1 files changed, 56 insertions, 0 deletions
diff --git a/test/functional/core/path_spec.lua b/test/functional/core/path_spec.lua
new file mode 100644
index 0000000000..669bc99136
--- /dev/null
+++ b/test/functional/core/path_spec.lua
@@ -0,0 +1,56 @@
+local helpers = require('test.functional.helpers')(after_each)
+local clear = helpers.clear
+local eq = helpers.eq
+local eval = helpers.eval
+local command = helpers.command
+local iswin = helpers.iswin
+
+describe('path collapse', function()
+  local targetdir
+  local expected_path
+
+  local function join_path(...)
+    local pathsep = (iswin() and '\\' or '/')
+    return table.concat({...}, pathsep)
+  end
+
+  before_each(function()
+    targetdir = join_path('test', 'functional', 'fixtures')
+    clear()
+    command('edit '..join_path(targetdir, 'tty-test.c'))
+    expected_path = eval('expand("%:p")')
+  end)
+
+  it('with /./ segment #7117', function()
+    command('edit '..join_path(targetdir, '.', 'tty-test.c'))
+    eq(expected_path, eval('expand("%:p")'))
+  end)
+
+  it('with ./ prefix #7117', function()
+    command('edit '..join_path('.', targetdir, 'tty-test.c'))
+    eq(expected_path, eval('expand("%:p")'))
+  end)
+
+  it('with ./ prefix, after directory change #7117', function()
+    command('edit '..join_path('.', targetdir, 'tty-test.c'))
+    command('cd test')
+    eq(expected_path, eval('expand("%:p")'))
+  end)
+
+  it('with /../ segment #7117', function()
+    command('edit '..join_path(targetdir, '..', 'fixtures', 'tty-test.c'))
+    eq(expected_path, eval('expand("%:p")'))
+  end)
+
+  it('with ../ and different starting directory #7117', function()
+    command('cd test')
+    command('edit '..join_path('..', targetdir, 'tty-test.c'))
+    eq(expected_path, eval('expand("%:p")'))
+  end)
+
+  it('with ./../ and different starting directory #7117', function()
+    command('cd test')
+    command('edit '..join_path('.', '..', targetdir, 'tty-test.c'))
+    eq(expected_path, eval('expand("%:p")'))
+  end)
+end)