detached b340c38

test: cover Event.Int32, Fixed and Array decoding

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b340c3890618a9c49be14c9a6c63d5ee941cb8f8
author
brice · · 2026-10-01 05:55 UTC
parent
d57c6e5
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GPG VerifiedCD88F9E564E0102646FB6077A1A07C7C7C3E349D · arch-gpg Verified for the committer email
1 file · +72 -0
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A event_test.go +72 -0
@@ -0,0 +1,72 @@
1+package wlturbo
2+
3+import (
4+ "bytes"
5+ "testing"
6+)
7+
8+func TestEventDecoders(t *testing.T) {
9+ tests := []struct {
10+ name string
11+ data []byte
12+ offset int
13+ read func(*Event) any
14+ want any
15+ wantOffset int
16+ }{
17+ {"int32 negative", []byte{0xfe, 0xff, 0xff, 0xff}, 0,
18+ func(e *Event) any { return e.Int32() }, int32(-2), 4},
19+ {"int32 min", []byte{0, 0, 0, 0x80}, 0,
20+ func(e *Event) any { return e.Int32() }, int32(-1 << 31), 4},
21+ {"int32 at offset", []byte{9, 9, 9, 9, 7, 0, 0, 0}, 4,
22+ func(e *Event) any { return e.Int32() }, int32(7), 8},
23+ {"int32 truncated", []byte{1, 2, 3}, 0,
24+ func(e *Event) any { return e.Int32() }, int32(0), 0},
25+ {"fixed positive", []byte{0x80, 0x01, 0, 0}, 0, // 384/256 = 1.5
26+ func(e *Event) any { return e.Fixed() }, Fixed(384), 4},
27+ {"fixed negative", []byte{0x00, 0xff, 0xff, 0xff}, 0, // -256/256 = -1
28+ func(e *Event) any { return e.Fixed() }, Fixed(-256), 4},
29+ {"fixed zero", []byte{0, 0, 0, 0}, 0,
30+ func(e *Event) any { return e.Fixed() }, Fixed(0), 4},
31+ {"fixed truncated", []byte{1}, 0,
32+ func(e *Event) any { return e.Fixed() }, Fixed(0), 0},
33+ {"array aligned", []byte{4, 0, 0, 0, 1, 2, 3, 4, 0xee}, 0,
34+ func(e *Event) any { return e.Array() }, []byte{1, 2, 3, 4}, 8},
35+ {"array padded", []byte{5, 0, 0, 0, 1, 2, 3, 4, 5, 0, 0, 0, 0xee}, 0,
36+ func(e *Event) any { return e.Array() }, []byte{1, 2, 3, 4, 5}, 12},
37+ {"array zero length", []byte{0, 0, 0, 0, 0xee}, 0,
38+ func(e *Event) any { return e.Array() }, []byte(nil), 4},
39+ {"array length past end", []byte{9, 0, 0, 0, 1, 2, 3, 4}, 0,
40+ func(e *Event) any { return e.Array() }, []byte(nil), 4},
41+ {"array truncated header", []byte{4, 0, 0}, 0,
42+ func(e *Event) any { return e.Array() }, []byte(nil), 0},
43+ {"array at offset", []byte{0xaa, 0xaa, 0xaa, 0xaa, 2, 0, 0, 0, 7, 8, 0, 0}, 4,
44+ func(e *Event) any { return e.Array() }, []byte{7, 8}, 12},
45+ }
46+ for _, tt := range tests {
47+ t.Run(tt.name, func(t *testing.T) {
48+ e := &Event{data: tt.data, offset: tt.offset}
49+ got := tt.read(e)
50+ if b, ok := tt.want.([]byte); ok {
51+ if !bytes.Equal(got.([]byte), b) || (got.([]byte) == nil) != (b == nil) {
52+ t.Fatalf("got %v, want %v", got, b)
53+ }
54+ } else if got != tt.want {
55+ t.Fatalf("got %v (%T), want %v (%T)", got, got, tt.want, tt.want)
56+ }
57+ if e.offset != tt.wantOffset {
58+ t.Fatalf("offset %d, want %d", e.offset, tt.wantOffset)
59+ }
60+ })
61+ }
62+
63+ t.Run("array is a copy", func(t *testing.T) {
