add testing...

this is very limited right now, but I will expand as I see fit

Makefile

@@ -0,0 +1,4 @@
+test:
+	nvim --headless -c "PlenaryBustedDirectory tests/ {minimal_init = './tests/minit.lua'}"
+
+.PHONY: test

tests/dep_spec.lua

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+---@diagnostic disable: undefined-global, undefined-field
+local dep_ui_format = require("dep.ui.format")
+
+describe("ui log formatting", function()
+  it("returns the proper chunks to print a formatted line", function()
+    assert.same(
+      {
+        { "[", "" },
+        { "11:22:33", "Boolean" },
+        { "] ", "" },
+        { "file.lua", "String" },
+        { ":", "" },
+        { "1", "Number" },
+        { ": ", "" },
+        { "some fancy message", "" }
+      },
+      dep_ui_format.log_line("[11:22:33] file.lua:1:(vim) some fancy message")
+    )
+  end)
+end)

tests/minit.lua

@@ -0,0 +1 @@
+vim.opt.rtp:prepend(".")