refactor(proxy-client): упростить установщик пакета и shell-тесты

- install.sh ставит три прямые ссылки без Stow; чужие файлы не трогает
  и перечисляет все конфликты сразу; ~/.local и ~/.config могут быть
  ссылками; блок в ~/.bashrc дописывается, если нет маркера.
- proxy_on читает вывод proxy-client env без временного файла.
- Тесты Bash-функций работают через поддельный PROXY_CLIENT_BIN.
- test_proxy_client_full.sh запускает только тесты proxy-client,
  прогон под Python 3.8 — если есть uv.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

tests/test_proxy_client_install.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+# Тесты пакетного установщика proxy-client/install.sh во временном HOME.
 set -euo pipefail
 
 REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
@@ -10,393 +11,168 @@ fail() {
   exit 1
 }
 
+ok() {
+  echo "ok - $*"
+}
+
 assert_link_points_to() {
-  local link_path="$1" expected_path="$2" actual_path
-  [ -L "$link_path" ] || fail "Expected symlink: $link_path"
-  actual_path="$(readlink -f "$link_path")"
-  [ "$actual_path" = "$expected_path" ] \
-    || fail "$link_path points to $actual_path, expected $expected_path"
+  local link_path="$1" expected_path="$2"
+  [ -L "$link_path" ] || fail "нет ссылки $link_path"
+  [ "$(readlink -f "$link_path")" = "$expected_path" ] \
+    || fail "$link_path указывает не на $expected_path"
 }
 
 assert_not_exists() {
-  local path="$1"
-  [ ! -e "$path" ] && [ ! -L "$path" ] || fail "Path should not exist: $path"
+  [ ! -e "$1" ] && [ ! -L "$1" ] || fail "путь не должен существовать: $1"
 }
 
