test: add base test for ivy.window

lua/ivy/window_test.lua

@@ -0,0 +1,30 @@
+local window = require "ivy.window"
+
+before_each(function()
+  -- Mock the global vim functions we are using in the prompt
+  _G.vim = {
+    notify = function() end,
+    api = {
+      nvim_echo = function() end,
+      nvim_get_current_win = function()
+        return 10
+      end,
+      nvim_command = function() end,
+      nvim_win_get_buf = function()
+        return 10
+      end,
+      nvim_win_set_option = function() end,
+      nvim_buf_set_option = function() end,
+      nvim_buf_set_var = function() end,
+      nvim_buf_set_keymap = function() end,
+    },
+  }
+end)
+
+it("can initialize", function(t)
+  window.initialize()
+
+  if window.get_buffer() ~= 10 then
+    t.error("The windows buffer should be 10 found " .. window.get_buffer())
+  end
+end)