Add test on docker.#Run

Signed-off-by: Vasek - Tom C <tom.chauveau@epitech.eu>

pkg/universe.dagger.io/docker/test/run-export-file-test.cue

@@ -0,0 +1,23 @@
+package test
+
+import (
+	"dagger.io/dagger"
+	"universe.dagger.io/docker"
+	"universe.dagger.io/alpine"
+)
+
+dagger.#Plan & {
+	actions: {
+		image: alpine.#Build
+
+		run: docker.#Run & {
+			"image": image.output
+			script: #"""
+				echo -n hello world >> /output.txt
+				"""#
+			export: files: "/output.txt": _ & {
+				contents: "hello world"
+			}
+		}
+	}
+}