-setup_package() {
-  local fixture_root="$1" package_dir="$fixture_root/source with spaces/proxy-client"
-  mkdir -p \
-    "$package_dir/.local/bin" \
-    "$package_dir/.config/proxy-client"
-  cp -a \
-    "$REPO_ROOT/proxy-client/.local/bin/proxy-client" \
-    "$package_dir/.local/bin/proxy-client"
-  cp -a \
-    "$REPO_ROOT/proxy-client/.config/proxy-client/shell.bash" \
-    "$REPO_ROOT/proxy-client/.config/proxy-client/examples" \
-    "$package_dir/.config/proxy-client/"
-  cp -a \
-    "$REPO_ROOT/proxy-client/.stow-local-ignore" \
-    "$REPO_ROOT/proxy-client/README.md" \
-    "$REPO_ROOT/proxy-client/install.sh" \
-    "$package_dir/"
-  printf '%s\n' 'MACHINE_CONFIG_SENTINEL' > "$package_dir/.config/proxy-client/config"
-  printf '%s\n' 'PRIVATE_PROFILE_SENTINEL' > "$package_dir/.config/proxy-client/default.url"
-  printf '%s\n' "$package_dir"
-}
-
-run_package_install() {
-  local package_dir="$1" home_dir="$2" stow_bin="$3"
-  shift 3
-  (
-    cd "$TEST_TMP_ROOT"
-    HOME="$home_dir" STOW_BIN="$stow_bin" \
-      "$package_dir/install.sh" "$@"
-  )
-}
-
-test_installs_same_public_artifacts_without_stow() {
-  local fixture_root package_dir home_dir output
-  fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-  package_dir="$(setup_package "$fixture_root")"
-  home_dir="$fixture_root/home"
-  mkdir -p "$home_dir"
-
-  output="$(
-    run_package_install "$package_dir" "$home_dir" missing-stow --no-shell-setup
-  )"
-
-  printf '%s' "$output" | grep -Fq 'без Stow' \
-    || fail "Expected direct-symlink method in output"
-  printf '%s' "$output" | grep -Fq \
-    'export PATH="$HOME/.local/bin:$PATH"; source ~/.config/proxy-client/shell.bash' \
-    || fail "Expected complete current-session hint with --no-shell-setup"
-  [ -d "$home_dir/.local/bin" ] && [ ! -L "$home_dir/.local/bin" ] \
-    || fail "Expected ~/.local/bin to be a real directory"
-  [ -d "$home_dir/.config/proxy-client" ] \
-    && [ ! -L "$home_dir/.config/proxy-client" ] \
-    || fail "Expected proxy-client config home to be a real directory"
-  assert_link_points_to \
-    "$home_dir/.local/bin/proxy-client" \
-    "$package_dir/.local/bin/proxy-client"
-  assert_link_points_to \
-    "$home_dir/.config/proxy-client/shell.bash" \
-    "$package_dir/.config/proxy-client/shell.bash"
-  assert_link_points_to \
-    "$home_dir/.config/proxy-client/examples" \
-    "$package_dir/.config/proxy-client/examples"
-  assert_not_exists "$home_dir/.config/proxy-client/config"
-  assert_not_exists "$home_dir/.config/proxy-client/default.url"
-  assert_not_exists "$home_dir/README.md"
-  assert_not_exists "$home_dir/install.sh"
-  assert_not_exists "$home_dir/.bashrc"
-}
-
-test_configures_bash_once_by_default() {
-  local fixture_root package_dir home_dir output marker_count path_count source_count
-  fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-  package_dir="$(setup_package "$fixture_root")"
-  home_dir="$fixture_root/home"
-  mkdir -p "$home_dir"
-
-  run_package_install "$package_dir" "$home_dir" missing-stow >/dev/null
-  output="$(run_package_install "$package_dir" "$home_dir" missing-stow)"
-
-  marker_count="$(grep -Fxc '# >>> proxy-client >>>' "$home_dir/.bashrc")"
-  path_count="$(grep -Fc 'export PATH="$HOME/.local/bin:$PATH"' "$home_dir/.bashrc")"
-  source_count="$(
-    grep -Fc \
-      '[ -f "$HOME/.config/proxy-client/shell.bash" ] && source "$HOME/.config/proxy-client/shell.bash"' \
-      "$home_dir/.bashrc"
-  )"
-  [ "$marker_count" -eq 1 ] || fail "Expected one managed Bash block"
-  [ "$path_count" -eq 1 ] || fail "Expected one ~/.local/bin PATH line"
-  [ "$source_count" -eq 1 ] || fail "Expected one shell module source line"
-  printf '%s' "$output" | grep -Fq 'source ~/.bashrc' \
-    || fail "Expected current-session reload hint"
-}
-
-test_installs_same_public_artifacts_with_stow() {
-  local fixture_root package_dir home_dir output
-  fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-  package_dir="$(setup_package "$fixture_root")"
-  home_dir="$fixture_root/home"
-  mkdir -p "$home_dir"
-
-  output="$(run_package_install "$package_dir" "$home_dir" stow --no-shell-setup)"
-
-  printf '%s' "$output" | grep -Fq 'с помощью Stow' \
-    || fail "Expected Stow method in output"
-  [ -d "$home_dir/.local/bin" ] && [ ! -L "$home_dir/.local/bin" ] \
-    || fail "Expected ~/.local/bin to be a real directory"
-  [ -d "$home_dir/.config/proxy-client" ] \
-    && [ ! -L "$home_dir/.config/proxy-client" ] \
-    || fail "Expected proxy-client config home to be a real directory"
-  assert_link_points_to \
-    "$home_dir/.local/bin/proxy-client" \
-    "$package_dir/.local/bin/proxy-client"
-  assert_link_points_to \
-    "$home_dir/.config/proxy-client/shell.bash" \
-    "$package_dir/.config/proxy-client/shell.bash"
-  assert_link_points_to \
-    "$home_dir/.config/proxy-client/examples" \
-    "$package_dir/.config/proxy-client/examples"
-  assert_not_exists "$home_dir/.config/proxy-client/config"
-  assert_not_exists "$home_dir/.config/proxy-client/default.url"
-  assert_not_exists "$home_dir/README.md"
-  assert_not_exists "$home_dir/install.sh"
-}
-
-test_rejects_linked_parent_directories_before_changes() {
-  local fixture_root package_dir home_dir external_local external_config output
-  fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-  package_dir="$(setup_package "$fixture_root")"
-  home_dir="$fixture_root/home"
-  external_local="$fixture_root/external-local"
-  external_config="$fixture_root/external-config"
-  mkdir -p "$home_dir" "$external_local" "$external_config"
-  ln -s "$external_local" "$home_dir/.local"
-  ln -s "$external_config" "$home_dir/.config"
-
-  if output="$(
-    run_package_install "$package_dir" "$home_dir" missing-stow 2>&1
-  )"; then
-    fail "Expected linked parent directories to be rejected"
-  fi
-
-  printf '%s' "$output" | grep -Fq "$home_dir/.local" \
-    || fail "Expected ~/.local conflict in output"
-  printf '%s' "$output" | grep -Fq "$home_dir/.config" \
-    || fail "Expected ~/.config conflict in output"
-  assert_not_exists "$external_local/bin"
-  assert_not_exists "$external_config/proxy-client"
-  assert_not_exists "$home_dir/.bashrc"
-}
-
-test_reports_all_target_conflicts_without_partial_install() {
-  local fixture_root package_dir home_dir other_target output
-  fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-  package_dir="$(setup_package "$fixture_root")"
-  home_dir="$fixture_root/home"
-  other_target="$fixture_root/other-target"
-  mkdir -p "$home_dir/.local/bin" "$home_dir/.config/proxy-client/shell.bash"
-  printf '%s\n' 'KEEP_CLI' > "$home_dir/.local/bin/proxy-client"
-  printf '%s\n' 'KEEP_TARGET' > "$other_target"
-  ln -s "$other_target" "$home_dir/.config/proxy-client/examples"
-
-  if output="$(
-    run_package_install "$package_dir" "$home_dir" missing-stow 2>&1
-  )"; then
-    fail "Expected all target conflicts to be rejected"
-  fi
-
-  printf '%s' "$output" | grep -Fq "$home_dir/.local/bin/proxy-client" \
-    || fail "Expected CLI conflict in output"
-  printf '%s' "$output" | grep -Fq "$home_dir/.config/proxy-client/shell.bash" \
-    || fail "Expected shell module conflict in output"
-  printf '%s' "$output" | grep -Fq "$home_dir/.config/proxy-client/examples" \
-    || fail "Expected examples conflict in output"
-  grep -Fq 'KEEP_CLI' "$home_dir/.local/bin/proxy-client" \
-    || fail "Expected conflicting CLI file to stay unchanged"
-  [ -d "$home_dir/.config/proxy-client/shell.bash" ] \
-    || fail "Expected conflicting shell directory to stay unchanged"
-  assert_link_points_to "$home_dir/.config/proxy-client/examples" "$other_target"
-  assert_not_exists "$home_dir/.bashrc"
-}
-
-test_rejects_broken_link_without_creating_other_targets() {
-  local fixture_root package_dir home_dir output
-  fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-  package_dir="$(setup_package "$fixture_root")"
-  home_dir="$fixture_root/home"
-  mkdir -p "$home_dir/.local/bin"
-  ln -s "$fixture_root/missing-cli" "$home_dir/.local/bin/proxy-client"
-
-  if output="$(
-    run_package_install "$package_dir" "$home_dir" missing-stow 2>&1
-  )"; then
-    fail "Expected broken target link to be rejected"
-  fi
-
-  printf '%s' "$output" | grep -Fq "$home_dir/.local/bin/proxy-client" \
-    || fail "Expected broken CLI link in output"
-  [ -L "$home_dir/.local/bin/proxy-client" ] \
-    || fail "Expected broken CLI link to stay unchanged"
-  assert_not_exists "$home_dir/.config"
-  assert_not_exists "$home_dir/.bashrc"
-}
-
-test_preserves_machine_files_with_both_methods() {
-  local stow_bin fixture_root package_dir home_dir
-  for stow_bin in missing-stow stow; do
-    fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-    package_dir="$(setup_package "$fixture_root")"
-    home_dir="$fixture_root/home"
-    mkdir -p "$home_dir/.config/proxy-client"
-    printf '%s\n' 'HOME_CONFIG_SENTINEL' \
-      > "$home_dir/.config/proxy-client/config"
-    printf '%s\n' 'HOME_PROFILE_SENTINEL' \
-      > "$home_dir/.config/proxy-client/default.url"
-
-    run_package_install "$package_dir" "$home_dir" "$stow_bin" \
-      --no-shell-setup >/dev/null
-
-    [ ! -L "$home_dir/.config/proxy-client/config" ] \
-      || fail "Machine config must not become a symlink"
-    [ ! -L "$home_dir/.config/proxy-client/default.url" ] \
-      || fail "Private profile must not become a symlink"
-    grep -Fq 'HOME_CONFIG_SENTINEL' "$home_dir/.config/proxy-client/config" \
-      || fail "Machine config changed"
-    grep -Fq 'HOME_PROFILE_SENTINEL' "$home_dir/.config/proxy-client/default.url" \
-      || fail "Private profile changed"
+assert_package_links() {
+  local package_dir="$1" home_dir="$2" link
+  for link in .local/bin/proxy-client .config/proxy-client/shell.bash \
+              .config/proxy-client/examples; do
+    assert_link_points_to "$home_dir/$link" "$package_dir/$link"
   done
 }
 
