#!/bin/sh
# tests/run.sh - test runner for stupidtools (skeleton).
#
# Grows with the project; today it proves the toolchain works end to end:
# the binary must exist, run, and report its version.
#
# POSIX sh only (dash/bash/zsh safe). Fails fast on the first failed check.

TOP_DIR=$(cd "$(dirname "$0")/.." && pwd) || {
    echo "FAIL: cannot resolve project root" >&2
    exit 1
}
BIN="$TOP_DIR/src/stupidtools"

TESTS_RUN=0
TESTS_FAILED=0

pass() {
    TESTS_RUN=$((TESTS_RUN + 1))
    printf 'ok %d - %s\n' "$TESTS_RUN" "$1"
}

fail() {
    TESTS_RUN=$((TESTS_RUN + 1))
    TESTS_FAILED=$((TESTS_FAILED + 1))
    printf 'not ok %d - %s\n' "$TESTS_RUN" "$1" >&2
}

# --- 1. the built binary must exist and be executable -------------------
if [ -x "$BIN" ]; then
    pass "binary exists and is executable: $BIN"
else
    fail "binary missing: $BIN (run 'make' first)"
    printf 'FAILED: %d/%d checks failed\n' "$TESTS_FAILED" "$TESTS_RUN" >&2
    exit 1
fi

# --- 2. --version must exit 0 and print exactly 'stupidtools <version>' -
version_out=
if version_out=$("$BIN" --version 2>&1); then
    if [ "$version_out" = "stupidtools 1.0.0" ]; then
        pass "--version reports: $version_out"
    else
        fail "--version output unexpected: '$version_out' (want 'stupidtools 1.0.0')"
    fi
else
    rc=$?
    fail "--version exited non-zero (rc=$rc): $version_out"
fi

# --- summary -------------------------------------------------------------
if [ "$TESTS_FAILED" -ne 0 ]; then
    printf 'FAILED: %d/%d checks failed\n' "$TESTS_FAILED" "$TESTS_RUN" >&2
    exit 1
fi
printf 'All %d checks passed.\n' "$TESTS_RUN"