Updated all the plugins. Removed powerline. Added vim-airline (replacement for powerline). Added vim-fugitive.

sources_non_forked/vim-airline/t/extensions_default.vim

@@ -0,0 +1,32 @@
+let g:airline_theme = 'dark'
+call airline#init#bootstrap()
+call airline#init#sections()
+source plugin/airline.vim
+
+describe 'default'
+  before
+    let s:builder = airline#builder#new({'active': 1})
+  end
+
+  it 'should use the layout'
+    let g:airline#extensions#default#layout = [
+          \ [ 'c', 'a', 'b', 'warning' ],
+          \ [ 'x', 'z', 'y' ]
+          \ ]
+    call airline#extensions#default#apply(s:builder, { 'winnr': 1, 'active': 1 })
+    let stl = s:builder.build()
+    Expect stl =~ 'airline_c_to_airline_a'
+    Expect stl =~ 'airline_a_to_airline_b'
+    Expect stl =~ 'airline_b_to_airline_warning'
+    Expect stl =~ 'airline_x_to_airline_z'
+    Expect stl =~ 'airline_z_to_airline_y'
+  end
+
+  it 'should only render warning section in active splits'
+    wincmd s
+    Expect airline#statusline(1) =~ 'warning'
+    Expect airline#statusline(2) !~ 'warning'
+    wincmd c
+  end
+end
+