64+ data := []byte{4, 0, 0, 0, 1, 2, 3, 4}
65+ e := &Event{data: data}
66+ got := e.Array()
67+ data[4] = 0xff
68+ if got[0] != 1 {
69+ t.Fatal("Array aliases the receive buffer")
70+ }
71+ })
72+}
@@ -0,0 +1,72 @@
1+package wlturbo
2+
3+import (
4+ "bytes"
5+ "testing"
6+)
7+
8+func TestEventDecoders(t *testing.T) {
9+ tests := []struct {
10+ name string
11+ data []byte
12+ offset int
13+ read func(*Event) any
14+ want any
15+ wantOffset int
16+ }{
17+ {"int32 negative", []byte{0xfe, 0xff, 0xff, 0xff}, 0,
18+ func(e *Event) any { return e.Int32() }, int32(-2), 4},
19+ {"int32 min", []byte{0, 0, 0, 0x80}, 0,
20+ func(e *Event) any { return e.Int32() }, int32(-1 << 31), 4},
21+ {"int32 at offset", []byte{9, 9, 9, 9, 7, 0, 0, 0}, 4,
22+ func(e *Event) any { return e.Int32() }, int32(7), 8},
23+ {"int32 truncated", []byte{1, 2, 3}, 0,
24+ func(e *Event) any { return e.Int32() }, int32(0), 0},
25+ {"fixed positive", []byte{0x80, 0x01, 0, 0}, 0, // 384/256 = 1.5
26+ func(e *Event) any { return e.Fixed() }, Fixed(384), 4},
27+ {"fixed negative", []byte{0x00, 0xff, 0xff, 0xff}, 0, // -256/256 = -1
28+ func(e *Event) any { return e.Fixed() }, Fixed(-256), 4},
29+ {"fixed zero", []byte{0, 0, 0, 0}, 0,
30+ func(e *Event) any { return e.Fixed() }, Fixed(0), 4},
31+ {"fixed truncated", []byte{1}, 0,
32+ func(e *Event) any { return e.Fixed() }, Fixed(0), 0},
33+ {"array aligned", []byte{4, 0, 0, 0, 1, 2, 3, 4, 0xee}, 0,
34+ func(e *Event) any { return e.Array() }, []byte{1, 2, 3, 4}, 8},
35+ {"array padded", []byte{5, 0, 0, 0, 1, 2, 3, 4, 5, 0, 0, 0, 0xee}, 0,
36+ func(e *Event) any { return e.Array() }, []byte{1, 2, 3, 4, 5}, 12},
37+ {"array zero length", []byte{0, 0, 0, 0, 0xee}, 0,
38+ func(e *Event) any { return e.Array() }, []byte(nil), 4},
39+ {"array length past end", []byte{9, 0, 0, 0, 1, 2, 3, 4}, 0,
40+ func(e *Event) any { return e.Array() }, []byte(nil), 4},
41+ {"array truncated header", []byte{4, 0, 0}, 0,
42+ func(e *Event) any { return e.Array() }, []byte(nil), 0},
43+ {"array at offset", []byte{0xaa, 0xaa, 0xaa, 0xaa, 2, 0, 0, 0, 7, 8, 0, 0}, 4,
44+ func(e *Event) any { return e.Array() }, []byte{7, 8}, 12},
45+ }
46+ for _, tt := range tests {
47+ t.Run(tt.name, func(t *testing.T) {
48+ e := &Event{data: tt.data, offset: tt.offset}
49+ got := tt.read(e)
50+ if b, ok := tt.want.([]byte); ok {
51+ if !bytes.Equal(got.([]byte), b) || (got.([]byte) == nil) != (b == nil) {
52+ t.Fatalf("got %v, want %v", got, b)
53+ }
54+ } else if got != tt.want {
55+ t.Fatalf("got %v (%T), want %v (%T)", got, got, tt.want, tt.want)
56+ }
57+ if e.offset != tt.wantOffset {
58+ t.Fatalf("offset %d, want %d", e.offset, tt.wantOffset)
59+ }
60+ })
61+ }
62+
63+ t.Run("array is a copy", func(t *testing.T) {
64+ data := []byte{4, 0, 0, 0, 1, 2, 3, 4}
65+ e := &Event{data: data}
66+ got := e.Array()
67+ data[4] = 0xff
68+ if got[0] != 1 {
69+ t.Fatal("Array aliases the receive buffer")
70+ }
71+ })
72+}

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