Add tests on docker.#Dockerfile

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

pkg/universe.dagger.io/docker/test/testdata/Dockerfile

@@ -0,0 +1,19 @@
+###
+# STAGE: builder
+# Build a simple go program
+# GO TO STAGE: app
+###
+FROM golang:1.17-alpine as builder
+
+WORKDIR /app
+
+COPY go.mod .
+COPY main.go .
+
+RUN go build -o hello main.go
+
+FROM alpine:3.15@sha256:21a3deaa0d32a8057914f36584b5288d2e5ecc984380bc0118285c70fa8c9300
+
+COPY --from=builder /app/hello /bin/hello
+
+ENTRYPOINT ["hello"]

pkg/universe.dagger.io/docker/test/testdata/go.mod

@@ -0,0 +1,3 @@
+module test.com
+
+go 1.17

pkg/universe.dagger.io/docker/test/testdata/main.go

@@ -0,0 +1,7 @@
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Printf("hello world")
+}