//go:build linux

package release

import (
	"github.com/carlosframework/platform/internal/rootstate"
	"testing"
)

func TestPlan14GenerationNamespaceProof(t *testing.T) {
	path := "/opt/carlos/versions/v1/lifecycle"
	before := rootstate.FileIdentity{Boot: "boot", Device: 66305, Inode: 131086, Filesystem: "ext4:volume", Handle: "file-handle", HandleType: 1, Mode: 0100755, MountRoot: "/opt/carlos", MountPoint: "/opt/carlos", MountNamespace: "private", Mount: 306, MountUnique: 306, NamespaceUnique: 1, MountLineage: "/opt/carlos\t/opt/carlos\n/\t/\n"}
	after := before
	after.MountRoot, after.MountPoint, after.MountNamespace, after.Mount = "/", "/", "host", 127
	after.MountLineage = "/\t/\n"
	after.MountUnique, after.NamespaceUnique = 127, 2
	if before.Same(after) {
		t.Fatal("fixture must cross mount layouts")
	}
	if !GenerationFileProof(path, before, after) {
		t.Fatal("same file through host mount refused")
	}
	for _, field := range []string{"source", "point", "namespace", "device", "filesystem", "handle", "inode", "owner", "mode", "missing"} {
		bad := after
		switch field {
		case "source":
			bad.MountRoot = "/other"
		case "point":
			bad.MountPoint = "/opt"
		case "namespace":
			bad.MountNamespace = before.MountNamespace
			bad.NamespaceUnique = before.NamespaceUnique
		case "device":
			bad.Device++
		case "filesystem":
			bad.Filesystem = "other"
		case "handle":
			bad.Handle = "other"
		case "inode":
			bad.Inode++
		case "owner":
			bad.UID++
		case "mode":
			bad.Mode++
		case "missing":
			bad.Handle = ""
		}
		if GenerationFileProof(path, before, bad) {
			t.Fatal("substitution accepted", field)
		}
	}
}

func TestPlan14GenerationMountSubstitution(t *testing.T) {
	path := "/opt/carlos/versions/v1/app"
	before := rootstate.FileIdentity{Boot: "old", Device: 1, Inode: 2, Filesystem: "fs", Handle: "handle", Mount: 3, MountUnique: 3, NamespaceUnique: 1, MountNamespace: "mnt:[1]", MountRoot: "/", MountPoint: "/", MountLineage: "/\t/\n"}
	for _, boot := range []string{before.Boot, "new"} {
		for _, point := range []string{"/opt/carlos", "/opt/carlos/versions/v1", path, "/"} {
			after := before
			after.Boot = boot
			after.MountRoot, after.MountPoint = point, point
			after.MountLineage = point + "\t" + point + "\n" + before.MountLineage
			if GenerationFileProof(path, before, after) {
				t.Fatal("substituted mount accepted", boot, point)
			}
		}
	}
}