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add extra undo test

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This commit is contained in:
Josh Holtrop 2017-01-15 21:35:38 -05:00
parent cd0efc431d
commit 62e127d400
1 changed files with 22 additions and 0 deletions
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22
test/src/test_Buffer.cc
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@ -437,3 +437,25 @@ TEST(BufferTest, non_adjacent_erases_create_a_single_change_operation)
b.undo();
EXPECT_EQ(ss("abc\n"), b.get_string());
}
TEST(BufferTest, inserting_at_beginning_and_end_of_line_in_insert_mode_creates_proper_undo_operation)
{
std::string s("abc\ndef\n");
Buffer b((const uint8_t *)&s[0], s.size());
auto it = b.add_cursor();
b.enter_insert_mode();
b.insert_code_point(*it, C('1'));
b.insert_code_point(*it, C('2'));
it->go_end_of_line(true);
b.insert_code_point(*it, C('3'));
b.insert_code_point(*it, C('4'));
b.exit_insert_mode();
EXPECT_EQ("12abc34\ndef\n", b.get_string());
b.undo();
EXPECT_EQ("abc\ndef\n", b.get_string());
b.redo();
EXPECT_EQ("12abc34\ndef\n", b.get_string());
}