-test_accepts_existing_links_when_method_changes() {
-  local fixture_root package_dir home_dir
-  fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-  package_dir="$(setup_package "$fixture_root")"
-  home_dir="$fixture_root/home"
-  mkdir -p "$home_dir"
-
-  run_package_install "$package_dir" "$home_dir" missing-stow \
-    --no-shell-setup >/dev/null
-  run_package_install "$package_dir" "$home_dir" stow \
-    --no-shell-setup >/dev/null
-
-  assert_link_points_to \
-    "$home_dir/.local/bin/proxy-client" \
-    "$package_dir/.local/bin/proxy-client"
-  assert_link_points_to \
-    "$home_dir/.config/proxy-client/shell.bash" \
-    "$package_dir/.config/proxy-client/shell.bash"
-  assert_link_points_to \
-    "$home_dir/.config/proxy-client/examples" \
-    "$package_dir/.config/proxy-client/examples"
+# Копия пакета в пути с пробелами и машинными файлами, которые установщик
+# не должен трогать. Печатает путь к пакету; HOME создаётся рядом.
+new_fixture() {
+  local fixture package_dir
+  fixture="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
+  package_dir="$fixture/source with spaces/proxy-client"
+  mkdir -p "$package_dir" "$fixture/home"
+  cp -a "$REPO_ROOT/proxy-client/." "$package_dir/"
+  printf 'MACHINE_CONFIG_SENTINEL\n' > "$package_dir/.config/proxy-client/config"
+  printf 'PRIVATE_PROFILE_SENTINEL\n' > "$package_dir/.config/proxy-client/default.url"
+  printf '%s\n' "$fixture"
 }
 
