internal/app/spaccount: check behaviour

This begins the effort of fully covering internal/app.

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

internal/app/spaccount_test.go

@@ -0,0 +1,90 @@
+package app
+
+import (
+	"maps"
+	"os"
+	"syscall"
+	"testing"
+
+	"hakurei.app/container"
+	"hakurei.app/container/stub"
+	"hakurei.app/hst"
+	"hakurei.app/message"
+	"hakurei.app/system"
+)
+
+func TestSpAccountOp(t *testing.T) {
+	config := hst.Template()
+
+	checkOpBehaviour(t, []opBehaviourTestCase{
+		{"invalid state", func() outcomeOp { return spAccountOp{} }, func() *hst.Config {
+			c := hst.Template()
+			c.Container.Shell = nil
+			return c
+		}, nil, []stub.Call{
+			// this op performs basic validation and does not make calls during toSystem
+		}, spAccountOp{}, system.New(t.Context(), message.NewMsg(nil), checkExpectUid), nil, syscall.ENOTRECOVERABLE, nil, nil, nil, nil, nil, nil},
+
+		{"invalid user name", func() outcomeOp { return spAccountOp{} }, func() *hst.Config {
+			c := hst.Template()
+			c.Container.Username = "9"
+			return c
+		}, nil, []stub.Call{
+			// this op performs basic validation and does not make calls during toSystem
+		}, spAccountOp{}, nil, nil, &hst.AppError{
+			Step: "finalise",
+			Err:  os.ErrInvalid,
+			Msg:  `invalid user name "9"`,
+		}, nil, nil, nil, nil, nil, nil},
+
+		{"success fallback username", func() outcomeOp { return spAccountOp{} }, func() *hst.Config {
+			c := hst.Template()
+			c.Container.Username = ""
+			return c
+		}, nil, []stub.Call{
+			// this op performs basic validation and does not make calls during toSystem
+		}, spAccountOp{}, system.New(t.Context(), message.NewMsg(nil), checkExpectUid), nil, nil, func(state *outcomeStateParams) {
+			state.params.Ops = new(container.Ops)
+		}, []stub.Call{
+			// this op configures the container state and does not make calls during toContainer
+		}, spAccountOp{}, &container.Params{
+			Dir: config.Container.Home,
+			Ops: new(container.Ops).
+				Place(m("/etc/passwd"), []byte("chronos:x:1000:100:Hakurei:/data/data/org.chromium.Chromium:/run/current-system/sw/bin/zsh\n")).
+				Place(m("/etc/group"), []byte("hakurei:x:100:\n")),
+		}, func(t *testing.T, state *outcomeStateParams) {
+			wantEnv := map[string]string{
+				"HOME":  config.Container.Home.String(),
+				"USER":  config.Container.Username,
+				"SHELL": config.Container.Shell.String(),
+			}
+			maps.Copy(wantEnv, config.Container.Env)
+			if !maps.Equal(state.env, wantEnv) {
+				t.Errorf("toContainer: env = %#v, want %#v", state.env, wantEnv)
+			}
+		}, nil},
+
+		{"success", func() outcomeOp { return spAccountOp{} }, hst.Template, nil, []stub.Call{
+			// this op performs basic validation and does not make calls during toSystem
+		}, spAccountOp{}, system.New(t.Context(), message.NewMsg(nil), checkExpectUid), nil, nil, func(state *outcomeStateParams) {
+			state.params.Ops = new(container.Ops)
+		}, []stub.Call{
+			// this op configures the container state and does not make calls during toContainer
+		}, spAccountOp{}, &container.Params{
+			Dir: config.Container.Home,
+			Ops: new(container.Ops).
+				Place(m("/etc/passwd"), []byte("chronos:x:1000:100:Hakurei:/data/data/org.chromium.Chromium:/run/current-system/sw/bin/zsh\n")).
+				Place(m("/etc/group"), []byte("hakurei:x:100:\n")),
+		}, func(t *testing.T, state *outcomeStateParams) {
+			wantEnv := map[string]string{
+				"HOME":  config.Container.Home.String(),
+				"USER":  config.Container.Username,
+				"SHELL": config.Container.Shell.String(),
+			}
+			maps.Copy(wantEnv, config.Container.Env)
+			if !maps.Equal(state.env, wantEnv) {
+				t.Errorf("toContainer: env = %#v, want %#v", state.env, wantEnv)
+			}
+		}, nil},
+	})
+}