package structuredoutput

import (
	"errors"
	"testing"
)

func TestIsMalformedError(t *testing.T) {
	cases := []struct {
		name string
		err  error
		want bool
	}{
		{name: "nil", err: nil, want: false},
		{name: "generic", err: errors.New("network timeout"), want: false},
		{name: "malformed", err: errors.New("malformed structured output"), want: true},
		{name: "decode structured", err: errors.New("decode structured output: unexpected end of JSON input"), want: true},
		{name: "missing choices", err: errors.New("provider response missing choices"), want: true},
		{name: "missing content", err: errors.New("provider response missing assistant message content"), want: true},
		{name: "empty content", err: errors.New("provider response assistant message content is empty"), want: true},
		{name: "invalid content json", err: errors.New("provider response assistant message content is not valid JSON"), want: true},
	}

	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			got := IsMalformedError(tc.err)
			if got != tc.want {
				t.Fatalf("IsMalformedError(%v): got=%v want=%v", tc.err, got, tc.want)
			}
		})
	}
}