mirror of
https://github.com/soypat/lneto.git
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Pat Whittingslow
376e1a0b4f
* work on tracking more heap allocations down * write own heapless IP AppendFormatAddr functions * remove potential Error method allocations * more logging
44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
package ipv4
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import (
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"net/netip"
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"testing"
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)
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func TestAppendFormatAddr(t *testing.T) {
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tests := []struct {
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addr [4]byte
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want string
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}{
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{addr: [4]byte{0, 0, 0, 0}, want: "0.0.0.0"},
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{addr: [4]byte{127, 0, 0, 1}, want: "127.0.0.1"},
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{addr: [4]byte{192, 168, 1, 1}, want: "192.168.1.1"},
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{addr: [4]byte{255, 255, 255, 255}, want: "255.255.255.255"},
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{addr: [4]byte{10, 0, 0, 1}, want: "10.0.0.1"},
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{addr: [4]byte{1, 2, 3, 4}, want: "1.2.3.4"},
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{addr: [4]byte{100, 99, 9, 0}, want: "100.99.9.0"},
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}
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for _, tc := range tests {
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got := string(AppendFormatAddr(nil, tc.addr))
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if got != tc.want {
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t.Errorf("AppendFormatAddr(%v): got %q, want %q", tc.addr, got, tc.want)
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}
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// Cross-check with netip.
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want := netip.AddrFrom4(tc.addr).String()
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if got != want {
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t.Errorf("AppendFormatAddr(%v) disagrees with netip: got %q, want %q", tc.addr, got, want)
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}
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}
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}
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func TestAppendFormatAddr_noAllocs(t *testing.T) {
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var buf [24]byte
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addr := [4]byte{192, 168, 1, 1}
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allocs := testing.AllocsPerRun(100, func() {
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_ = AppendFormatAddr(buf[:0], addr)
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})
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if allocs != 0 {
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t.Errorf("expected 0 allocs, got %v", allocs)
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}
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}
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