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#!/usr/bin/env bats
#
# Tests for scripts/install-lang.sh — install a language ruleset into a project.
#
# Strategy: scaffold a fresh git project in a temp dir, run install-lang.sh
# against it. Canonical source stays the real one (install-lang.sh resolves
# languages/ and claude-rules/ relative to its own location).

REAL_REPO="$(cd "$(dirname "$BATS_TEST_FILENAME")/../.." && pwd)"
INSTALL_LANG="$REAL_REPO/scripts/install-lang.sh"

setup() {
  PROJECT="$(mktemp -d -t install-lang-bats.XXXXXX)"
  (cd "$PROJECT" && git init -q)
}

teardown() {
  rm -rf "$PROJECT"
}

@test "install-lang elisp: lands the tooling footprint" {
  run bash "$INSTALL_LANG" elisp "$PROJECT"

  [ "$status" -eq 0 ]
  [ -d "$PROJECT/.claude/rules" ]
  [ -d "$PROJECT/githooks" ]
  [ -f "$PROJECT/CLAUDE.md" ]
  # The coverage-summary script ships inside the gitignored .claude footprint.
  [ -f "$PROJECT/.claude/scripts/coverage-summary.el" ]
}

@test "install-lang elisp: seeds the project-owned coverage Makefile fragment" {
  run bash "$INSTALL_LANG" elisp "$PROJECT"

  [ "$status" -eq 0 ]
  [ -f "$PROJECT/coverage-makefile.txt" ]
}

@test "install-lang elisp: does not overwrite an existing fragment without FORCE" {
  echo "MY OWN VERSION" > "$PROJECT/coverage-makefile.txt"
  run bash "$INSTALL_LANG" elisp "$PROJECT"

  [ "$status" -eq 0 ]
  grep -qxF "MY OWN VERSION" "$PROJECT/coverage-makefile.txt"
}

@test "install-lang elisp: gitignores the full Claude tooling footprint" {
  run bash "$INSTALL_LANG" elisp "$PROJECT"

  [ "$status" -eq 0 ]
  # The whole .claude/, CLAUDE.md, and githooks/ stay out of the project's
  # git history — Claude tooling is delivered by install/sync, never committed.
  grep -qxF ".claude/" "$PROJECT/.gitignore"
  grep -qxF "CLAUDE.md" "$PROJECT/.gitignore"
  grep -qxF "githooks/" "$PROJECT/.gitignore"
  # Elisp byte-compile artifacts.
  grep -qxF "*.elc" "$PROJECT/.gitignore"
  grep -qxF "*.eln" "$PROJECT/.gitignore"
}