Reset master to testing content

internal/config/greeter_test.go

@@ -0,0 +1,110 @@
+// Copyright (c) 2026 Storm Dragon
+// Authors: Storm Dragon, Angus Kola
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package config
+
+import (
+	"bytes"
+	"os"
+	"path/filepath"
+	"reflect"
+	"strings"
+	"testing"
+)
+
+func TestGreeterCopyUsesOnlyEffectiveActiveProfile(t *testing.T) {
+	directory := t.TempDir()
+	sourcePath := filepath.Join(directory, "source.toml")
+	contents := []byte("schema-version = 2\nactive-profile = 'custom'\n" +
+		"[profiles.custom.speech.default-voice]\nrate = 73.0\n" +
+		"[profiles.custom.keyboard]\nlayout = 2\nscreen-reader-keys = ['Caps_Lock']\n" +
+		"[profiles.custom.braille]\nenabled = true\n" +
+		"[profiles.application.speech]\nenabled = false\n" +
+		"[applications]\n'example-editor' = 'application'\n")
+	if err := os.WriteFile(sourcePath, contents, 0o600); err != nil {
+		t.Fatal(err)
+	}
+	settings, err := Load(sourcePath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	targetPath := filepath.Join(directory, "greeter.toml")
+	// Repeated exports must replace stale profiles and mappings too.
+	if err := os.WriteFile(targetPath, contents, 0o644); err != nil {
+		t.Fatal(err)
+	}
+	if err := WriteGreeterSettings(targetPath, settings); err != nil {
+		t.Fatal(err)
+	}
+	exported, err := Load(targetPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	settings.Path, settings.ActiveProfile = targetPath, "greeter"
+	if !reflect.DeepEqual(exported, settings) {
+		t.Fatalf("export changed effective settings: got %#v, want %#v", exported, settings)
+	}
+	data, _ := os.ReadFile(targetPath)
+	document, _, err := decodeDocument(data)
+	if err != nil || len(document.Profiles) != 1 || len(document.Applications) != 0 {
+		t.Fatalf("export retained other profiles: %+v, %v", document, err)
+	}
+	info, _ := os.Stat(targetPath)
+	if info.Mode().Perm() != 0o600 {
+		t.Fatalf("export permissions = %o", info.Mode().Perm())
+	}
+	unchanged, _ := os.ReadFile(sourcePath)
+	if string(unchanged) != string(contents) {
+		t.Fatal("export changed source settings")
+	}
+}
+
+func TestGreeterPipeRejectsInvalidOrOversizedSettings(t *testing.T) {
+	for _, contents := range []string{"", "schema-version = 999", strings.Repeat(" ", maxConfigSize+1)} {
+		if _, err := ReadGreeterSettings(strings.NewReader(contents)); err == nil {
+			t.Fatal("accepted invalid or oversized settings pipe")
+		}
+	}
+	settings := DefaultSettings()
+	settings.EnableEchoByWord = true
+	contents, err := GreeterSettings(settings)
+	if err != nil {
+		t.Fatal(err)
+	}
+	copied, err := ReadGreeterSettings(bytes.NewReader(contents))
+	if err != nil || copied.ActiveProfile != "greeter" || !copied.EnableEchoByWord {
+		t.Fatalf("pipe round trip = %#v, error %v", copied, err)
+	}
+}
+
+func TestGreeterCopyPreservesSourceAndExistingOutputOnFailure(t *testing.T) {
+	directory := t.TempDir()
+	source := filepath.Join(directory, "source.toml")
+	if err := os.WriteFile(source, []byte("original"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	settings := DefaultSettings()
+	settings.Path = source
+	alias := filepath.Join(directory, "alias.toml")
+	if err := os.Symlink(source, alias); err != nil {
+		t.Fatal(err)
+	}
+	for _, path := range []string{source, alias} {
+		if err := WriteGreeterSettings(path, settings); err == nil {
+			t.Fatal("export replaced its own source")
+		}
+	}
+	target := filepath.Join(directory, "target.toml")
+	if err := os.WriteFile(target, []byte("previous export"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	settings.SoundVolume = 2.0
+	if err := WriteGreeterSettings(target, settings); err == nil {
+		t.Fatal("invalid settings were exported")
+	}
+	data, _ := os.ReadFile(target)
+	if string(data) != "previous export" {
+		t.Fatal("failed export changed existing output")
+	}
+}