add test

test/function/samples/adds-plugin-context-to-plugins/_config.js

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+const assert = require('assert');
+
+module.exports = {
+	description: 'Adds plugin context to plugins with perf=true',
+	options: {
+		perf: true,
+		plugins: [
+			{
+				load() {
+					assert.ok(typeof this.parse === 'function');
+				},
+
+				resolveDynamicImport() {
+					assert.ok(typeof this.parse === 'function');
+				},
+
+				resolveId() {
+					assert.ok(typeof this.parse === 'function');
+				},
+
+				transform() {
+					assert.ok(typeof this.parse === 'function');
+				}
+			}
+		]
+	}
+};

test/function/samples/adds-plugin-context-to-plugins/foo.js

@@ -0,0 +1 @@
+export default 'foo';

test/function/samples/adds-plugin-context-to-plugins/main.js

@@ -0,0 +1 @@
+import('./foo');