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Extend Span<byte>.IndexOfAny(..., ROS) tests #33185

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stephentoub merged 2 commits into from
Nov 2, 2018
Merged

Extend Span<byte>.IndexOfAny(..., ROS) tests #33185

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836742e
Extend Span<byte>.IndexOfAny(..., ROS) tests
benaadams Nov 1, 2018
d8f8258
Simplify tests
benaadams Nov 2, 2018
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92 changes: 54 additions & 38 deletions src/System.Memory/tests/ReadOnlySpan/IndexOfAny.byte.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -58,9 +58,10 @@ public static void IndexOfAnyStrings_Byte(string raw, string search, char expect
[Fact]
public static void ZeroLengthIndexOfTwo_Byte()
{
ReadOnlySpan<byte> sp = new ReadOnlySpan<byte>(Array.Empty<byte>());
int idx = sp.IndexOfAny<byte>(0, 0);
Assert.Equal(-1, idx);
ReadOnlySpan<byte> span = new ReadOnlySpan<byte>(Array.Empty<byte>());

Assert.Equal(-1, span.IndexOfAny<byte>(0, 0));
Assert.Equal(-1, span.IndexOfAny(new byte[2]));
}

[Fact]
Expand All @@ -80,8 +81,9 @@ public static void DefaultFilledIndexOfTwo_Byte()
int index = rnd.Next(0, 2) == 0 ? 0 : 1;
byte target0 = targets[index];
byte target1 = targets[(index + 1) % 2];
int idx = span.IndexOfAny(target0, target1);
Assert.Equal(0, idx);

Assert.Equal(0, span.IndexOfAny(target0, target1));
Assert.Equal(0, span.IndexOfAny(new[] { target0, target1 }));
}
}
}
Expand All @@ -102,24 +104,27 @@ public static void TestMatchTwo_Byte()
{
byte target0 = a[targetIndex];
byte target1 = 0;
int idx = span.IndexOfAny(target0, target1);
Assert.Equal(targetIndex, idx);

Assert.Equal(targetIndex, span.IndexOfAny(target0, target1));
Assert.Equal(targetIndex, span.IndexOfAny(new[] { target0, target1 }));
}

for (int targetIndex = 0; targetIndex < length - 1; targetIndex++)
{
byte target0 = a[targetIndex];
byte target1 = a[targetIndex + 1];
int idx = span.IndexOfAny(target0, target1);
Assert.Equal(targetIndex, idx);

Assert.Equal(targetIndex, span.IndexOfAny(target0, target1));
Assert.Equal(targetIndex, span.IndexOfAny(new[] { target0, target1 }));
}

for (int targetIndex = 0; targetIndex < length - 1; targetIndex++)
{
byte target0 = 0;
byte target1 = a[targetIndex + 1];
int idx = span.IndexOfAny(target0, target1);
Assert.Equal(targetIndex + 1, idx);

Assert.Equal(targetIndex + 1, span.IndexOfAny(target0, target1));
Assert.Equal(targetIndex + 1, span.IndexOfAny(new[] { target0, target1 }));
}
}
}
Expand All @@ -135,8 +140,8 @@ public static void TestNoMatchTwo_Byte()
byte target1 = (byte)rnd.Next(1, 256);
ReadOnlySpan<byte> span = new ReadOnlySpan<byte>(a);

int idx = span.IndexOfAny(target0, target1);
Assert.Equal(-1, idx);
Assert.Equal(-1, span.IndexOfAny(target0, target1));
Assert.Equal(-1, span.IndexOfAny(new[] { target0, target1 }));
}
}

Expand All @@ -157,8 +162,9 @@ public static void TestMultipleMatchTwo_Byte()
a[length - 3] = 200;

ReadOnlySpan<byte> span = new ReadOnlySpan<byte>(a);
int idx = span.IndexOfAny<byte>(200, 200);
Assert.Equal(length - 3, idx);

Assert.Equal(length - 3, span.IndexOfAny<byte>(200, 200));
Assert.Equal(length - 3, span.IndexOfAny<byte>(new byte[] { 200, 200 }));
}
}

Expand All @@ -171,8 +177,9 @@ public static void MakeSureNoChecksGoOutOfRangeTwo_Byte()
a[0] = 99;
a[length + 1] = 98;
ReadOnlySpan<byte> span = new ReadOnlySpan<byte>(a, 1, length - 1);
int index = span.IndexOfAny<byte>(99, 98);
Assert.Equal(-1, index);

Assert.Equal(-1, span.IndexOfAny<byte>(99, 98));
Assert.Equal(-1, span.IndexOfAny<byte>(new byte[] { 99, 98 }));
}

for (int length = 1; length < byte.MaxValue; length++)
Expand All @@ -181,17 +188,19 @@ public static void MakeSureNoChecksGoOutOfRangeTwo_Byte()
a[0] = 99;
a[length + 1] = 99;
ReadOnlySpan<byte> span = new ReadOnlySpan<byte>(a, 1, length - 1);
int index = span.IndexOfAny<byte>(99, 99);
Assert.Equal(-1, index);