-test_stow_completes_partial_correct_installation() {
-  local fixture_root package_dir home_dir
-  fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-  package_dir="$(setup_package "$fixture_root")"
-  home_dir="$fixture_root/home"
-  mkdir -p "$home_dir"
-
-  run_package_install "$package_dir" "$home_dir" missing-stow \
-    --no-shell-setup >/dev/null
-  rm "$home_dir/.config/proxy-client/shell.bash"
-
-  run_package_install "$package_dir" "$home_dir" stow \
-    --no-shell-setup >/dev/null
-
-  assert_link_points_to \
-    "$home_dir/.local/bin/proxy-client" \
-    "$package_dir/.local/bin/proxy-client"
-  assert_link_points_to \
-    "$home_dir/.config/proxy-client/shell.bash" \
-    "$package_dir/.config/proxy-client/shell.bash"
-  assert_link_points_to \
-    "$home_dir/.config/proxy-client/examples" \
-    "$package_dir/.config/proxy-client/examples"
+run_install() {
+  local fixture="$1"
+  shift
+  (cd "$TEST_TMP_ROOT" && HOME="$fixture/home" \
+    "$fixture/source with spaces/proxy-client/install.sh" "$@")
 }
 
-test_does_not_duplicate_full_dotfiles_shell_setup() {
-  local fixture_root package_dir home_dir source_count
-  fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-  package_dir="$(setup_package "$fixture_root")"
-  home_dir="$fixture_root/home"
-  mkdir -p "$home_dir"
-  printf '%s\n' \
-    '[ -f ~/.config/proxy-client/shell.bash ] && source ~/.config/proxy-client/shell.bash' \
-    > "$home_dir/.bash_custom"
-  printf '%s\n' '[ -f ~/.bash_custom ] && source ~/.bash_custom' \
-    > "$home_dir/.bashrc"
-
-  run_package_install "$package_dir" "$home_dir" missing-stow >/dev/null
-
-  grep -Fq '# >>> proxy-client >>>' "$home_dir/.bashrc" \
-    || fail "Expected managed PATH block with full dotfiles"
-  grep -Fq 'export PATH="$HOME/.local/bin:$PATH"' "$home_dir/.bashrc" \
-    || fail "Expected ~/.local/bin setup with full dotfiles"
-  source_count="$(grep -Fc 'proxy-client/shell.bash' "$home_dir/.bashrc" || true)"
-  [ "$source_count" -eq 0 ] \
-    || fail "Standalone block duplicated full dotfiles module source"
+home_snapshot() {
+  find "$1" -printf '%p %y %l %s %T@\n' | sort
 }
 
