Changes to tests/. All files

tests/config_spec.lua

@@ -146,3 +146,38 @@ describe("Testing config version gate", function()     eq(err, nil)   end) end)++describe("Testing preview pager", function()+  local defaults = require("fzf-lua.defaults")+  local utils = require("fzf-lua.utils")++  local with_delta = function(fn)+    local executable = vim.fn.executable+    vim.fn.executable = function(bin)+      return bin == "delta" and 1 or executable(bin)+    end+    local ok, err = pcall(fn)+    vim.fn.executable = executable+    if not ok then error(err) end+  end++  it("uses $COLUMNS for skim", function()+    with_delta(function()+      local pager = defaults._preview_pager_fn({ __SK_VERSION = { 5, 6, 6 } })+      ---@cast pager string+      eq(type(pager), "string")+      eq(pager:find(utils._if_win_normalize_vars("$COLUMNS"), 1, true) ~= nil, true)+      eq(pager:find(utils._if_win_normalize_vars("$FZF_PREVIEW_COLUMNS"), 1, true), nil)+    end)+  end)++  it("uses $FZF_PREVIEW_COLUMNS for fzf", function()+    with_delta(function()+      local pager = defaults._preview_pager_fn({})+      ---@cast pager string+      eq(type(pager), "string")+      eq(pager:find(utils._if_win_normalize_vars("$FZF_PREVIEW_COLUMNS"), 1, true) ~= nil, true)+      eq(pager:find(utils._if_win_normalize_vars("$COLUMNS"), 1, true), nil)+    end)+  end)+end)

tests/git_diff_spec.lua

new file mode 100644@@ -0,0 +1,96 @@+---@diagnostic disable: unused-local, unused-function, unused+local MiniTest = require("mini.test")+local helpers = require("fzf-lua.test.helpers")+local child = helpers.new_child_neovim()+local eq = helpers.expect.equality+local new_set = MiniTest.new_set+local exec_lua = child.lua++local repo ---@type string?+local orig_cwd ---@type string?+local orig_shell ---@type string?+local orig_env_shell ---@type string?++local T = helpers.new_set_with_child(child, {+  hooks = {+    pre_case = function()+      orig_cwd = child.fn.getcwd()+      orig_shell = child.o.shell+      orig_env_shell = child.env.SHELL+      repo = exec_lua([[+        local dir = vim.fn.tempname()+        vim.fn.mkdir(dir .. "/(dir)", "p")+        -- Initialize repo and disable signing so commits work even when the+        -- environment has SSH signing configured and the key does not exist.+        vim.fn.system({ "git", "init", dir })+        vim.fn.system({ "git", "-C", dir, "config", "user.email", "test@fzf-lua" })+        vim.fn.system({ "git", "-C", dir, "config", "user.name", "fzf-lua test" })+        vim.fn.system({ "git", "-C", dir, "config", "commit.gpgsign", "false" })+        vim.fn.system({ "git", "-C", dir, "config", "gpg.format", "openpgp" })+        local file = dir .. "/(dir)/file.tsx"+        local fd = io.open(file, "w")+        fd:write("one\n")+        fd:close()+        vim.fn.system({ "git", "-C", dir, "add", "." })+        vim.fn.system({ "git", "-C", dir, "commit", "--no-gpg-sign", "-m", "initial" })+        -- Modify the tracked file so git_diff shows a preview.+        fd = io.open(file, "a")+        fd:write("two\n")+        fd:close()+        return dir+      ]])+      child.cmd("cd " .. vim.fn.fnameescape(assert(repo)))+    end,+    post_case = function()+      child.o.shell = orig_shell+      child.env.SHELL = orig_env_shell+      if repo then+        -- Return child to the original working directory before deleting repo.+        child.cmd("cd " .. vim.fn.fnameescape(assert(orig_cwd)))+        -- Only clear the reference if deletion succeeded.+        eq(0, vim.fn.delete(repo, "rf"))+        repo = nil+        orig_cwd = nil+      end+    end,+  },+})++T["git_diff"] = new_set({ n_retry = not helpers.IS_LINUX() and 5 or nil })++-- Regression test for #2846: preview commands for paths with shell special+-- characters (e.g. parentheses) must not break when the shell is fish.+T["git_diff"]["preview with special chars in fish"] = function()+  helpers.SKIP_IF_WIN()++  -- Prefer a real fish shell, but CI images do not install fish. A POSIX sh+  -- symlink named "fish" still exercises the fish-only preview wrapping path.+  local fish = child.fn.executable("fish") == 1 and child.fn.exepath("fish") or exec_lua([[+    local dir = vim.fn.tempname()+    vim.fn.mkdir(dir, "p")+    local link = dir .. "/fish"+    assert(vim.uv.fs_symlink(vim.fn.exepath("sh"), link))+    return link+  ]])++  child.o.shell = fish+  child.env.SHELL = fish++  helpers.FzfLua.git_diff(child, {+    -- Keep the preview output deterministic (raw git diff, no delta pager).+    preview_pager = false,+    __no_abort = true,+    __expect_lines = false,+    __after_open = function()+      child.wait_until_screenshot_text_match("diff --git a/(dir)/file.tsx")+      local screen = tostring(child.get_screenshot())+      helpers.expect.no_match(screen, "[Ss]yntax error")+    end,+  })++  -- Close the picker.+  child.type_keys("<c-c>")+  child.wait_until(function() return exec_lua([[return _G._fzf_lua_on_create]]) == vim.NIL end)+end++return T