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fix: generate canonical bools in NetworkVariable serialization tests #4198

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fix: generate canonical bools in NetworkVariable serialization tests #4198

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9d1ac26
test: generate canonical bools in NetworkVariable serialization tests
NoelStephensUnity Oct 19, 2026
329b637
test: use RandGenBool for the NativeArray<bool> case
NoelStephensUnity Oct 19, 2026
813d44a
Merge branch 'develop-3.x.x' into fix/test-canonical-random-bools
NoelStephensUnity Oct 21, 2026
ba2ae2f
test: make changed2 always differ from original2 in collection genera…
NoelStephensUnity Oct 21, 2026
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48 changes: 35 additions & 13 deletions com.unity.netcode.gameobjects/Tests/Runtime/NetworkVariable/NetworkVariableTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1796,6 +1796,13 @@ public unsafe T RandGenBytes<T>(System.Random rand) where T : unmanaged
return t;
}

// RandGenBytes<bool> yields bools whose byte is neither 0 nor 1, which IL2CPP on ARM64 can
// compare as unequal even though both print True.
public bool RandGenBool(System.Random rand)
{
return rand.Next(2) == 1;
}

public FixedString32Bytes RandGenFixedString32(System.Random rand)
{
var s = new FixedString32Bytes();
Expand Down Expand Up @@ -1863,6 +1870,11 @@ public string ArrayStr<T>(NativeArray<T> arr) where T : unmanaged
{
var idx = rand.Next(changed2.Length - 1);
var item = generator(rand);
// Ensures changed2 differs from original2 when its length matches original2.
while (idx < original2.Length && EqualityComparer<T>.Default.Equals(item, original2[idx]))
{
item = generator(rand);
}
changed2[idx] = item;
}

Expand Down Expand Up @@ -1940,7 +1952,7 @@ public void WhenSerializingAndDeserializingVeryLargeValueTypeNativeArrayNetworkV
}
else if (testType == typeof(bool))
{
(var original, var original2, var changed, var changed2) = GetArarys((rand) => rand.Next(2) == 1);
(var original, var original2, var changed, var changed2) = GetArarys(RandGenBool);
TestValueTypeNativeArray(original, changed);
TestValueTypeNativeArray(original2, changed2);
}
Expand Down Expand Up @@ -2158,6 +2170,11 @@ public string DictionaryStr<TKey, TVal>(Dictionary<TKey, TVal> list)
{
var idx = rand.Next(changed2.Count - 1);
var item = generator(rand);
// Ensures changed2 differs from original2 when no elements are added or removed.
while (EqualityComparer<T>.Default.Equals(item, original2[idx]))
{
item = generator(rand);
}
changed2[idx] = item;
}

Expand Down Expand Up @@ -2401,7 +2418,7 @@ public void WhenSerializingAndDeserializingVeryLargeListNetworkVariables_ValuesA
}
else if (testType == typeof(bool))
{
(var original, var original2, var changed, var changed2) = GetLists(RandGenBytes<bool>);
(var original, var original2, var changed, var changed2) = GetLists(RandGenBool);
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TestList(original, changed);
TestList(original2, changed2);
}
Expand Down Expand Up @@ -2594,7 +2611,7 @@ public void WhenSerializingAndDeserializingVeryLargeHashSetNetworkVariables_Valu
}
else if (testType == typeof(bool))
{
(var original, var original2, var changed, var changed2) = GetHashSets(RandGenBytes<bool>);
(var original, var original2, var changed, var changed2) = GetHashSets(RandGenBool);
TestHashSet(original, changed);
TestHashSet(original2, changed2);
}
Expand Down Expand Up @@ -2944,27 +2961,27 @@ public void WhenSerializingAndDeserializingVeryLargeDictionaryNetworkVariables_V
{
if (keyType == typeof(byte))
{
(var original, var original2, var changed, var changed2) = GetDictionaries(RandGenBytes<byte>, RandGenBytes<bool>);
(var original, var original2, var changed, var changed2) = GetDictionaries(RandGenBytes<byte>, RandGenBool);
TestDictionary(original, changed);
TestDictionary(original2, changed2);

