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|
package pktline
import (
"strings"
"testing"
"github.com/stretchr/testify/require"
)
var (
largestString = strings.Repeat("z", 0xffff-4)
)
func TestScanner(t *testing.T) {
largestPacket := "ffff" + largestString
testCases := []struct {
desc string
in string
out []string
fail bool
}{
{
desc: "happy path",
in: "0010hello world!000000010010hello world!",
out: []string{"0010hello world!", "0000", "0001", "0010hello world!"},
},
{
desc: "large input",
in: "0010hello world!0000" + largestPacket + "0000",
out: []string{"0010hello world!", "0000", largestPacket, "0000"},
},
{
desc: "missing byte middle",
in: "0010hello world!00000010010hello world!",
out: []string{"0010hello world!", "0000", "0010010hello wor"},
fail: true,
},
{
desc: "unfinished prefix",
in: "0010hello world!000",
out: []string{"0010hello world!"},
fail: true,
},
{
desc: "short read in data, only prefix",
in: "0010hello world!0005",
out: []string{"0010hello world!"},
fail: true,
},
}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
scanner := NewScanner(strings.NewReader(tc.in))
var output []string
for scanner.Scan() {
output = append(output, scanner.Text())
}
if tc.fail {
require.Error(t, scanner.Err())
} else {
require.NoError(t, scanner.Err())
}
require.Equal(t, tc.out, output)
})
}
}
func TestIsRefRemoval(t *testing.T) {
testCases := []struct {
in string
isRemoval bool
}{
{in: "003f7217a7c7e582c46cec22a130adf4b9d7d950fba0 7d1665144a3a975c05f1f43902ddaf084e784dbe refs/heads/debug", isRemoval: false},
{in: "003f0000000000000000000000000000000000000000 7d1665144a3a975c05f1f43902ddaf084e784dbe refs/heads/debug", isRemoval: false},
{in: "003f7217a7c7e582c46cec22a130adf4b9d7d950fba0 0000000000000000000000000000000000000000 refs/heads/debug", isRemoval: true},
}
for _, tc := range testCases {
t.Run(tc.in, func(t *testing.T) {
require.Equal(t, tc.isRemoval, IsRefRemoval([]byte(tc.in)))
})
}
}
func TestIsFlush(t *testing.T) {
testCases := []struct {
in string
flush bool
}{
{in: "0008abcd", flush: false},
{in: "invalid packet", flush: false},
{in: "0000", flush: true},
}
for _, tc := range testCases {
t.Run(tc.in, func(t *testing.T) {
require.Equal(t, tc.flush, IsFlush([]byte(tc.in)))
})
}
}
func TestIsDone(t *testing.T) {
testCases := []struct {
in string
done bool
}{
{in: "0008abcd", done: false},
{in: "invalid packet", done: false},
{in: "0009done\n", done: true},
{in: "0001", done: false},
}
for _, tc := range testCases {
t.Run(tc.in, func(t *testing.T) {
require.Equal(t, tc.done, IsDone([]byte(tc.in)))
})
}
}
|
