'utf8');
+    var minified = uglify.minify({ 'main.js': content }, {
+        output: { beautify: true },
+        sourceMap: {
+            url: 'inline',
+            includeSources: true
+        }
+    });
+
+    var transform = staticModule({
+        sheetify: function (filename) {
+            var stream = PassThrough();
+            stream.end('`.css{\n  color: orange;\n}`');
+            return stream;
+        }
+    }, { sourceMap: true, inputFilename: 'main.js' });
+
+    transform.pipe(concat({ encoding: 'string' }, function (res) {
+        var consumer = new SourceMapConsumer(convertSourceMap.fromSource(res).toObject());
+
+        var mapped = consumer.originalPositionFor({
+            line: 7,
+            column: 0
+        });
+        t.equal(mapped.line, 8);
+        t.equal(mapped.column, 0);
+
+        mapped = consumer.originalPositionFor({
+            line: 9,
+            column: 4
+        });
+        t.equal(mapped.line, 10);
+        t.equal(mapped.column, 0);
+    }));
+
+    transform.end(minified.code);
+});
+
+test('retain input source map when file has no static-module use', function (t) {
+    t.plan(4);
+
+    var content = fs.readFileSync(__dirname + '/sourcemap/main.js', 'utf8');
+    var minified = uglify.minify({ 'main.js': content }, {
+        output: { beautify: true },
+        sourceMap: {
+            url: 'inline',
+            includeSources: true
+        }
+    });
+
+    var transform = staticModule({
+        not_sheetify: function () { return 'whatever'; }
+    }, { sourceMap: true, inputFilename: 'main.js' });
+
+    transform.pipe(concat({ encoding: 'string' }, function (res) {
+        var consumer = new SourceMapConsumer(convertSourceMap.fromSource(res).toObject());
+
+        var mapped = consumer.originalPositionFor({
+            line: 7,
+            column: 0
+        });
+        t.equal(mapped.line, 8);
+        t.equal(mapped.column, 0);
+
+        mapped = consumer.originalPositionFor({
+            line: 7,
+            column: 21
+        });
+        t.equal(mapped.line, 10);
+        t.equal(mapped.column, 0);
+    }));
+
+
+    transform.end(minified.code);
+});