chunk serialization

level/packet_test.go

@@ -0,0 +1,62 @@
+package level_test
+
+import (
+	"bytes"
+	"slices"
+	"testing"
+
+	"github.com/admin-else/strom/data"
+	"github.com/admin-else/strom/level"
+	"github.com/admin-else/strom/util"
+)
+
+var RedMushroomBlock = util.MustOk(data.LookupBlockByName("1.21.11", "red_mushroom_block"))
+var TheVoid = util.MustOk(data.LookupBiomeByName("1.21.11", "the_void"))
+
+func TestPackSections(t *testing.T) {
+	blocks := util.MakeSingleValuedSlice(RedMushroomBlock.DefaultState, level.BlocksPerChunkSection)
+	biomes := util.MakeSingleValuedSlice(TheVoid.Id, level.BiomesPerChunkSection)
+
+	b := bytes.NewBuffer(nil)
+	err := level.PackSection(blocks, biomes, b)
+	if err != nil {
+		t.Fatal(err)
+		return
+	}
+}
+
+func TestDataLongsTest(t *testing.T) {
+	var bpes = []int32{1, 2, 3, 4, 5, 10, 31}
+	var testValues = [][]int32{{1}, {1, 2}, {1, 2, 3}, {1, 2, 3, 4}, {1, 2, 3, 4, 5}, {999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999, 999}}
+
+	for _, bpe := range bpes {
+		maxValue := int32((1 << bpe) - 1)
+		t.Logf("BPE: %v, Maxvalue: %v", bpe, maxValue)
+		for _, values := range testValues {
+			t.Logf("Data: %v", values)
+
+			skip := false
+			for _, v := range values {
+				if v >= maxValue {
+					skip = true
+					break
+				}
+			}
+			if skip {
+				t.Log("Skipping because of overflow")
+				continue
+			}
+
+			longs := level.DataToLongs(values, bpe)
+
+			t.Logf("Longs: %v", longs)
+
+			dataNew := level.LongsToData(longs, int32(len(values)), bpe)
+
+			if !slices.Equal(values, dataNew) {
+				t.Error("Data is not equal")
+			}
+			t.Log("Data conversion successful")
+		}
+	}
+}