tests: move llb tests into tests/llb

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

tests/llb/fetch-container/exist/main.cue

@@ -0,0 +1,36 @@
+package testing
+
+busybox1: #compute: [
+	{
+		do:  "fetch-container"
+		ref: "busybox"
+	},
+]
+
+busybox2: #compute: [
+	{
+		do:  "fetch-container"
+		ref: "busybox:latest"
+	},
+]
+
+busybox3: #compute: [
+	{
+		do:  "fetch-container"
+		ref: "busybox:1.33-musl"
+	},
+]
+
+busybox4: #compute: [
+	{
+		do:  "fetch-container"
+		ref: "busybox@sha256:e2af53705b841ace3ab3a44998663d4251d33ee8a9acaf71b66df4ae01c3bbe7"
+	},
+]
+
+busybox5: #compute: [
+	{
+		do:  "fetch-container"
+		ref: "busybox:1.33-musl@sha256:e2af53705b841ace3ab3a44998663d4251d33ee8a9acaf71b66df4ae01c3bbe7"
+	},
+]

tests/llb/fetch-container/invalid/main.cue

@@ -0,0 +1,7 @@
+package testing
+
+#compute: [
+	{
+		do: "fetch-container"
+	},
+]

tests/llb/fetch-container/nonexistent/digest/main.cue

@@ -0,0 +1,8 @@
+package testing
+
+#compute: [
+	{
+		do:  "fetch-container"
+		ref: "alpine@sha256:c6c7524e2111f22a9f7577211232d89a9e68cf5b9ed4a41ba77957c9771380a5"
+	},
+]

tests/llb/fetch-container/nonexistent/image-with-valid-digest/main.cue

@@ -0,0 +1,10 @@
+package testing
+
+// XXX WATCHOUT
+// Once buildkit has pulled that digest, it will stay cached and happily succeed WHATEVER the image name then is
+#compute: [
+	{
+		do:  "fetch-container"
+		ref: "busyboxaaa@sha256:e2af53705b841ace3ab3a44998663d4251d33ee8a9acaf71b66df4ae01c3bbe7"
+	},
+]

tests/llb/fetch-container/nonexistent/image/main.cue

@@ -0,0 +1,8 @@
+package testing
+
+#compute: [
+	{
+		do:  "fetch-container"
+		ref: "doesnotexist"
+	},
+]

tests/llb/fetch-container/nonexistent/tag/main.cue

@@ -0,0 +1,8 @@
+package testing
+
+#compute: [
+	{
+		do:  "fetch-container"
+		ref: "alpine:doesnotexist"
+	},
+]