1 files changed, 48 insertions, 0 deletions
diff --git a/common/crc/crc_test.go b/common/crc/crc_test.go
new file mode 100644
index 0000000..74e77cd
--- /dev/null
+++ b/common/crc/crc_test.go
@@ -0,0 +1,48 @@
+package crc
+
+import (
+	"testing"
+)
+
+type crcTest struct {
+	name     string
+	input    []byte
+	seq      int
+	expected byte
+}
+
+var crcTests = []crcTest{
+	{
+		name:     "sequence 0",
+		input:    []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		seq:      0,
+		expected: 0x2f,
+	},
+	{
+		name:     "sequence 1",
+		input:    []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		seq:      1,
+		expected: 0x2d,
+	},
+	{
+		name:     "sequence 2",
+		input:    []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		seq:      2,
+		expected: 0x37,
+	},
+}
+
+func TestCRCs(t *testing.T) {
+	for _, ct := range crcTests {
+		t.Run(ct.name, func(t *testing.T) {
+			crc := Byte(ct.input, ct.seq)
+
+			if crc != ct.expected {
+				t.Errorf("crc byte didn't match expected")
+				t.Logf("output: %#v", crc)
+				t.Logf("expected: %#v", ct.expected)
+			}
+
+		})
+	}
+}