fix missing summary after TSamLast call

tests/test_samurai_core_spec.lua

@@ -262,8 +262,24 @@ describe("test-samurai core (no bundled runners)", function()
       "gamma -- delta",
     })
 
+    local cmd_calls = {}
+    local orig_cmd = vim.cmd
+    vim.cmd = function(cmd)
+      table.insert(cmd_calls, cmd)
+      return orig_cmd(cmd)
+    end
+
     core.listing_break_on_dashes()
 
+    local has_noh = false
+    for _, cmd in ipairs(cmd_calls) do
+      if cmd == "noh" then
+        has_noh = true
+        break
+      end
+    end
+    assert.is_true(has_noh)
+
     local broken = vim.api.nvim_buf_get_lines(buf, 0, -1, false)
     assert.same({
       "alpha \\",
@@ -279,6 +295,164 @@ describe("test-samurai core (no bundled runners)", function()
       "alpha -- beta",
       "gamma -- delta",
     }, joined)
+
+    vim.cmd = orig_cmd
+  end)
+
+  it("saves all buffers before running tests", function()
+    local runner = {
+      name = "test-runner-save-buffers",
+    }
+
+    function runner.is_test_file(_bufnr)
+      return true
+    end
+
+    function runner.find_nearest(bufnr, _row, _col)
+      return { file = vim.api.nvim_buf_get_name(bufnr), cwd = vim.loop.cwd(), test_name = "TestA" }
+    end
+
+    function runner.build_command(spec)
+      return { cmd = { "echo", "nearest" }, cwd = spec.cwd }
+    end
+
+    function runner.parse_results(_output)
+      return { passes = {}, failures = {}, skips = {} }
+    end
+
+    function runner.output_parser()
+      return {
+        on_line = function(_line, _state)
+          return nil
+        end,
+        on_complete = function(output, _state)
+          return runner.parse_results(output)
+        end,
+      }
+    end
+
+    function runner.parse_test_output(_output)
+      return {}
+    end
+
+    function runner.collect_failed_locations(_failures, _command, _scope_kind)
+      return {}
+    end
+
+    package.loaded["test-samurai-save-buffers-runner"] = runner
+    test_samurai.setup({ runner_modules = { "test-samurai-save-buffers-runner" } })
+
+    local bufnr = vim.api.nvim_create_buf(false, true)
+    vim.api.nvim_buf_set_name(bufnr, "/tmp/test_samurai_save_buffers.go")
+    vim.bo[bufnr].filetype = "go"
+    vim.api.nvim_set_current_buf(bufnr)
+
+    local cmd_calls = {}
+    local orig_cmd = vim.cmd
+    vim.cmd = function(cmd)
+      table.insert(cmd_calls, cmd)
+    end
+
+    local orig_jobstart = vim.fn.jobstart
+    vim.fn.jobstart = function(_cmd, opts)
+      if opts.on_exit then
+        opts.on_exit(nil, 0, nil)
+      end
+      return 1
+    end
+
+    core.run_nearest()
+
+    vim.fn.jobstart = orig_jobstart
+    vim.cmd = orig_cmd
+
+    local has_wall = false
+    for _, cmd in ipairs(cmd_calls) do
+      if cmd == "wall" then
+        has_wall = true
+        break
+      end
+    end
+    assert.is_true(has_wall)
+  end)
+
+  it("renders the summary in the listing after TSamLast", function()
+    local runner = {
+      name = "test-runner-last-summary",
+    }
+
+    function runner.is_test_file(_bufnr)
+      return true
+    end
+
+    function runner.find_nearest(bufnr, _row, _col)
+      return { file = vim.api.nvim_buf_get_name(bufnr), cwd = vim.loop.cwd(), test_name = "TestA" }
+    end
+
+    function runner.build_command(spec)
+      return { cmd = { "echo", "nearest" }, cwd = spec.cwd }
+    end
+
+    function runner.build_file_command(_bufnr)
+      return { cmd = { "echo", "file" } }
+    end
+
+    function runner.build_all_command(_bufnr)
+      return { cmd = { "echo", "all" } }
+    end
+
+    function runner.build_failed_command(last_command, _failures, _scope_kind)
+      return { cmd = { "echo", "failed" }, cwd = last_command and last_command.cwd or nil }
+    end
+
+    function runner.parse_results(_output)
+      return { passes = { "TestA" }, failures = { "TestB" }, skips = {} }
+    end
+
+    function runner.output_parser()
+      return {
+        on_line = function(_line, _state)
+          return nil
+        end,
+        on_complete = function(output, _state)
+          return runner.parse_results(output)
+        end,
+      }
+    end
+
+    function runner.parse_test_output(_output)
+      return {}
+    end
+
+    function runner.collect_failed_locations(_failures, _command, _scope_kind)
+      return {}
+    end
+
+    package.loaded["test-samurai-last-summary-runner"] = runner
+    test_samurai.setup({ runner_modules = { "test-samurai-last-summary-runner" } })
+
+    local bufnr = vim.api.nvim_create_buf(false, true)
+    vim.api.nvim_buf_set_name(bufnr, "/tmp/test_samurai_last_summary.go")
+    vim.bo[bufnr].filetype = "go"
+    vim.api.nvim_set_current_buf(bufnr)
+
+    local orig_jobstart = vim.fn.jobstart
+    vim.fn.jobstart = function(_cmd, opts)
+      if opts.on_exit then
+        opts.on_exit(nil, 0, nil)
+      end
+      return 1
+    end
+
+    core.run_nearest()
+    core.run_last()
+
+    local listing_buf = vim.api.nvim_get_current_buf()
+    local lines = vim.api.nvim_buf_get_lines(listing_buf, 0, -1, false)
+    local joined = table.concat(lines, "\n")
+    assert.is_true(joined:find("TOTAL", 1, true) ~= nil)
+
+    vim.fn.jobstart = orig_jobstart
   end)
 
   it("filters listing entries and restores them", function()