#!/usr/bin/env bash
# Checks that Voyager is the same machine as SplitBit.
#
# They share every line of the machine and differ only in what they present, and the way to
# keep that true is to make the claim testable rather than to promise it in a comment. So
# this runs the WHOLE MANIFEST through Voyager and holds it to the recorded results that
# SplitBit is held to - not that the two look alike, but that one satisfies every recording
# the other does, byte for byte, exit status included.
#
# It reuses Tests/run.sh rather than repeating it. A copy of the runner that drove the other
# binary would drift from this one, and the first thing to go would be whichever awkward
# case was added to only one of them.
#
# Voyager needs a window, and a machine running tests usually has no display, so it is run
# with --headless. That flag exists for this: a front end that could only be exercised by a
# person looking at it would be a front end nothing checks.
#
# Written by Anachronaut

set -u
ROOT="$(cd "$(dirname "$0")/.." && pwd)"

# ---- Not built is not a failure ----
#
# Voyager is built only where Raylib is, and the whole point of the split is that everything
# else works without it. A suite that failed here on a machine with no graphics library
# would be enforcing exactly the dependency the split exists to avoid.
if [ ! -x "$ROOT/Voyager" ]; then
    echo "Voyager is not built, so it was not checked. Raylib is what it needs."
    exit 0
fi

echo "Checking that Voyager is the same machine."
SPLITBIT_EMULATOR="$ROOT/Voyager" SPLITBIT_EMULATOR_ARGS="--headless" "$ROOT/Tests/run.sh" \
    | tail -3
exit "${PIPESTATUS[0]}"