-test_rejects_damaged_managed_bash_block_before_changes() {
-  local fixture_root package_dir home_dir output
-  fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-  package_dir="$(setup_package "$fixture_root")"
-  home_dir="$fixture_root/home"
-  mkdir -p "$home_dir"
-  printf '%s\n' '# >>> proxy-client >>>' > "$home_dir/.bashrc"
+test_fresh_install() {
+  local fixture home_dir package_dir output
+  fixture="$(new_fixture)"
+  home_dir="$fixture/home"
+  package_dir="$fixture/source with spaces/proxy-client"
 
-  if output="$(
-    run_package_install "$package_dir" "$home_dir" missing-stow 2>&1
-  )"; then
-    fail "Expected damaged managed Bash block to be rejected"
+  run_install "$fixture" >/dev/null
+
+  assert_package_links "$package_dir" "$home_dir"
+  [ -x "$home_dir/.local/bin/proxy-client" ] || fail "CLI не исполняемый"
+  assert_not_exists "$home_dir/.config/proxy-client/config"
+  assert_not_exists "$home_dir/.config/proxy-client/default.url"
+  output="$(
+    env -i HOME="$home_dir" PATH=/usr/bin:/bin TERM=dumb bash -ic '
+      command -v proxy-client && declare -F proxy_on
+    ' 2>/dev/null
+  )"
+  [ "$output" = "$home_dir/.local/bin/proxy-client"$'\n'proxy_on ] \
+    || fail "новый Bash не нашёл proxy-client и proxy_on: $output"
+  ok "свежая установка: три ссылки и рабочий блок в ~/.bashrc"
+}
+
+test_repeat_changes_nothing() {
+  local fixture home_dir before
+  fixture="$(new_fixture)"
+  home_dir="$fixture/home"
+  run_install "$fixture" >/dev/null
+  before="$(home_snapshot "$home_dir")"
+
+  run_install "$fixture" >/dev/null
+
+  [ "$(home_snapshot "$home_dir")" = "$before" ] \
+    || fail "повторный запуск изменил HOME"
+  ok "повторный запуск ничего не меняет"
+}
+
+test_conflicts_block_whole_install() {
+  local fixture home_dir output
+  fixture="$(new_fixture)"
+  home_dir="$fixture/home"
+  mkdir -p "$home_dir/.local/bin" "$home_dir/.config/proxy-client"
+  printf 'KEEP_CLI\n' > "$home_dir/.local/bin/proxy-client"
+  ln -s "$fixture/missing" "$home_dir/.config/proxy-client/examples"
+
+  if output="$(run_install "$fixture" 2>&1)"; then
+    fail "установка прошла поверх чужих файлов"
   fi
 
-  printf '%s' "$output" | grep -Fq "$home_dir/.bashrc" \
-    || fail "Expected ~/.bashrc conflict in output"
-  [ "$(wc -l < "$home_dir/.bashrc")" -eq 1 ] \
-    || fail "Expected damaged Bash block to stay unchanged"
-  assert_not_exists "$home_dir/.local"
-  assert_not_exists "$home_dir/.config"
-}
-
-test_does_not_duplicate_existing_local_bin_path() {
-  local fixture_root package_dir home_dir path_count source_count
-  fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-  package_dir="$(setup_package "$fixture_root")"
-  home_dir="$fixture_root/home"
-  mkdir -p "$home_dir"
-  printf '%s\n' 'export PATH="$HOME/.local/bin:$PATH"' > "$home_dir/.bashrc"
-
-  run_package_install "$package_dir" "$home_dir" missing-stow >/dev/null
-
-  path_count="$(grep -Fc 'export PATH="$HOME/.local/bin:$PATH"' "$home_dir/.bashrc")"
-  source_count="$(grep -Fc 'proxy-client/shell.bash' "$home_dir/.bashrc")"
-  [ "$path_count" -eq 1 ] || fail "Existing ~/.local/bin PATH line was duplicated"
-  [ "$source_count" -eq 1 ] || fail "Expected shell module source in managed block"
-}
-
-test_rejects_incomplete_source_before_changes() {
-  local fixture_root package_dir home_dir output
-  fixture_root="$(mktemp -d "$TEST_TMP_ROOT/fixture.XXXXXX")"
-  package_dir="$(setup_package "$fixture_root")"
-  home_dir="$fixture_root/home"
-  mkdir -p "$home_dir"
-  rm "$package_dir/.config/proxy-client/shell.bash"
-
-  if output="$(
-    run_package_install "$package_dir" "$home_dir" missing-stow 2>&1
-  )"; then
-    fail "Expected incomplete source package to be rejected"
-  fi
-
-  printf '%s' "$output" | grep -Fq 'исходного пакета' \
-    || fail "Expected source package error"
-  assert_not_exists "$home_dir/.local"
-  assert_not_exists "$home_dir/.config"
+  printf '%s' "$output" | grep -Fq "$home_dir/.local/bin/proxy-client" \
+    || fail "не назван конфликт CLI"
+  printf '%s' "$output" | grep -Fq "$home_dir/.config/proxy-client/examples" \
+    || fail "не названа битая ссылка"
+  grep -Fqx KEEP_CLI "$home_dir/.local/bin/proxy-client" \
+    || fail "чужой CLI изменён"
+  [ "$(readlink "$home_dir/.config/proxy-client/examples")" = "$fixture/missing" ] \
+    || fail "битая ссылка изменена"
+  assert_not_exists "$home_dir/.config/proxy-client/shell.bash"
   assert_not_exists "$home_dir/.bashrc"
+  ok "все конфликты названы сразу, частичной установки нет"
 }
 
