refactor(tests): start migration to mini.test

tests/units/test_config.lua

@@ -0,0 +1,31 @@
+local eq = MiniTest.expect.equality
+
+describe("gopher.config", function()
+  it(".setup() should provide default when .setup() is not called", function()
+    local c = require "gopher.config"
+
+    eq(c.commands.go, "go")
+    eq(c.commands.gomodifytags, "gomodifytags")
+    eq(c.commands.gotests, "gotests")
+    eq(c.commands.impl, "impl")
+    eq(c.commands.iferr, "iferr")
+    eq(c.commands.dlv, "dlv")
+  end)
+
+  it(".setup() should change options on users config", function()
+    local c = require "gopher.config"
+    c.setup {
+      commands = {
+        go = "go1.420",
+        gomodifytags = "iDontUseRustBtw",
+      },
+    }
+
+    eq(c.commands.go, "go1.420")
+    eq(c.commands.gomodifytags, "iDontUseRustBtw")
+    eq(c.commands.gotests, "gotests")
+    eq(c.commands.impl, "impl")
+    eq(c.commands.iferr, "iferr")
+    eq(c.commands.dlv, "dlv")
+  end)
+end)