Adding tests

Signed-off-by: dubo-dubon-duponey <dubodubonduponey+github@pm.me>

examples/tests/compute/simple/main.cue

@@ -0,0 +1,15 @@
+package testing
+
+#dagger: {
+	compute: [
+		{
+			do: "fetch-container"
+			ref: "alpine"
+		},
+		{
+			do: "exec"
+			args: ["true"]
+			dir: "/"
+		}
+	]
+}