Add tests that run the carto binary.

test/bincarto.test.js

@@ -0,0 +1,37 @@
+var assert = require('assert');
+var exec = require('child_process').exec;
+var path = require('path');
+var util = require('util');
+var helper = require('./support/helper');
+var bin = path.resolve(path.join(__dirname, '..', 'bin', 'carto'));
+var fs = require('fs');
+
+describe('bin/carto', function() {
+    it('errors on no input', function(done) {
+        exec(bin, function(err, stdout, stderr) {
+            assert.equal(1, err.code);
+            assert.equal("carto: no input files ('carto -h or --help' for help)\n", stdout);
+            done();
+        });
+    });
+    it('renders mml', function(done) {
+        var file = path.join(__dirname, 'rendering', 'identity.mml');
+        exec(util.format('%s %s', bin, file), function(err, stdout, stderr) {
+            assert.ifError(err);
+            helper.compareToXMLFile(helper.resultFile(file), stdout, done, [
+                helper.removeAbsoluteImages,
+                helper.removeAbsoluteDatasources
+            ]);
+        });
+    });
+    it('renders mss', function(done) {
+        var file = path.join(__dirname, 'rendering-mss', 'empty_name.mss');
+        exec(util.format('%s %s', bin, file), function(err, stdout, stderr) {
+            assert.ifError(err);
+            var expected = file.replace(path.extname(file),'')+'.xml';
+            var expected_data = fs.readFileSync(expected, 'utf8');
+            assert.equal(stdout,expected_data + '\n');
+            done();
+        });
+    });
+});