Upgrades to Config

* Added config file and config tests
* Configs per stack can be set up depending on their config/STACK folder
and tested appropriately to add config redundancy

config/config_test.go

@@ -0,0 +1,68 @@
+package config
+
+import (
+	"testing"
+)
+
+func TestAllConfigs(t *testing.T) {
+	SingleStackTest(t, "dev", StackConfiguration{
+		AllowFreshAdminGeneration: true,
+		AdminEmails:               []string{"admin@admin.invalid"},
+		AdminHmacEnv:              "ADMIN_HMAC_ENV",
+		UserHmacEnv:               "USER_HMAC_ENV",
+		AuthedRateLimitConfig:     "ratelimit.auth.json",
+		UnauthedRateLimitConfig:   "ratelimit.unauth.json",
+	})
+}
+
+func SingleStackTest(t *testing.T, stack string, expected StackConfiguration) {
+	Config = StackConfiguration{}
+
+	if Config.ConfigLoaded {
+		t.Errorf("Config.ConfigLoaded should be false before any processing")
+	}
+
+	if len(Config.AdminEmails) > 0 ||
+		Config.AdminHmacEnv != "" ||
+		Config.UserHmacEnv != "" ||
+		Config.AllowFreshAdminGeneration ||
+		Config.AuthedRateLimitConfig != "" ||
+		Config.UnauthedRateLimitConfig != "" { // Extend this IF for any other config values
+		t.Errorf("Config already has values before loading")
+	}
+
+	Environment = stack
+	LoadConfig()
+
+	if !Config.ConfigLoaded {
+		t.Errorf("Config was not set to loaded")
+	}
+
+	// Finally test values
+	if Config.AllowFreshAdminGeneration != expected.AllowFreshAdminGeneration {
+		t.Errorf("AllowFreshAdminGeneration value not set properly")
+	}
+
+	for i, email := range Config.AdminEmails {
+		if expected.AdminEmails[i] != email {
+			t.Errorf("AdminEmails value not set properly, expected %v at %v, was %v", expected.AdminEmails[i], i, email)
+		}
+	}
+
+	if Config.AdminHmacEnv != expected.AdminHmacEnv {
+		t.Errorf("AdminHmacEnv value not set properly")
+	}
+
+	if Config.UserHmacEnv != expected.UserHmacEnv {
+		t.Errorf("UserHmacEnv value not set properly")
+	}
+
+	if Config.AuthedRateLimitConfig != expected.AuthedRateLimitConfig {
+		t.Errorf("AuthedRateLimitConfig value not set properly")
+	}
+
+	if Config.UnauthedRateLimitConfig != expected.UnauthedRateLimitConfig {
+		t.Errorf("UnauthedRateLimitConfig value not set properly")
+	}
+
+}