internal/app/spwayland: check behaviour

This op is quite clean. Might get slightly more complex at some point passing socket fd.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/app/spwayland.go

@@ -12,6 +12,7 @@ import (
 func init() { gob.Register(new(spWaylandOp)) }
 
 // spWaylandOp exports the Wayland display server to the container.
+// Runs after spRuntimeOp.
 type spWaylandOp struct {
 	// Path to host wayland socket. Populated during toSystem if DirectWayland is true.
 	SocketPath *check.Absolute

internal/app/spwayland_test.go

@@ -0,0 +1,104 @@
+package app
+
+import (
+	"testing"
+
+	"hakurei.app/container"
+	"hakurei.app/container/stub"
+	"hakurei.app/hst"
+	"hakurei.app/system"
+	"hakurei.app/system/acl"
+	"hakurei.app/system/wayland"
+)
+
+func TestSpWaylandOp(t *testing.T) {
+	t.Parallel()
+	config := hst.Template()
+
+	checkOpBehaviour(t, []opBehaviourTestCase{
+		{"not enabled", func(bool, bool) outcomeOp {
+			return new(spWaylandOp)
+		}, func() *hst.Config {
+			c := hst.Template()
+			*c.Enablements = 0
+			return c
+		}, nil, nil, nil, nil, errNotEnabled, nil, nil, nil, nil, nil},
+
+		{"success notAbs defaultAppId", func(bool, bool) outcomeOp {
+			return new(spWaylandOp)
+		}, func() *hst.Config {
+			c := hst.Template()
+			c.ID = ""
+			return c
+		}, nil, []stub.Call{
+			call("lookupEnv", stub.ExpectArgs{"WAYLAND_DISPLAY"}, "wayland-1", nil),
+		}, newI().
+			// state.instance
+			Ephemeral(system.Process, m(wantInstancePrefix), 0711).
+			// toSystem
+			Wayland(
+				m(wantInstancePrefix+"/wayland"),
+				m(wantRuntimePath+"/wayland-1"),
+				"app.hakurei."+wantAutoEtcPrefix,
+				wantAutoEtcPrefix,
+			), sysUsesInstance(nil), nil, insertsOps(afterSpRuntimeOp(nil)), []stub.Call{
+			// this op configures the container state and does not make calls during toContainer
+		}, &container.Params{
+			Ops: new(container.Ops).
+				Bind(m(wantInstancePrefix+"/wayland"), m("/run/user/1000/wayland-0"), 0),
+		}, paramsWantEnv(config, map[string]string{
+			wayland.WaylandDisplay: wayland.FallbackName,
+		}, nil), nil},
+
+		{"success direct", func(isShim, _ bool) outcomeOp {
+			if !isShim {
+				return new(spWaylandOp)
+			}
+			return &spWaylandOp{SocketPath: m("/proc/nonexistent/wayland")}
+		}, func() *hst.Config {
+			c := hst.Template()
+			c.DirectWayland = true
+			return c
+		}, nil, []stub.Call{
+			call("lookupEnv", stub.ExpectArgs{"WAYLAND_DISPLAY"}, "/proc/nonexistent/wayland", nil),
+			call("verbose", stub.ExpectArgs{[]any{"direct wayland access, PROCEED WITH CAUTION"}}, nil, nil),
+		}, newI().
+			// state.ensureRuntimeDir
+			Ensure(m(wantRunDirPath), 0700).
+			UpdatePermType(system.User, m(wantRunDirPath), acl.Execute).
+			Ensure(m(wantRuntimePath), 0700).
+			UpdatePermType(system.User, m(wantRuntimePath), acl.Execute).
+			// toSystem
+			UpdatePermType(hst.EWayland, m("/proc/nonexistent/wayland"), acl.Read, acl.Write, acl.Execute), nil, nil, insertsOps(afterSpRuntimeOp(nil)), []stub.Call{
+			// this op configures the container state and does not make calls during toContainer
+		}, &container.Params{
+			Ops: new(container.Ops).
+				Bind(m("/proc/nonexistent/wayland"), m("/run/user/1000/wayland-0"), 0),
+		}, paramsWantEnv(config, map[string]string{
+			wayland.WaylandDisplay: wayland.FallbackName,
+		}, nil), nil},
+
+		{"success", func(bool, bool) outcomeOp {
+			return new(spWaylandOp)
+		}, hst.Template, nil, []stub.Call{
+			call("lookupEnv", stub.ExpectArgs{"WAYLAND_DISPLAY"}, nil, nil),
+			call("verbose", stub.ExpectArgs{[]any{"WAYLAND_DISPLAY is not set, assuming wayland-0"}}, nil, nil),
+		}, newI().
+			// state.instance
+			Ephemeral(system.Process, m(wantInstancePrefix), 0711).
+			// toSystem
+			Wayland(
+				m(wantInstancePrefix+"/wayland"),
+				m(wantRuntimePath+"/"+wayland.FallbackName),
+				"org.chromium.Chromium",
+				wantAutoEtcPrefix,
+			), sysUsesInstance(nil), nil, insertsOps(afterSpRuntimeOp(nil)), []stub.Call{
+			// this op configures the container state and does not make calls during toContainer
+		}, &container.Params{
+			Ops: new(container.Ops).
+				Bind(m(wantInstancePrefix+"/wayland"), m("/run/user/1000/wayland-0"), 0),
+		}, paramsWantEnv(config, map[string]string{
+			wayland.WaylandDisplay: wayland.FallbackName,
+		}, nil), nil},
+	})
+}