Add tests for pnp nonzero install

spec/ci/yarn_pnp_spec.rb

@@ -10,5 +10,15 @@
       expect(successful_body(app).strip).to eq("Hello from yarn-pnp-zero-install")
     end
   end
+
+  it "nonzero-install should deploy successfully" do
+    app = Hatchet::Runner.new(
+      "spec/fixtures/repos/yarn-pnp-nonzero-install",
+      config: { "NODE_MODULES_CACHE": "false" }
+    )
+    app.deploy do |app|
+      expect(successful_body(app).strip).to eq("Hello from yarn-pnp-nonzero-install")
+    end
+  end
 end
 

spec/fixtures/repos/yarn-pnp-nonzero-install/.gitignore

@@ -0,0 +1,7 @@
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions

spec/fixtures/repos/yarn-pnp-nonzero-install/.yarnrc.yml

@@ -0,0 +1 @@
+yarnPath: .yarn/releases/yarn-3.1.1.cjs

spec/fixtures/repos/yarn-pnp-nonzero-install/index.js

@@ -0,0 +1,11 @@
+const express = require("express");
+const app = express();
+const port = process.env["PORT"] || 3000;
+
+app.get("/", (_req,res) => {
+  res.send("Hello from yarn-pnp-nonzero-install");
+});
+
+app.listen(port, () => {
+  console.log(`yarn-pnp-nonzero-install listening on ${port}`);
+});

spec/fixtures/repos/yarn-pnp-nonzero-install/package.json

@@ -0,0 +1,13 @@
+{
+  "name": "yarn-pnp-nonzero-install",
+  "version": "1.0.0",
+  "main": "index.js",
+  "license": "MIT",
+  "scripts": {
+    "start": "yarn node index.js"
+  },
+  "dependencies": {
+    "express": "^4.17.2"
+  },
+  "packageManager": "yarn@3.1.1"
+}