Introduce end-to-end tests

For now I have added the most simple example for an NES/Famicom game,
which I already had on a private repository (that I plan to open source
soonish).

Tests simply run `nasm` on known source files and compares the results
with an .nes ROM file that has the exact bytes that we expect.

Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/scripts/test-e2e.sh b/scripts/test-e2e.sh
new file mode 100755
index 0000000..32bd76f
--- /dev/null
+++ b/scripts/test-e2e.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env sh
+
+set -ex
+
+rm -rf tests/out/
+mkdir -p tests/out/
+
+cargo build
+
+./target/debug/nasm -c nrom -Werror -o tests/out/sprite.nes tests/src/sprite.s
+diff tests/out/sprite.nes tests/bin/sprite.nes