From 3ca1d2c4370e8e79aba3940d5c8fe115960b75a8 Mon Sep 17 00:00:00 2001
From: Murilo Ijanc <murilo@ijanc.org>
Date: Sun, 26 Jul 2026 15:18:21 -0300
Subject: Initial import

---
 internal/config/config_test.go | 76 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 internal/config/config_test.go

(limited to 'internal/config/config_test.go')

diff --git a/internal/config/config_test.go b/internal/config/config_test.go
new file mode 100644
index 0000000..7ae0d95
--- /dev/null
+++ b/internal/config/config_test.go
@@ -0,0 +1,76 @@
+package config
+
+import (
+	"errors"
+	"log/slog"
+	"strings"
+	"testing"
+)
+
+func TestLoadRequiresTheToken(t *testing.T) {
+	t.Setenv(EnvToken, "")
+	if _, err := Load(); !errors.Is(err, ErrMissingToken) {
+		t.Fatalf("Load error = %v, want ErrMissingToken", err)
+	}
+}
+
+func TestLoadDefaults(t *testing.T) {
+	t.Setenv(EnvToken, "424242:not-a-real-token")
+
+	cfg, err := Load()
+	if err != nil {
+		t.Fatalf("Load: %v", err)
+	}
+	if cfg.CepisBaseURL != "https://cep.is" {
+		t.Fatalf("base URL = %q", cfg.CepisBaseURL)
+	}
+	if cfg.TelegramAPIBaseURL != "https://api.telegram.org" {
+		t.Fatalf("telegram base URL = %q", cfg.TelegramAPIBaseURL)
+	}
+	if cfg.LogLevel != slog.LevelInfo {
+		t.Fatalf("log level = %v", cfg.LogLevel)
+	}
+}
+
+func TestLoadOverrides(t *testing.T) {
+	t.Setenv(EnvToken, "424242:not-a-real-token")
+	t.Setenv(EnvCepisBaseURL, "http://localhost:8080/")
+	t.Setenv(EnvTelegramAPIBaseURL, "http://127.0.0.1:9000/")
+	t.Setenv(EnvLogLevel, "debug")
+
+	cfg, err := Load()
+	if err != nil {
+		t.Fatalf("Load: %v", err)
+	}
+	if cfg.CepisBaseURL != "http://localhost:8080" {
+		t.Fatalf("base URL = %q, the trailing slash should be gone", cfg.CepisBaseURL)
+	}
+	if cfg.TelegramAPIBaseURL != "http://127.0.0.1:9000" {
+		t.Fatalf("telegram base URL = %q", cfg.TelegramAPIBaseURL)
+	}
+	if cfg.LogLevel != slog.LevelDebug {
+		t.Fatalf("log level = %v", cfg.LogLevel)
+	}
+}
+
+func TestLoadRejectsAnUnknownLogLevel(t *testing.T) {
+	t.Setenv(EnvToken, "424242:not-a-real-token")
+	t.Setenv(EnvLogLevel, "verbose")
+
+	if _, err := Load(); err == nil {
+		t.Fatal("an unknown log level should be an error")
+	}
+}
+
+func TestLogValueRedactsTheToken(t *testing.T) {
+	cfg := Defaults()
+	cfg.Token = "424242:not-a-real-token"
+
+	rendered := cfg.LogValue().String()
+	if strings.Contains(rendered, cfg.Token) {
+		t.Fatalf("the token leaked into the log value: %s", rendered)
+	}
+	if !strings.Contains(rendered, "token_set=true") {
+		t.Fatalf("log value = %s", rendered)
+	}
+}
-- 
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