Add test case generator script

Author: conradz

generate-tests.js

@@ -0,0 +1,47 @@
+// Generates missing output source and AST files for the test cases
+// IMPORTANT: Always verify the generated files when using this!
+
+var fs = require('fs');
+var path = require('path');
+var parse = require('./').parse;
+var stringify = require('./').stringify;
+
+var casesDir = path.join(__dirname, 'test', 'cases');
+var cases = fs.readdirSync(casesDir)
+    .map(function(f) { return path.join(casesDir, f); });
+
+cases.forEach(function(dir) {
+    var inputFile = path.join(dir, 'input.css');
+    if (!fs.existsSync(inputFile))
+        throw new Error('Missing input file ' + inputFile);
+
+    var input = fs.readFileSync(inputFile, 'utf8');
+    var parsed;
+    try {
+        parsed = parse(input, { source: 'input.css' });
+    } catch(e) {
+        console.log('Failed to parse', inputFile);
+        throw e;
+    }
+
+    var outputFile = path.join(dir, 'output.css');
+    if (!fs.existsSync(outputFile)) {
+        console.log('Generating', outputFile);
+        var output = stringify(parsed);
+        fs.writeFileSync(outputFile, output, 'utf8');
+    }
+
+    var compressedFile = path.join(dir, 'compressed.css');
+    if (!fs.existsSync(compressedFile)) {
+        console.log('Generating', compressedFile);
+        var compressed = stringify(parsed, { compress: true });
+        fs.writeFileSync(compressedFile, compressed, 'utf8');
+    }
+
+    var astFile = path.join(dir, 'ast.json');
+    if (!fs.existsSync(astFile)) {
+        console.log('Generating', astFile);
+        var ast = JSON.stringify(parsed, null, '  ');
+        fs.writeFileSync(astFile, ast, 'utf8');
+    }
+});