patch 8.0.0010
Problem: Crash when editing file that starts with crypt yeader. (igor2x)
Solution: Check for length of text. (Christian Brabandt) Add a test.
diff --git a/src/testdir/test_crypt.vim b/src/testdir/test_crypt.vim
new file mode 100644
index 0000000..10979dd
--- /dev/null
+++ b/src/testdir/test_crypt.vim
@@ -0,0 +1,42 @@
+" Tests for encryption.
+" TODO: include tests from test71.
+
+func Common_head_only(text)
+ " This was crashing Vim
+ split Xtest.txt
+ call setline(1, a:text)
+ wq
+ call feedkeys(":split Xtest.txt\<CR>foobar\<CR>", "tx")
+ call delete('Xtest.txt')
+ call assert_match('VimCrypt', getline(1))
+ bwipe!
+endfunc
+
+func Test_head_only_2()
+ call Common_head_only('VimCrypt~02!abc')
+endfunc
+
+func Test_head_only_3()
+ call Common_head_only('VimCrypt~03!abc')
+endfunc
+" Tests for encryption.
+" TODO: include tests from test71.
+
+func Common_head_only(text)
+ " This was crashing Vim
+ split Xtest.txt
+ call setline(1, a:text)
+ wq
+ call feedkeys(":split Xtest.txt\<CR>foobar\<CR>", "tx")
+ call delete('Xtest.txt')
+ call assert_match('VimCrypt', getline(1))
+ bwipe!
+endfunc
+
+func Test_head_only_2()
+ call Common_head_only('VimCrypt~02!abc')
+endfunc
+
+func Test_head_only_3()
+ call Common_head_only('VimCrypt~03!abc')
+endfunc