add basic unit tests run at startup

1 files changed, 33 insertions, 0 deletions

diff --git a/src/unit_tests.cc b/src/unit_tests.cc
new file mode 100644
index 00000000..3cb7598c
--- /dev/null
+++ b/src/unit_tests.cc
@@ -0,0 +1,33 @@
+#include "buffer.hh"
+#include "assert.hh"
+
+using namespace Kakoune;
+
+int test_buffer()
+{
+    Buffer buffer("test", Buffer::Type::Scratch, "allo ?\nmais que fais la police\n hein ?\n youpi\n");
+    assert(buffer.line_count() == 4);
+
+    BufferIterator i = buffer.begin();
+    assert(*i == 'a');
+    i += 6;
+    assert(buffer.line_and_column_at(i) == BufferCoord{0 COMMA 6});
+    i += 1;
+    assert(buffer.line_and_column_at(i) == BufferCoord{1 COMMA 0});
+    --i;
+    assert(buffer.line_and_column_at(i) == BufferCoord{0 COMMA 6});
+    ++i;
+    assert(buffer.line_and_column_at(i) == BufferCoord{1 COMMA 0});
+    buffer.modify(Modification::make_insert(i, "tchou kanaky\n"));
+    assert(buffer.line_count() == 5);
+
+    BufferIterator begin = buffer.iterator_at({ 4, 1 });
+    BufferIterator end = buffer.iterator_at({ 4, 5 }) + 1;
+    String str = buffer.string(begin, end);
+    assert(str == "youpi");
+}
+
+void run_unit_tests()
+{
+    test_buffer();
+}