test: implemented tests for input list

Signed-off-by: Sam Alba <sam.alba@gmail.com>

tests/cli/input/list/main.cue

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"dagger.io/dagger"
+    "dagger.io/aws"
+)
+
+awsConfig: aws.#Config & {
+    // force region
+    region: "us-east-1"
+}
+
+#A: {
+	// source dir
+	source:         dagger.#Artifact @dagger(input)
+	sourceNotInput: dagger.#Artifact
+
+	// a secret
+	key:         dagger.#Secret @dagger(input)
+	keyNotInput: dagger.#Secret
+
+	// a string
+	str:    string           @dagger(input)
+	strSet: "pipo"           @dagger(input)
+	strDef: *"yolo" | string @dagger(input)
+
+	// a number
+	num:         int | *42 @dagger(input)
+	numNotInput: int
+
+    // aws config
+    cfg: awsConfig
+}
+
+cfgInline: {
+    #A
+}
+
+cfg: #A & {
+    // force this key
+    num: 21
+}
+
+cfg2: cfg