Files
weatherreporter/internal/config/config_test.go

89 lines
2.5 KiB
Go

package config
import (
"os"
"path/filepath"
"strings"
"testing"
"time"
)
func TestDefaults(t *testing.T) {
cfg, err := Load(LoadOptions{})
if err != nil {
t.Fatalf("Load() error = %v", err)
}
if cfg.WeatherAPI.Units != "us" {
t.Fatalf("Units = %q, want us", cfg.WeatherAPI.Units)
}
if cfg.WeatherAPI.Timezone != "Chicago" {
t.Fatalf("Timezone = %q, want Chicago", cfg.WeatherAPI.Timezone)
}
if cfg.WeatherAPI.Format != "json" {
t.Fatalf("Format = %q, want json", cfg.WeatherAPI.Format)
}
if cfg.MissingSource.Default != MissingSourceWarn {
t.Fatalf("MissingSource.Default = %q, want warn", cfg.MissingSource.Default)
}
}
func TestLoadExampleConfig(t *testing.T) {
cfg, err := LoadFile(filepath.Join("..", "..", "examples", "config.yml"))
if err != nil {
t.Fatalf("LoadFile() error = %v", err)
}
if cfg.WeatherAPI.BaseURL != "https://weather.api.example.com/" {
t.Fatalf("BaseURL = %q, want example URL", cfg.WeatherAPI.BaseURL)
}
if cfg.WeatherAPI.Timeout != 15*time.Second {
t.Fatalf("Timeout = %s, want 15s", cfg.WeatherAPI.Timeout)
}
if cfg.MissingSource.Sources["alerts"] != MissingSourceNone {
t.Fatalf("alerts policy = %q, want none", cfg.MissingSource.Sources["alerts"])
}
}
func TestExplicitMissingConfigReturnsError(t *testing.T) {
_, err := LoadFile(filepath.Join(t.TempDir(), "missing.yml"))
if err == nil {
t.Fatal("LoadFile() error = nil, want missing file error")
}
if !strings.Contains(err.Error(), "read config") {
t.Fatalf("error = %q, want read config context", err.Error())
}
}
func TestInvalidConfigProducesActionableError(t *testing.T) {
dir := t.TempDir()
path := filepath.Join(dir, "config.yml")
if err := os.WriteFile(path, []byte("missing_source:\n default: explode\n"), 0o600); err != nil {
t.Fatalf("write config fixture: %v", err)
}
_, err := LoadFile(path)
if err == nil {
t.Fatal("LoadFile() error = nil, want validation error")
}
if !strings.Contains(err.Error(), "missing_source.default") {
t.Fatalf("error = %q, want field path", err.Error())
}
}
func TestLoadAppliesOverrides(t *testing.T) {
cfg, err := Load(LoadOptions{Units: "metric", Timezone: "+09:30", Output: "./out"})
if err != nil {
t.Fatalf("Load() error = %v", err)
}
if cfg.WeatherAPI.Units != "metric" {
t.Fatalf("Units = %q, want metric", cfg.WeatherAPI.Units)
}
if cfg.WeatherAPI.Timezone != "+09:30" {
t.Fatalf("Timezone = %q, want +09:30", cfg.WeatherAPI.Timezone)
}
if cfg.Reports.OutputDir != "./out" {
t.Fatalf("OutputDir = %q, want ./out", cfg.Reports.OutputDir)
}
}