-main() {
-  test_installs_same_public_artifacts_without_stow
-  test_configures_bash_once_by_default
-  test_installs_same_public_artifacts_with_stow
-  test_rejects_linked_parent_directories_before_changes
-  test_reports_all_target_conflicts_without_partial_install
-  test_rejects_broken_link_without_creating_other_targets
-  test_preserves_machine_files_with_both_methods
-  test_accepts_existing_links_when_method_changes
-  test_stow_completes_partial_correct_installation
-  test_does_not_duplicate_full_dotfiles_shell_setup
-  test_rejects_damaged_managed_bash_block_before_changes
-  test_does_not_duplicate_existing_local_bin_path
-  test_rejects_incomplete_source_before_changes
-  echo "All standalone proxy-client install tests passed"
+test_keeps_machine_files() {
+  local fixture home_dir
+  fixture="$(new_fixture)"
+  home_dir="$fixture/home"
+  mkdir -p "$home_dir/.config/proxy-client"
+  printf 'HOME_CONFIG\n' > "$home_dir/.config/proxy-client/config"
+  printf 'HOME_PROFILE\n' > "$home_dir/.config/proxy-client/default.url"
+
+  run_install "$fixture" --no-shell-setup >/dev/null
+
+  [ ! -L "$home_dir/.config/proxy-client/config" ] || fail "config стал ссылкой"
+  [ ! -L "$home_dir/.config/proxy-client/default.url" ] \
+    || fail "default.url стал ссылкой"
+  grep -Fqx HOME_CONFIG "$home_dir/.config/proxy-client/config" \
+    || fail "машинный config изменён"
+  grep -Fqx HOME_PROFILE "$home_dir/.config/proxy-client/default.url" \
+    || fail "default.url изменён"
+  ok "машинные config и default.url не трогаются"
 }
 
-main "$@"
+test_no_shell_setup() {
+  local fixture home_dir output
+  fixture="$(new_fixture)"
+  home_dir="$fixture/home"
+
+  output="$(run_install "$fixture" --no-shell-setup)"
+
+  assert_not_exists "$home_dir/.bashrc"
+  printf '%s' "$output" | grep -Fq 'proxy-client/shell.bash' \
+    || fail "нет подсказки для текущей сессии"
+  ok "--no-shell-setup не трогает ~/.bashrc"
+}
+
+test_linked_parent_directories() {
+  local fixture home_dir package_dir
+  fixture="$(new_fixture)"
+  home_dir="$fixture/home"
+  package_dir="$fixture/source with spaces/proxy-client"
+  mkdir -p "$fixture/external-local" "$fixture/external-config"
+  ln -s "$fixture/external-local" "$home_dir/.local"
+  ln -s "$fixture/external-config" "$home_dir/.config"
+
+  run_install "$fixture" --no-shell-setup >/dev/null
+
+  assert_package_links "$package_dir" "$home_dir"
+  [ -L "$fixture/external-local/bin/proxy-client" ] \
+    || fail "ссылка не попала в каталог, на который указывает ~/.local"
+  ok "каталоги ~/.local и ~/.config могут быть ссылками"
+}
+
+test_fresh_install
+test_repeat_changes_nothing
+test_conflicts_block_whole_install
+test_keeps_machine_files
+test_no_shell_setup
+test_linked_parent_directories
+echo "PASS: тесты установщика proxy-client"