public void Count_AddSingleValueThenQueryCount_ReturnsValueCountWithSpecialValues()
{
MockHeaders headers = new MockHeaders(knownHeader, new MockHeaderParser(typeof(string)));
HttpHeaderValueCollection<string> collection = new HttpHeaderValueCollection<string>(knownHeader, headers,
"special");
Assert.Equal(0, collection.Count);
headers.Add(knownHeader, "value2");
Assert.Equal(1, collection.Count);
headers.Clear();
headers.Add(knownHeader, "special");
Assert.Equal(1, collection.Count);
headers.Add(knownHeader, "special");
headers.Add(knownHeader, "special");
Assert.Equal(3, collection.Count);
}
public void Count_AddSingleValueThenQueryCount_ReturnsValueCountWithSpecialValues()
{
MockHeaders headers = new MockHeaders();
HttpHeaderValueCollection <string> collection = new HttpHeaderValueCollection <string>(knownStringHeader, headers,
"special");
Assert.Equal(0, collection.Count);
headers.Add(knownStringHeader, "value2");
Assert.Equal(1, collection.Count);
headers.Clear();
headers.Add(knownStringHeader, "special");
Assert.Equal(1, collection.Count);
headers.Add(knownStringHeader, "special");
headers.Add(knownStringHeader, "special");
Assert.Equal(3, collection.Count);
}
public void CopyTo_AddSingleValue_ContainsSingleValue()
{
MockHeaders headers = new MockHeaders();
HttpHeaderValueCollection <Uri> collection = new HttpHeaderValueCollection <Uri>(knownUriHeader, headers,
specialValue);
collection.Add(new Uri("http://www.example.org/"));
Uri[] array = new Uri[1];
collection.CopyTo(array, 0);
Assert.Equal(new Uri("http://www.example.org/"), array[0]);
// Now only set the special value: nothing should be added to the array.
headers.Clear();
headers.Add(knownUriHeader, specialValue.ToString());
array[0] = null;
collection.CopyTo(array, 0);
Assert.Equal(specialValue, array[0]);
}
public void CopyTo_AddSingleValue_ContainsSingleValue()
{
MockHeaders headers = new MockHeaders(knownHeader, new MockHeaderParser(typeof(Uri)));
HttpHeaderValueCollection<Uri> collection = new HttpHeaderValueCollection<Uri>(knownHeader, headers,
specialValue);
collection.Add(new Uri("http://www.example.org/"));
Uri[] array = new Uri[1];
collection.CopyTo(array, 0);
Assert.Equal(new Uri("http://www.example.org/"), array[0]);
// Now only set the special value: nothing should be added to the array.
headers.Clear();
headers.Add(knownHeader, specialValue.ToString());
array[0] = null;
collection.CopyTo(array, 0);
Assert.Equal(specialValue, array[0]);
}
public void Add_AddValueContainingNewLine_NewLineFollowedByWhitespaceIsOKButNewLineFollowedByNonWhitespaceIsRejected()
{
MockHeaders headers = new MockHeaders();
headers.Clear();
headers.Add("custom", "value\r");
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal("value\r", headers.First().Value.First());
headers.Clear();
Assert.Throws<FormatException>(() => { headers.Add("custom", new string[] { "valid\n", "invalid\r\nother" }); });
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal("valid\n", headers.First().Value.First());
}
public void TryAddWithoutValidation_AddValueContainingNewLine_NewLineFollowedByWhitespaceIsOKButNewLineFollowedByNonWhitespaceIsRejected()
{
MockHeaders headers = new MockHeaders();
// The header parser rejects both of the following values. Both values contain new line chars. According
// to the RFC, LWS supports newlines followed by whitespaces. I.e. the first value gets rejected by the
// parser, but added to the list of invalid values.