}
else if (keyType == typeof(ulong))
{
(var original, var original2, var changed, var changed2) = GetDictionaries(RandGenBytes<ulong>, RandGenBytes<bool>);
(var original, var original2, var changed, var changed2) = GetDictionaries(RandGenBytes<ulong>, RandGenBool);
TestDictionary(original, changed);
TestDictionary(original2, changed2);
}
else if (keyType == typeof(Vector2))
{
(var original, var original2, var changed, var changed2) = GetDictionaries((rand) => new Vector2((float)rand.NextDouble(), (float)rand.NextDouble()), RandGenBytes<bool>);
(var original, var original2, var changed, var changed2) = GetDictionaries((rand) => new Vector2((float)rand.NextDouble(), (float)rand.NextDouble()), RandGenBool);
TestDictionary(original, changed);
TestDictionary(original2, changed2);

}
else if (keyType == typeof(HashMapKeyClass))
{
(var original, var original2, var changed, var changed2) = GetDictionaries((rand) => new HashMapKeyClass { Data = RandGenBytes<HashMapKeyStruct>(rand) }, RandGenBytes<bool>);
(var original, var original2, var changed, var changed2) = GetDictionaries((rand) => new HashMapKeyClass { Data = RandGenBytes<HashMapKeyStruct>(rand) }, RandGenBool);
TestDictionary(original, changed);
TestDictionary(original2, changed2);
}
Expand Down Expand Up @@ -3656,6 +3673,11 @@ public string NativeHashMapStr<TKey, TVal>(NativeHashMap<TKey, TVal> list)
{
var idx = rand.Next(changed2.Length - 1);
var item = generator(rand);
// Ensures changed2 differs from original2 when no elements are added or removed.
while (EqualityComparer<T>.Default.Equals(item, original2[idx]))
{
item = generator(rand);
}
changed2[idx] = item;
}

Expand Down Expand Up @@ -3899,7 +3921,7 @@ public void WhenSerializingAndDeserializingVeryLargeValueTypeNativeListNetworkVa
}
else if (testType == typeof(bool))
{
(var original, var original2, var changed, var changed2) = GetNativeLists(RandGenBytes<bool>);
(var original, var original2, var changed, var changed2) = GetNativeLists(RandGenBool);
TestValueTypeNativeList(original, changed);
TestValueTypeNativeList(original2, changed2);
}
Expand Down Expand Up @@ -4088,7 +4110,7 @@ public void WhenSerializingAndDeserializingVeryLargeValueTypeNativeHashSetNetwor
}
else if (testType == typeof(bool))
{
(var original, var original2, var changed, var changed2) = GetNativeHashSets(RandGenBytes<bool>);
(var original, var original2, var changed, var changed2) = GetNativeHashSets(RandGenBool);
TestValueTypeNativeHashSet(original, changed);
TestValueTypeNativeHashSet(original2, changed2);
}
Expand Down Expand Up @@ -4434,27 +4456,27 @@ public void WhenSerializingAndDeserializingVeryLargeValueTypeNativeHashMapNetwor
{
if (keyType == typeof(byte))
{
(var original, var original2, var changed, var changed2) = GetMaps(RandGenBytes<byte>, RandGenBytes<bool>);
(var original, var original2, var changed, var changed2) = GetMaps(RandGenBytes<byte>, RandGenBool);
TestValueTypeNativeHashMap(original, changed);
TestValueTypeNativeHashMap(original2, changed2);

}
else if (keyType == typeof(ulong))
{
(var original, var original2, var changed, var changed2) = GetMaps(RandGenBytes<ulong>, RandGenBytes<bool>);
(var original, var original2, var changed, var changed2) = GetMaps(RandGenBytes<ulong>, RandGenBool);
TestValueTypeNativeHashMap(original, changed);
TestValueTypeNativeHashMap(original2, changed2);
}
else if (keyType == typeof(Vector2))
{
(var original, var original2, var changed, var changed2) = GetMaps((rand) => new Vector2((float)rand.NextDouble(), (float)rand.NextDouble()), RandGenBytes<bool>);
(var original, var original2, var changed, var changed2) = GetMaps((rand) => new Vector2((float)rand.NextDouble(), (float)rand.NextDouble()), RandGenBool);
TestValueTypeNativeHashMap(original, changed);
TestValueTypeNativeHashMap(original2, changed2);

}
else if (keyType == typeof(HashMapKeyStruct))
{
(var original, var original2, var changed, var changed2) = GetMaps(RandGenBytes<HashMapKeyStruct>, RandGenBytes<bool>);
(var original, var original2, var changed, var changed2) = GetMaps(RandGenBytes<HashMapKeyStruct>, RandGenBool);
TestValueTypeNativeHashMap(original, changed);
TestValueTypeNativeHashMap(original2, changed2);
}
Expand Down
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