From 5dfbb1137405a3e0c5bfe8ac31e02a940668d1d6 Mon Sep 17 00:00:00 2001
From: "Mr. Z" <mrz1836@users.noreply.github.com>
Date: Thu, 3 Jul 2025 21:51:40 -0400
Subject: [PATCH] test(txmap): add delete coverage for SplitSwissMapUint64

---
 split_swiss_map_uint64_delete_test.go | 44 +++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 split_swiss_map_uint64_delete_test.go

diff --git a/split_swiss_map_uint64_delete_test.go b/split_swiss_map_uint64_delete_test.go
new file mode 100644
index 0000000..eb05beb
--- /dev/null
+++ b/split_swiss_map_uint64_delete_test.go
@@ -0,0 +1,44 @@
+package txmap
+
+import (
+	"testing"
+
+	"github.com/bsv-blockchain/go-bt/v2/chainhash"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestSplitSwissMapUint64_Delete(t *testing.T) {
+	t.Run("bucket does not exist", func(t *testing.T) {
+		m := NewSplitSwissMapUint64(10)
+		h := chainhash.Hash{0x00, 0x01}
+		bucket := Bytes2Uint16Buckets(h, m.nrOfBuckets)
+		delete(m.m, bucket)
+
+		err := m.Delete(h)
+		require.Error(t, err)
+		assert.ErrorIs(t, err, ErrBucketDoesNotExist)
+	})
+
+	t.Run("hash does not exist", func(t *testing.T) {
+		m := NewSplitSwissMapUint64(10)
+		h := chainhash.Hash{0x02, 0x01}
+
+		err := m.Delete(h)
+		require.Error(t, err)
+		assert.ErrorIs(t, err, ErrHashDoesNotExist)
+	})
+
+	t.Run("success", func(t *testing.T) {
+		m := NewSplitSwissMapUint64(10)
+		h := chainhash.Hash{0x03, 0x01}
+
+		require.NoError(t, m.Put(h, 1))
+		assert.Equal(t, 1, m.Length())
+
+		err := m.Delete(h)
+		require.NoError(t, err)
+		assert.False(t, m.Exists(h))
+		assert.Equal(t, 0, m.Length())
+	})
+}