Add assertion library (testify) and cartridge tests

gb/cartridge_test.go

@@ -0,0 +1,21 @@
+package gb
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestInsertCartridge(t *testing.T) {
+	cartridge := Insert("../rom.gb")
+	assert := assert.New(t)
+
+	assert.Equal(cartridge.Title, "SEIKEN DENSETSU")
+	assert.Equal(cartridge.Mapper, "MBC2+BATTERY")
+	assert.Equal(cartridge.Licensee, "Square")
+	assert.False(cartridge.SGBSupport, "SGB support should be false")
+	assert.Equal(cartridge.ROMSize, 256)
+	assert.Equal(cartridge.RAMSize, "0 - No RAM")
+	assert.Equal(cartridge.Destination, "Overseas only")
+	assert.Equal(cartridge.Version, 0)
+}