test: add utils

spec/unit/utils_test.lua

@@ -0,0 +1,29 @@
+local t = require "spec.testutils"
+local child = MiniTest.new_child_neovim()
+local T = MiniTest.new_set {
+  hooks = {
+    post_once = child.stop,
+    pre_case = function()
+      child.restart { "-u", t.mininit_path }
+    end,
+  },
+}
+
+T["utils"] = MiniTest.new_set()
+T["utils"]["should .remove_empty_lines()"] = function()
+  local u = require "gopher._utils"
+  local inp = { "hi", "", "a", "", "", "asdf" }
+
+  t.eq(u.remove_empty_lines(inp), { "hi", "a", "asdf" })
+end
+
+T["utils"]["should .readfile_joined()"] = function()
+  local data = "line1\nline2\nline3"
+  local tmp = t.tmpfile()
+  local u = require "gopher._utils"
+
+  t.writefile(tmp, data)
+  t.eq(u.readfile_joined(tmp), data)
+end
+
+return T