add tests for encoding data tracker fields

internal/encoders/data_tracker_accel_chunk_test.go

@@ -0,0 +1,40 @@
+package encoders
+
+import (
+	"fmt"
+	"reflect"
+	"testing"
+
+	"github.com/jwetzell/psn-go/internal/decoders"
+)
+
+func TestDataTrackerAccelChunkEncoding(t *testing.T) {
+	testCases := []struct {
+		description string
+		expected    []byte
+		data        decoders.DataTrackerXYZChunkData
+	}{
+		{
+			description: "basic acceleration",
+			expected: []byte{
+				4, 0, 12, 0, 0, 0, 128, 63, 0, 0, 0, 64, 0, 0, 64, 64,
+			},
+			data: decoders.DataTrackerXYZChunkData{
+				X: 1,
+				Y: 2,
+				Z: 3,
+			},
+		},
+	}
+
+	for _, testCase := range testCases {
+
+		actual := EncodeDataTrackerAccelChunk(testCase.data.X, testCase.data.Y, testCase.data.Z)
+
+		if !reflect.DeepEqual(actual, testCase.expected) {
+			t.Errorf("Test '%s' failed to encode chunk properly", testCase.description)
+			fmt.Printf("expected: %v\n", testCase.expected)
+			fmt.Printf("actual: %v\n", actual)
+		}
+	}
+}