feat(vanilla): add testing infrastructure and tests (NK-wjnczv)

1 files changed, 25 insertions, 0 deletions

diff --git a/vanilla/node_modules/postcss/lib/at-rule.js b/vanilla/node_modules/postcss/lib/at-rule.js
new file mode 100644
index 0000000..9486447
--- /dev/null
+++ b/vanilla/node_modules/postcss/lib/at-rule.js
@@ -0,0 +1,25 @@
+'use strict'
+
+let Container = require('./container')
+
+class AtRule extends Container {
+  constructor(defaults) {
+    super(defaults)
+    this.type = 'atrule'
+  }
+
+  append(...children) {
+    if (!this.proxyOf.nodes) this.nodes = []
+    return super.append(...children)
+  }
+
+  prepend(...children) {
+    if (!this.proxyOf.nodes) this.nodes = []
+    return super.prepend(...children)
+  }
+}
+
+module.exports = AtRule
+AtRule.default = AtRule
+
+Container.registerAtRule(AtRule)