headers.TryAddWithoutValidation(knownHeader, invalidHeaderValue + "\r\n other: value"); // OK, LWS is allowed
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal(invalidHeaderValue + "\r\n other: value", headers.First().Value.First());
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
// This value is considered invalid (newline char followed by non-whitepace). However, since
// TryAddWithoutValidation() only causes the header value to be analyzed when it gets actually accessed, no
// exception is thrown. Instead the value is discarded and a warning is logged.
headers.Clear();
headers.TryAddWithoutValidation(knownHeader, invalidHeaderValue + "\r\nother:value");
Assert.False(headers.Contains(knownHeader));
Assert.Equal(0, headers.Count());
// Adding newline followed by whitespace to a custom header is OK.
headers.Clear();
headers.TryAddWithoutValidation("custom", "value\r\n other: value"); // OK, LWS is allowed
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal("value\r\n other: value", headers.First().Value.First());
// Adding newline followed by non-whitespace chars is invalid. The value is discarded and a warning is
// logged.
headers.Clear();
headers.TryAddWithoutValidation("custom", "value\r\nother: value");
Assert.False(headers.Contains("custom"));
Assert.Equal(0, headers.Count());
// Also ending a value with newline is invalid. Verify that valid values are added.
headers.Clear();
headers.Parser.TryParseValueCallCount = 0;
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "\rvalid");
headers.TryAddWithoutValidation(knownHeader, invalidHeaderValue + "\r\n");
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "\n," + invalidHeaderValue + "\r\nother");
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal(parsedPrefix + "\rvalid", headers.First().Value.First());
Assert.Equal(4, headers.Parser.TryParseValueCallCount);
headers.Clear();
headers.TryAddWithoutValidation("custom", "value\r\ninvalid");
headers.TryAddWithoutValidation("custom", "value\r\n valid");
headers.TryAddWithoutValidation("custom", "validvalue, invalid\r\nvalue");
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal("value\r\n valid", headers.First().Value.First());
}
public void ContainsParsedValue_AddOneValueToKnownHeaderAndCompareWithValueThatDiffersInCase_CustomComparerUsedForComparison()
{
MockHeaders headers = new MockHeaders();
headers.AddParsedValue(knownHeader, "value");
// Our custom comparer (MockComparer) does case-insensitive value comparison. Verify that our custom
// comparer is used to compare the header value.
Assert.True(headers.ContainsParsedValue(knownHeader, "VALUE"));
Assert.Equal(1, headers.Parser.MockComparer.EqualsCount);
headers.Clear();
headers.TryAddWithoutValidation(knownHeader, invalidHeaderValue);
Assert.False(headers.ContainsParsedValue(knownHeader, invalidHeaderValue));
}
public void TryAddWithoutValidation_AddEmptyValueString_HeaderWithNoValueAfterParsing()
{
MockHeaders headers = new MockHeaders();
// The parser returns 'true' to indicate that it could parse the value (empty values allowed) and an
// value of 'null'. HttpHeaders will remove the header from the collection since the known header doesn't
// have a value.
headers.TryAddWithoutValidation(knownHeader, string.Empty);
Assert.Equal(0, headers.Parser.TryParseValueCallCount);
Assert.Equal(0, headers.Count());
headers.Clear();
headers.TryAddWithoutValidation("custom", (string)null);
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal(string.Empty, headers.GetValues("custom").First());
}
public void Clear_AddMultipleHeadersAndThenClear_NoHeadersInCollection()
{
MockHeaders headers = new MockHeaders();
headers.Add(knownHeader, rawPrefix + "1");
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "2");
headers.Add("custom1", "customValue1");
headers.Add("custom2", "customValue2");
headers.Add("custom3", "customValue3");
// Only 1 value should get parsed (call to Add() with known header value).
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
// We added 4 different headers
Assert.Equal(4, headers.Count());
headers.Clear();
Assert.Equal(0, headers.Count());
// The call to Count() triggers a TryParseValue for the TryAddWithoutValidation() value. Clear() should
// not cause any additional parsing operations.
Assert.Equal(2, headers.Parser.TryParseValueCallCount);
}