implement lzss encoding

1 files changed, 35 insertions, 0 deletions

diff --git a/tests/tmatchtable.nim b/tests/tmatchtable.nim
new file mode 100644
index 0000000..4b21f1d
--- /dev/null
+++ b/tests/tmatchtable.nim
@@ -0,0 +1,35 @@
+# gzip-like LZSS compressor
+# Copyright (C) 2018  Pacien TRAN-GIRARD
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+import unittest, lists, sequtils, tables
+import matchtable
+
+suite "matchtable":
+  test "matchList":
+    let matchTable = initMatchTable(seq[int], int)
+    check toSeq(matchTable.matchList(@[0, 1, 2]).items).len == 0
+
+  test "addMatch":
+    let matchTable = initMatchTable(seq[int], int)
+    matchTable.addMatch(@[0, 1, 2], 42)
+    matchTable.addMatch(@[2, 1, 0], 24)
+    check matchTable.len == 2
+    check toSeq(matchTable.matchList(@[0, 1, 2]).items) == @[42]
+    check toSeq(matchTable.matchList(@[2, 1, 0]).items) == @[24]
+    matchTable.addMatch(@[0, 1, 2], 1337)
+    check matchTable.len == 2
+    check toSeq(matchTable.matchList(@[0, 1, 2]).items) == @[1337, 42]
+    check toSeq(matchTable.matchList(@[2, 1, 0]).items) == @[24]