Add test

Signed-off-by: Joel Longtine <joel@dagger.io>

tests/plan/do/error_message_for_0.1_projects.cue

@@ -0,0 +1,60 @@
+package main
+
+import (
+	"alpha.dagger.io/dagger"
+	"alpha.dagger.io/aws/s3"
+	"alpha.dagger.io/netlify"
+	"alpha.dagger.io/os"
+)
+
+repo: dagger.#Artifact & dagger.#Input
+
+hello: {
+
+	dir: dagger.#Artifact & dagger.#Input
+
+	ctr: os.#Container & {
+		command: """
+			ls -l /src > /tmp/out
+			"""
+		mount: "/src": from: dir
+	}
+
+	f: os.#File & {
+		from: ctr
+		path: "/tmp/out"
+	}
+
+	message: f.contents & dagger.#Output
+}
+
+// Website
+web: {
+	source: os.#Dir & {
+		from: repo
+		path: "web"
+	}
+
+	url: string & dagger.#Output
+
+	// Where to host the website?
+	provider: *"s3" | "netlify" & dagger.#Input
+
+	// Deploy to AWS S3
+	if provider == "s3" {
+		url:    "\(bucket.url)index.html"
+		bucket: s3.#Put & {
+			contentType: "text/html"
+			"source":    source
+		}
+	}
+
+	// Deploy to Netlify
+	if provider == "netlify" {
+		url: site.url
+
+		site: netlify.#Site & {
+			contents: source
+		}
+	}
+}