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package llm
import (
"strings"
"testing"
)
func TestNewFromConfig_DefaultsAndErrors(t *testing.T) {
// Unknown provider
if _, err := NewFromConfig(Config{Provider: "bogus"}, "", "", ""); err == nil {
t.Fatalf("expected error for unknown provider")
} else if !strings.Contains(err.Error(), "supported providers:") {
t.Fatalf("expected supported providers hint, got %q", err.Error())
}
// OpenAI missing key
if _, err := NewFromConfig(Config{Provider: "openai", OpenAIModel: "g"}, "", "", ""); err == nil {
t.Fatalf("expected key error")
} else if !strings.Contains(err.Error(), "OPENAI_API_KEY") || !strings.Contains(err.Error(), "HEXAI_OPENAI_API_KEY") {
t.Fatalf("expected actionable API key hint, got %q", err.Error())
}
}
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