Add another unit test. This is so damn painful.

tests/README.markdown

@@ -7,7 +7,7 @@ Gundo bundles Luc Hermitte's [UT][] framework to make the process less painful.
 
 To run a test, `cd` into the `tests` directory and use:
 
-    ./run-tests.sh [TEST FILE].vim
+    ./run-tests.sh [[some-test.vim] ...]
 
 The script will run the console vim command with its own vimrc and .vim
 directory, so none of your other plugins should interfere. The result of the
@@ -17,5 +17,4 @@ The `q` key will be remapped to perform `:qa!` so you can close everything
 quickly if it all looks good.
 
 The `run-tests.sh` script is still a work in progress.  I need to figure out
-a good way of running multiple tests and collecting results.  Suggestions
+a good way of collecting results.  Suggestions and/or patches are very welcome.
-and/or patches are very welcome.

tests/run-tests.sh

@@ -2,4 +2,12 @@
 
 set -e
 
-vim -u vimrc_test -c ":UTRun $1"
+if [[ $# -eq 0 ]]
+then
+    TESTS="`ls *.vim | tr "\n" ' '`"
+else
+    IFS=' '
+    TESTS="$*"
+fi
+
+vim -u vimrc_test -c ":UTRun $TESTS"

tests/test-graph.vim

@@ -0,0 +1,69 @@
+let s:cpo_save=&cpo
+set cpo&vim
+
+UTSuite [Gundo] Testing Toggling
+
+function! s:Setup()"{{{
+    exec 'edit test'
+    call g:Goto('test')
+    setlocal buftype=nofile
+endfunction"}}}
+function! s:Teardown()"{{{
+    if bufwinnr(bufnr('__Gundo__')) != -1
+        exec bufwinnr(bufnr('__Gundo__')) . 'wincmd w'
+        quit
+    endif
+    if bufwinnr(bufnr('__Gundo_Preview__')) != -1
+        exec bufwinnr(bufnr('__Gundo_Preview__')) . 'wincmd w'
+        quit
+    endif
+    if bufnr('__Gundo__') != -1
+        exec 'bwipeout ' . bufnr('__Gundo__')
+    endif
+    if bufnr('__Gundo_Preview__') != -1
+        exec 'bwipeout ' . bufnr('__Gundo_Preview__')
+    endif
+    if bufnr('test') != -1
+        exec 'bwipeout ' . bufnr('test')
+    endif
+    if bufnr('test2') != -1
+        exec 'bwipeout ' . bufnr('test2')
+    endif
+endfunction"}}}
+
+function! s:TestToggleBasic()"{{{
+    call g:TypeLine("ONE")
+    call g:TypeLineDone("TWO")
+
+    GundoToggle
+
+    Assert g:Contains("o  [0]")
+    Assert g:Contains("o  [1]")
+    Assert g:Contains("@  [2]")
+    Assert !g:Contains("[3]")
+endfunction"}}}
+
+function! s:TestToggleBranches()"{{{
+    call g:TypeLineDone("ONE")
+    silent! undo
+    call g:TypeLineDone("TWO")
+
+    GundoToggle
+
+    " Make sure there is a branch next to state 2
+    call g:GotoLineContaining("[1]")
+    Assert g:CurrentLineContains("|")
+
+    " Make sure there is no branch next to states 0 and 2
+    call g:GotoLineContaining("[0]")
+    Assert !g:CurrentLineContains("|")
+    call g:GotoLineContaining("[2]")
+    Assert !g:CurrentLineContains("|")
+
+    " Make sure the branch point is directly above state 0
+    call g:GotoLineContaining("[0]")
+    call g:MoveUp()
+    Assert g:CurrentLineContains("|/")
+endfunction"}}}
+
+let &cpo=s:cpo_save

tests/test-toggle.vim

@@ -5,7 +5,7 @@ UTSuite [Gundo] Testing Toggling
 
 function! s:Setup()"{{{
     exec 'edit test'
-    exec bufwinnr(bufnr('test')) . 'wincmd w'
+    call g:Goto('test')
 endfunction"}}}
 function! s:Teardown()"{{{
     if bufwinnr(bufnr('__Gundo__')) != -1
@@ -29,9 +29,6 @@ function! s:Teardown()"{{{
         exec 'bwipeout ' . bufnr('test2')
     endif
 endfunction"}}}
-function! s:Goto(buffername)"{{{
-    exec bufwinnr(bufnr(a:buffername)) . 'wincmd w'
-endfunction"}}}
 
 function! s:TestToggleBasic()"{{{
     " Make sure we're starting from scratch.
@@ -72,7 +69,7 @@ function! s:TestToggleWhenMoved()"{{{
     " Open Gundo
     GundoToggle
 
-    call s:Goto('test')
+    call g:Goto('test')
     Assert expand('%') == 'test'
 
     " Close Gundo
@@ -87,7 +84,7 @@ function! s:TestToggleWhenMoved()"{{{
     " Open Gundo
     GundoToggle
 
-    call s:Goto('__Gundo_Preview__')
+    call g:Goto('__Gundo_Preview__')
     Assert expand('%') == '__Gundo_Preview__'
 
     " Close Gundo
@@ -108,7 +105,7 @@ function! s:TestToggleReturnToTarget()"{{{
     Assert bufwinnr(bufnr('__Gundo_Preview__')) == -1
 
     exec 'new test2'
-    call s:Goto('test')
+    call g:Goto('test')
 
     " Toggle Gundo
     GundoToggle
@@ -118,7 +115,7 @@ function! s:TestToggleReturnToTarget()"{{{
     Assert expand('%') == 'test'
 
     " Move to test2
-    call s:Goto('test2')
+    call g:Goto('test2')
 
     " Toggle Gundo
     GundoToggle

tests/vim_test/plugin/gundo_test_utils.vim

@@ -0,0 +1,41 @@
+function! g:Goto(buffername)"{{{
+    exec bufwinnr(bufnr(a:buffername)) . 'wincmd w'
+endfunction"}}}
+
+function! g:GotoLineContaining(text)"{{{
+    exe "silent! normal gg/\\M" . a:text . "\n"
+endfunction"}}}
+
+function! g:CurrentLineContains(text)"{{{
+    if stridx(getline('.'), a:text) != -1
+        return 1
+    else
+        return 0
+    endif
+endfunction"}}}
+
+function! g:Contains(text)"{{{
+    call g:GotoLineContaining(a:text)
+    return g:CurrentLineContains(a:text)
+endfunction"}}}
+
+function! g:TypeLine(text)"{{{
+    exe "normal i" . a:text . "\<C-g>u\n\e"
+endfunction"}}}
+
+function! g:TypeLineDone(text)"{{{
+    exe "normal i" . a:text . "\n\e"
+endfunction"}}}
+
+function! g:PrintTheFuckingBuffer()"{{{
+    echo join(getline(1, 100000), "\n")
+    echo "SOMETIMES I HATE YOU VIM"
+endfunction"}}}
+
+function! g:MoveUp()"{{{
+    call cursor(line('.') - 1, 0)
+endfunction"}}}
+
+function! g:MoveDown()"{{{
+    call cursor(line('.') + 1, 0)
+endfunction"}}}