Assert.Equal(-1, span.IndexOfAny<byte>(99, 99));
Assert.Equal(-1, span.IndexOfAny<byte>(new byte[] { 99, 99 }));
}
}

[Fact]
public static void ZeroLengthIndexOfThree_Byte()
{
ReadOnlySpan<byte> sp = new ReadOnlySpan<byte>(Array.Empty<byte>());
int idx = sp.IndexOfAny<byte>(0, 0, 0);
Assert.Equal(-1, idx);
ReadOnlySpan<byte> span = new ReadOnlySpan<byte>(Array.Empty<byte>());

Assert.Equal(-1, span.IndexOfAny<byte>(0, 0, 0));
Assert.Equal(-1, span.IndexOfAny(new byte[3]));
}

[Fact]
Expand All @@ -212,8 +221,9 @@ public static void DefaultFilledIndexOfThree_Byte()
byte target0 = targets[index];
byte target1 = targets[(index + 1) % 2];
byte target2 = targets[(index + 1) % 3];
int idx = span.IndexOfAny(target0, target1, target2);
Assert.Equal(0, idx);

Assert.Equal(0, span.IndexOfAny(target0, target1, target2));
Assert.Equal(0, span.IndexOfAny(new[] { target0, target1, target2 }));
}
}
}
Expand All @@ -235,26 +245,29 @@ public static void TestMatchThree_Byte()
byte target0 = a[targetIndex];
byte target1 = 0;
byte target2 = 0;
int idx = span.IndexOfAny(target0, target1, target2);
Assert.Equal(targetIndex, idx);

Assert.Equal(targetIndex, span.IndexOfAny(target0, target1, target2));
Assert.Equal(targetIndex, span.IndexOfAny(new[] { target0, target1, target2 }));
}

for (int targetIndex = 0; targetIndex < length - 2; targetIndex++)
{
byte target0 = a[targetIndex];
byte target1 = a[targetIndex + 1];
byte target2 = a[targetIndex + 2];
int idx = span.IndexOfAny(target0, target1, target2);
Assert.Equal(targetIndex, idx);

Assert.Equal(targetIndex, span.IndexOfAny(target0, target1, target2));
Assert.Equal(targetIndex, span.IndexOfAny(new[] { target0, target1, target2 }));
}

for (int targetIndex = 0; targetIndex < length - 2; targetIndex++)
{
byte target0 = 0;
byte target1 = 0;
byte target2 = a[targetIndex + 2];
int idx = span.IndexOfAny(target0, target1, target2);
Assert.Equal(targetIndex + 2, idx);

Assert.Equal(targetIndex + 2, span.IndexOfAny(target0, target1, target2));
Assert.Equal(targetIndex + 2, span.IndexOfAny(new[] { target0, target1, target2 }));
}
}
}
Expand All @@ -271,8 +284,8 @@ public static void TestNoMatchThree_Byte()
byte target2 = (byte)rnd.Next(1, 256);
ReadOnlySpan<byte> span = new ReadOnlySpan<byte>(a);

int idx = span.IndexOfAny(target0, target1, target2);
Assert.Equal(-1, idx);
Assert.Equal(-1, span.IndexOfAny(target0, target1, target2));
Assert.Equal(-1, span.IndexOfAny(new[] { target0, target1, target2 }));
}
}

Expand All @@ -294,8 +307,9 @@ public static void TestMultipleMatchThree_Byte()
a[length - 4] = 200;

ReadOnlySpan<byte> span = new ReadOnlySpan<byte>(a);
int idx = span.IndexOfAny<byte>(200, 200, 200);
Assert.Equal(length - 4, idx);

Assert.Equal(length - 4, span.IndexOfAny<byte>(200, 200, 200));
Assert.Equal(length - 4, span.IndexOfAny<byte>(new byte[] { 200, 200, 200 }));
}
}

Expand All @@ -308,8 +322,9 @@ public static void MakeSureNoChecksGoOutOfRangeThree_Byte()
a[0] = 99;
a[length + 1] = 98;
ReadOnlySpan<byte> span = new ReadOnlySpan<byte>(a, 1, length - 1);
int index = span.IndexOfAny<byte>(99, 98, 99);
Assert.Equal(-1, index);

Assert.Equal(-1, span.IndexOfAny<byte>(99, 98, 99));
Assert.Equal(-1, span.IndexOfAny<byte>(new byte[] { 99, 98, 99 }));
}

for (int length = 1; length < byte.MaxValue; length++)
Expand All @@ -318,8 +333,9 @@ public static void MakeSureNoChecksGoOutOfRangeThree_Byte()
a[0] = 99;
a[length + 1] = 99;
ReadOnlySpan<byte> span = new ReadOnlySpan<byte>(a, 1, length - 1);
int index = span.IndexOfAny<byte>(99, 99, 99);
Assert.Equal(-1, index);

Assert.Equal(-1, span.IndexOfAny<byte>(99, 99, 99));
Assert.Equal(-1, span.IndexOfAny<byte>(new byte[] { 99, 99, 99 }));
}
}

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