test opts._flags being passed to transforms

Author: ahdinosaur

test/tr_flags.js

@@ -0,0 +1,44 @@
+var through = require('through2');
+var mdeps = require('../');
+var test = require('tap').test;
+
+test('--debug passed to transforms', function (t) {
+    var empty = require.resolve('./tr_flags/empty.js');
+
+    t.plan(5);
+
+    var p
+    [true, false].forEach(function(debug) {
+        p = mdeps({
+            debug: debug,
+            transform: function (file, opts) {
+              t.equal(opts._flags.debug, debug, 'debug: ' + debug);
+              return through();
+            }
+        })
+        p.on('error', function (err) { return t.fail(err.message) })
+        p.end(empty);
+
+        p = mdeps({ debug: debug })
+        p.write({
+            transform: function (file, opts) {
+                t.equal(opts._flags.debug, debug, 'debug: ' + debug);
+                return through();
+            },
+            options: {}
+        })
+        p.on('error', function (err) { return t.fail(err.message) })
+        p.end(empty);
+    });
+
+    p = mdeps({ debug: true })
+    p.write({
+        transform: function (file, opts) {
+            t.equal(opts._flags, Infinity, 'transform arguents are preserved');
+            return through();
+        },
+        options: { _flags: Infinity }
+    })
+    p.on('error', function (err) { return t.fail(err.message) })
+    p.end(empty);
+});