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package http01
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestParseForwardedHeader(t *testing.T) {
testCases := []struct {
name string
input string
want []map[string]string
err string
}{
{
name: "empty input",
input: "",
want: nil,
},
{
name: "simple case",
input: `for=1.2.3.4;host=example.com; by=127.0.0.1`,
want: []map[string]string{
{"for": "1.2.3.4", "host": "example.com", "by": "127.0.0.1"},
},
},
{
name: "quoted-string",
input: `foo="bar"`,
want: []map[string]string{
{"foo": "bar"},
},
},
{
name: "multiple entries",
input: `a=1, b=2; c=3, d=4`,
want: []map[string]string{
{"a": "1"},
{"b": "2", "c": "3"},
{"d": "4"},
},
},
{
name: "whitespace",
input: " a = 1,\tb\n=\r\n2,c=\" untrimmed \"",
want: []map[string]string{
{"a": "1"},
{"b": "2"},
{"c": " untrimmed "},
},
},
{
name: "unterminated quote",
input: `x="y`,
err: "unterminated quoted-string",
},
{
name: "unexpected quote",
input: `"x=y"`,
err: "unexpected quote",
},
{
name: "invalid token",
input: `a=b, ipv6=[fe80::1], x=y`,
err: "invalid token character at pos 10: [",
},
}
for _, test := range testCases {
test := test
t.Run(test.name, func(t *testing.T) {
t.Parallel()
actual, err := parseForwardedHeader(test.input)
if test.err == "" {
require.NoError(t, err)
assert.EqualValues(t, test.want, actual)
} else {
require.Error(t, err)
assert.Contains(t, err.Error(), test.err)
}
})
}
}
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