immucore/pkg/mount/mount_test.go
2023-02-03 15:56:15 +01:00

102 lines
4.0 KiB
Go

package mount_test
import (
"github.com/kairos-io/immucore/pkg/mount"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
"github.com/spectrocloud-labs/herd"
)
var _ = Describe("mounting immutable setup", func() {
var g *herd.Graph
BeforeEach(func() {
g = herd.DAG()
})
Context("simple invocation", func() {
It("mounts base overlay, attempt to mount oem, and updates the fstab", func() {
s := &mount.State{Rootdir: "/"}
s.Register(g)
dag := g.Analyze()
Expect(len(dag)).To(Equal(7), s.WriteDAG(g)) // Expect 3 layers
Expect(len(dag[0])).To(Equal(1), s.WriteDAG(g)) // 1 Item for each layer, as are tight deps
Expect(len(dag[1])).To(Equal(1), s.WriteDAG(g))
Expect(len(dag[2])).To(Equal(1), s.WriteDAG(g))
Expect(len(dag[4])).To(Equal(2), s.WriteDAG(g))
Expect(dag[0][0].Name).To(Equal("mount-base-overlay"), s.WriteDAG(g))
Expect(dag[1][0].Name).To(Equal("mount-oem"), s.WriteDAG(g))
Expect(dag[2][0].Name).To(Equal("rootfs-hook"), s.WriteDAG(g))
Expect(dag[3][0].Name).To(Equal("load-config"), s.WriteDAG(g))
Expect(dag[4][0].Name).To(Or(Equal("overlay-mount"), Equal("custom-mount")), s.WriteDAG(g))
Expect(dag[4][1].Name).To(Or(Equal("overlay-mount"), Equal("custom-mount")), s.WriteDAG(g))
Expect(dag[5][0].Name).To(Equal("mount-bind"), s.WriteDAG(g))
Expect(dag[6][0].Name).To(Equal("write-fstab"), s.WriteDAG(g))
})
It("mounts base overlay, attempt to mount oem, and updates the fstab", func() {
s := &mount.State{Rootdir: "/", MountRoot: true}
s.Register(g)
dag := g.Analyze()
Expect(len(dag)).To(Equal(9), s.WriteDAG(g)) // Expect 4 layers
Expect(len(dag[0])).To(Equal(2), s.WriteDAG(g)) // 2 items in first layer
Expect(len(dag[1])).To(Equal(1)) // 1 Item for each layer, as are tight deps
Expect(len(dag[2])).To(Equal(1))
Expect(len(dag[3])).To(Equal(1))
Expect(len(dag[6])).To(Equal(2))
Expect(dag[0][0].Name).To(Or(Equal("mount-base-overlay"), Equal("mount-state")), s.WriteDAG(g))
Expect(dag[0][1].Name).To(Or(Equal("mount-base-overlay"), Equal("mount-state")), s.WriteDAG(g))
Expect(dag[1][0].Name).To(Equal("discover-state"))
Expect(dag[2][0].Name).To(Equal("mount-root"))
Expect(dag[3][0].Name).To(Equal("mount-oem"))
Expect(dag[4][0].Name).To(Equal("rootfs-hook"))
Expect(dag[5][0].Name).To(Equal("load-config"))
Expect(dag[6][0].Name).To(Or(Equal("overlay-mount"), Equal("custom-mount")), s.WriteDAG(g))
Expect(dag[6][1].Name).To(Or(Equal("overlay-mount"), Equal("custom-mount")), s.WriteDAG(g))
Expect(dag[7][0].Name).To(Equal("mount-bind"))
Expect(dag[8][0].Name).To(Equal("write-fstab"))
})
It("mounts all", func() {
s := &mount.State{Rootdir: "/", MountRoot: true,
OverlayDir: []string{"/etc"},
BindMounts: []string{"/etc/kubernetes"},
CustomMounts: map[string]string{"COS_PERSISTENT": "/usr/local"}}
s.Register(g)
dag := g.Analyze()
Expect(len(dag)).To(Equal(9), s.WriteDAG(g)) // Expect 6 layers
Expect(len(dag[0])).To(Equal(2), s.WriteDAG(g)) // 2 items in first layer
Expect(len(dag[1])).To(Equal(1)) // 1 Item for each layer, as are tight deps
Expect(len(dag[2])).To(Equal(1))
Expect(len(dag[3])).To(Equal(1))
Expect(len(dag[6])).To(Equal(2))
Expect(dag[0][0].Name).To(Or(Equal("mount-base-overlay"), Equal("mount-state")), s.WriteDAG(g))
Expect(dag[0][1].Name).To(Or(Equal("mount-base-overlay"), Equal("mount-state")), s.WriteDAG(g))
Expect(dag[1][0].Name).To(Equal("discover-state"))
Expect(dag[2][0].Name).To(Equal("mount-root"))
Expect(dag[3][0].Name).To(Equal("mount-oem"))
Expect(dag[4][0].Name).To(Equal("rootfs-hook"))
Expect(dag[5][0].Name).To(Equal("load-config"))
Expect(dag[6][0].Name).To(Or(Equal("overlay-mount"), Equal("custom-mount")), s.WriteDAG(g))
Expect(dag[6][1].Name).To(Or(Equal("overlay-mount"), Equal("custom-mount")), s.WriteDAG(g))
Expect(dag[7][0].Name).To(Equal("mount-bind"))
Expect(dag[8][0].Name).To(Equal("write-fstab"))
})
})
})