add config tests

pkg/config/config.go

@@ -32,3 +32,9 @@ func LoadConfig() *Config {
 
 	return cfg
 }
+
+// Only for tests
+func LoadConfigTest() {
+	os.Setenv("TEST_VALUE", "xDLUL420")
+	// defer os.Unsetenv("TEST_VALUE")
+}

pkg/config/config_test.go

@@ -0,0 +1,20 @@
+package config
+
+import (
+	"os"
+	"testing"
+)
+
+func TestLoadConfig(t *testing.T) {
+	t.Run("loads a testing value from the .env file", func(t *testing.T) {
+		LoadConfigTest()
+
+		got := os.Getenv("TEST_VALUE")
+		want := "xDLUL420"
+
+		if got != want {
+			t.Errorf("got %q, want %q", got, want)
+		}
+
+	})
+}