chore(tests): add test for keymap

tests/unit/core/keymap_spec.lua

@@ -0,0 +1,94 @@
+local mock = require('luassert.mock')
+local keymap = require('vgit.core.keymap')
+
+describe('keymap', function()
+  before_each(function()
+    vim.api = mock(vim.api, true)
+  end)
+
+  after_each(function()
+    mock.revert(vim.api)
+  end)
+
+  describe('define', function()
+    it('should call vim api internally to define the given keys', function()
+      local expected = {
+        { 'n', '<C-k>', '<Cmd>lua require("vgit").hunk_up()<CR>' },
+        { 'n', '<C-j>', '<Cmd>lua require("vgit").hunk_down()<CR>' },
+        {
+          'n',
+          '<leader>gs',
+          '<Cmd>lua require("vgit").buffer_hunk_stage()<CR>',
+        },
+        {
+          'n',
+          '<leader>gr',
+          '<Cmd>lua require("vgit").buffer_hunk_reset()<CR>',
+        },
+        {
+          'n',
+          '<leader>gp',
+          '<Cmd>lua require("vgit").buffer_hunk_preview()<CR>',
+        },
+        {
+          'n',
+          '<leader>gb',
+          '<Cmd>lua require("vgit").buffer_blame_preview()<CR>',
+        },
+        {
+          'n',
+          '<leader>gf',
+          '<Cmd>lua require("vgit").buffer_diff_preview()<CR>',
+        },
+        {
+          'n',
+          '<leader>gh',
+          '<Cmd>lua require("vgit").buffer_history_preview()<CR>',
+        },
+        { 'n', '<leader>gu', '<Cmd>lua require("vgit").buffer_reset()<CR>' },
+        {
+          'n',
+          '<leader>gg',
+          '<Cmd>lua require("vgit").buffer_gutter_blame_preview()<CR>',
+        },
+        {
+          'n',
+          '<leader>gd',
+          '<Cmd>lua require("vgit").project_diff_preview()<CR>',
+        },
+        {
+          'n',
+          '<leader>gx',
+          '<Cmd>lua require("vgit").toggle_diff_preference()<CR>',
+        },
+      }
+
+      keymap.define({
+        ['n <C-k>'] = 'hunk_up',
+        ['n <C-j>'] = 'hunk_down',
+        ['n <leader>gs'] = 'buffer_hunk_stage',
+        ['n <leader>gr'] = 'buffer_hunk_reset',
+        ['n <leader>gp'] = 'buffer_hunk_preview',
+        ['n <leader>gb'] = 'buffer_blame_preview',
+        ['n <leader>gf'] = 'buffer_diff_preview',
+        ['n <leader>gh'] = 'buffer_history_preview',
+        ['n <leader>gu'] = 'buffer_reset',
+        ['n <leader>gg'] = 'buffer_gutter_blame_preview',
+        ['n <leader>gd'] = 'project_diff_preview',
+        ['n <leader>gx'] = 'toggle_diff_preference',
+      })
+
+      for index in ipairs(expected) do
+        assert.stub(vim.api.nvim_set_keymap).was.called_with(
+          expected[index][1],
+          expected[index][2],
+          expected[index][3],
+          {
+            noremap = true,
+            silent = true,
+          }
+        )
+      end
+    end)
+  end)
+end)