test(feat): add tests for reversed config map function

tests/specs/neogit/config_spec.lua

@@ -0,0 +1,18 @@
+describe("neogit config", function()
+  describe("reversed status maps", function()
+    it("can be reversed by copy", function()
+      local config = require("neogit.config")
+      config.get_reversed_status_maps()
+      assert.True(config.values.mappings.status["s"] ~= nil)
+      assert.True(config.values.mappings.status["Stage"] == nil)
+    end)
+
+    it("returns reversed status mappings", function ()
+      local config = require("neogit.config")
+      local reversed_maps = config.get_reversed_status_maps()
+      assert.True(reversed_maps["Stage"] ~= nil)
+      assert.True(reversed_maps["Unstage"] ~= nil)
+      assert.True(reversed_maps["CommitPopup"] ~= nil)
+    end)
+  end)
+end)