bgrep: add test

Closes #26482.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/Library/Formula/bgrep.rb b/Library/Formula/bgrep.rb
index f81477247..19fca5142 100644
--- a/Library/Formula/bgrep.rb
+++ b/Library/Formula/bgrep.rb
@@ -9,4 +9,15 @@ class Bgrep < Formula
     system "#{ENV.cc} #{ENV.cflags} -o bgrep bgrep.c"
     bin.install "bgrep"
   end
+
+  test do
+    path = testpath/"hi.prg"
+    code = [0x00, 0xc0, 0xa9, 0x48, 0x20, 0xd2, 0xff,
+            0xa9, 0x49, 0x20, 0xd2, 0xff, 0x60].pack("C*")
+    path.open("wb") { |f| f.write code }
+
+    lines = `#{bin}/bgrep 20d2ff #{path}`.strip.split("\n")
+    assert_equal ["#{path}: 00000004", "#{path}: 00000009"], lines
+    assert_equal 0, $?.exitstatus
+  end
 end