audit: comprehensive cleanup — delete 8 files, fix buffer bug, cut bloat

tests/test_config.lua

@@ -1,36 +1,29 @@
--- tests for config module
+local assert_eq = require("helpers").assert_eq
 local config = require("tiny-debugger.config")
 
-local function assert_eq(a, b, msg)
-  if a ~= b then
-    error(string.format("FAIL: %s — expected %s, got %s", msg, vim.inspect(b), vim.inspect(a)))
-  end
-end
-
--- test 1: defaults unchanged after empty merge
+-- defaults unchanged after empty merge
 local opts = config.merge({})
 assert_eq(opts.keys.continue, "c", "default continue key")
 assert_eq(opts.help_on_enter, true, "default help_on_enter")
 assert_eq(opts.builtin_adapters, true, "default builtin_adapters")
-assert_eq(#opts.dapui.layouts, 2, "default layout count")
 
--- test 2: partial key override
+-- partial key override
 opts = config.merge({ keys = { continue = "g" } })
 assert_eq(opts.keys.continue, "g", "overridden continue key")
 assert_eq(opts.keys.step_over, "s", "preserved step_over key")
 assert_eq(opts.keys.terminate, "q", "preserved terminate key")
 
--- test 3: disable a key with false
+-- disable a key with false
 opts = config.merge({ keys = { continue = false } })
 assert_eq(opts.keys.continue, false, "disabled continue key")
 assert_eq(opts.keys.step_over, "s", "preserved step_over after disable")
 
--- test 4: override help_on_enter
+-- override help_on_enter
 opts = config.merge({ help_on_enter = false })
 assert_eq(opts.help_on_enter, false, "overridden help_on_enter")
 assert_eq(opts.keys.continue, "c", "keys preserved after help override")
 
--- test 5: merge doesn't mutate defaults
+-- merge doesn't mutate defaults
 config.merge({ keys = { continue = "z" } })
 assert_eq(config.defaults.keys.continue, "c", "defaults not mutated")