Calculate and verify ROM checksum

gb/cartridge_test.go

@@ -0,0 +1,31 @@
+package gb
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestInsert(t *testing.T) {
+	cartridge, err := InsertCartridge("../roms/dmg-acid2.gb")
+
+	assert := assert.New(t)
+
+	assert.Nil(err)
+	assert.Equal(cartridge.Filename, "../roms/dmg-acid2.gb")
+	assert.Equal(cartridge.Title, "DMG-ACID2")
+	assert.Equal(cartridge.Mapper, "ROM ONLY")
+	assert.Equal(cartridge.Licensee, "None")
+	assert.False(cartridge.SGBSupport, "SGB support should be false")
+	assert.Equal(cartridge.ROMSize, 32)
+	assert.Equal(cartridge.RAMSize, "0 - No RAM")
+	assert.Equal(cartridge.Destination, "Japan (and possibly overseas)")
+	assert.Equal(cartridge.Version, 0)
+	assert.Equal(cartridge.Checksum, byte(0x9F))
+}
+
+func TestFailedChecksum(t *testing.T) {
+	_, err := InsertCartridge("../roms/failed-checksum.gb")
+
+	assert.EqualError(t, err, "ROM checksum failed: 9F does not equal 41")
+}