1 files changed, 18 insertions, 17 deletions
diff --git a/test/lib/commands/find-dupes.js b/test/lib/commands/find-dupes.js
index c1b9c71df..06bd097b6 100644
--- a/test/lib/commands/find-dupes.js
+++ b/test/lib/commands/find-dupes.js
@@ -1,27 +1,28 @@
 const t = require('tap')
 
-const { real: mockNpm } = require('../../fixtures/mock-npm')
+const { load: loadMockNpm } = require('../../fixtures/mock-npm')
 
 t.test('should run dedupe in dryRun mode', async (t) => {
   t.plan(5)
-  const { Npm } = mockNpm(t, {
-    '@npmcli/arborist': function (args) {
-      t.ok(args, 'gets options object')
-      t.ok(args.path, 'gets path option')
-      t.ok(args.dryRun, 'is called in dryRun mode')
-      this.dedupe = () => {
-        t.ok(true, 'dedupe is called')
-      }
+  const { npm } = await loadMockNpm(t, {
+    mocks: {
+      '@npmcli/arborist': function (args) {
+        t.ok(args, 'gets options object')
+        t.ok(args.path, 'gets path option')
+        t.ok(args.dryRun, 'is called in dryRun mode')
+        this.dedupe = () => {
+          t.ok(true, 'dedupe is called')
+        }
+      },
+      '../../lib/utils/reify-finish.js': (npm, arb) => {
+        t.ok(arb, 'gets arborist tree')
+      },
     },
-    '../../lib/utils/reify-finish.js': (npm, arb) => {
-      t.ok(arb, 'gets arborist tree')
+    config: {
+      // explicitly set to false so we can be 100% sure it's always true when it
+      // hits arborist
+      'dry-run': false,
     },
   })
-  const npm = new Npm()
-  await npm.load()
-  // explicitly set to false so we can be 100% sure it's always true when it
-  // hits arborist
-  npm.config.set('dry-run', false)
-  npm.config.set('prefix', 'foo')
   await npm.exec('find-dupes', [])
 })