public void TryAddWithoutValidation_AddSingleValue_ValueParsed()
{
MockHeaders headers = new MockHeaders();
headers.TryAddWithoutValidation(knownHeader, rawPrefix);
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal(parsedPrefix, headers.First().Value.First());
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
}
public void TryAddWithoutValidation_AddTwoSingleValues_BothValuesParsed()
{
MockHeaders headers = new MockHeaders();
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "1");
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "2");
Assert.Equal(0, headers.Parser.TryParseValueCallCount);
Assert.Equal(1, headers.Count());
Assert.Equal(2, headers.First().Value.Count());
Assert.Equal(parsedPrefix + "1", headers.First().Value.ElementAt(0));
Assert.Equal(parsedPrefix + "2", headers.First().Value.ElementAt(1));
Assert.Equal(2, headers.Parser.TryParseValueCallCount);
}
public void TryAddWithoutValidation_AddTwoValidValuesAsOneString_BothValuesParsed()
{
MockHeaders headers = new MockHeaders();
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "1," + rawPrefix + "2");
Assert.Equal(0, headers.Parser.TryParseValueCallCount);
Assert.Equal(1, headers.Count());
Assert.Equal(2, headers.First().Value.Count());
Assert.Equal(parsedPrefix + "1", headers.First().Value.ElementAt(0));
Assert.Equal(parsedPrefix + "2", headers.First().Value.ElementAt(1));
// The parser gets called for each value in the raw string. I.e. if we have 1 raw string containing two
// values, the parser gets called twice.
Assert.Equal(2, headers.Parser.TryParseValueCallCount);
}
public void Add_SingleFirstAddThenTryAddWithoutValidation_TwoParsedValuesAdded()
{
MockHeaders headers = new MockHeaders();
headers.Add(knownHeader, rawPrefix + "1");
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "2");
// Add() should trigger parsing. Since TryAddWithoutValidation() is called afterwards the second value is
// not parsed yet.
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
Assert.Equal(1, headers.Count());
Assert.Equal(2, headers.First().Value.Count());
Assert.Equal(parsedPrefix + "1", headers.First().Value.ElementAt(0));
Assert.Equal(parsedPrefix + "2", headers.First().Value.ElementAt(1));
// Value is already parsed. There shouldn't be additional calls to the parser.
Assert.Equal(2, headers.Parser.TryParseValueCallCount);
}
public void Add_SingleFirstTryAddWithoutValidationForEmptyValueThenAdd_OneParsedValueAddedEmptyIgnored()
{
MockHeaders headers = new MockHeaders();
headers.TryAddWithoutValidation(knownHeader, string.Empty);
headers.Add(knownHeader, rawPrefix + "1");
// Add() should trigger parsing. TryAddWithoutValidation() doesn't trigger parsing, but Add() triggers
// parsing of raw header values (TryParseValue() is called)
Assert.Equal(2, headers.Parser.TryParseValueCallCount);
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal(parsedPrefix + "1", headers.First().Value.ElementAt(0));
// Value is already parsed. There shouldn't be additional calls to the parser.
Assert.Equal(2, headers.Parser.TryParseValueCallCount);
}
public void AddHeaders_SourceHasEmptyHeaderStore_DestinationRemainsUnchanged()
{
Dictionary<string, HttpHeaderParser> parserStore = new Dictionary<string, HttpHeaderParser>();
parserStore.Add("known1", new MockHeaderParser());
MockHeaders source = new MockHeaders(parserStore);
MockHeaders destination = new MockHeaders(parserStore);
destination.Add("known1", rawPrefix);
destination.AddHeaders(source);
Assert.Equal(1, destination.Count());
}
public void TryAddWithoutValidation_AddTwoValuesOneValidOneInvalidAsOneString_RawStringAddedAsInvalid()
{
MockHeaders headers = new MockHeaders();
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "1," + invalidHeaderValue);
Assert.Equal(0, headers.Parser.TryParseValueCallCount);
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
// We expect the value to be returned without change since it couldn't be parsed in its entirety.
Assert.Equal(rawPrefix + "1," + invalidHeaderValue, headers.First().Value.ElementAt(0));
// The parser gets called twice, but the second time it returns false, because it tries to parse
// 'invalidHeaderValue'.
Assert.Equal(2, headers.Parser.TryParseValueCallCount);
}
public void AddHeaders_DestinationHasEmptyHeaderStore_DestinationHeaderStoreGetsCreatedAndValuesAdded()
{
Dictionary<string, HttpHeaderParser> parserStore = new Dictionary<string, HttpHeaderParser>();
parserStore.Add("known1", new MockHeaderParser());
MockHeaders source = new MockHeaders(parserStore);
source.Add("known1", rawPrefix);
MockHeaders destination = new MockHeaders(parserStore);
destination.AddHeaders(source);
Assert.Equal(1, destination.Count());
}
public void Add_MultipleAddThreeValidValuesAsOneString_BothValuesParsed()
{
MockHeaders headers = new MockHeaders();
headers.Add(knownHeader, rawPrefix + "1," + rawPrefix + "2," + rawPrefix + "3");
Assert.Equal(3, headers.Parser.TryParseValueCallCount);
Assert.Equal(1, headers.Count());
Assert.Equal(3, headers.First().Value.Count());
Assert.Equal(parsedPrefix + "1", headers.First().Value.ElementAt(0));
Assert.Equal(parsedPrefix + "2", headers.First().Value.ElementAt(1));
Assert.Equal(parsedPrefix + "3", headers.First().Value.ElementAt(2));
}
public void Add_MultipleAddThreeValidValuesWithOneCall_ValuesParsedCorrectly()
{
MockHeaders headers = new MockHeaders();
string[] values = new string[] { rawPrefix + "1", rawPrefix + "2", rawPrefix + "3" };
headers.Add(knownHeader, values);
// Add() should trigger parsing.
Assert.Equal(3, headers.Parser.TryParseValueCallCount);
Assert.Equal(1, headers.Count());
Assert.Equal(3, headers.First().Value.Count());
Assert.Equal(parsedPrefix + "1", headers.First().Value.ElementAt(0));
Assert.Equal(parsedPrefix + "2", headers.First().Value.ElementAt(1));
Assert.Equal(parsedPrefix + "3", headers.First().Value.ElementAt(2));
// Value is already parsed. There shouldn't be additional calls to the parser.
Assert.Equal(3, headers.Parser.TryParseValueCallCount);
}
public void TryAddWithoutValidation_AddMultipleValueStringToSingleValueHeaders_MultipleValueStringAddedAsInvalid()
{
MockHeaderParser parser = new MockHeaderParser(false); // doesn't support multiple values.
MockHeaders headers = new MockHeaders(parser);
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "1," + rawPrefix + "2");
Assert.Equal(0, headers.Parser.TryParseValueCallCount);
// Since parsing the header value fails because it is composed of 2 values, the original string is added
// to the list of 'invalid values'. Therefore we only have 1 header value (the original string).
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal(rawPrefix + "1," + rawPrefix + "2", headers.First().Value.First());
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
}
public void TryAddWithoutValidation_AddMultipleValueToSingleValueHeaders_FirstHeaderAddedOthersAreInvalid()
{
MockHeaderParser parser = new MockHeaderParser(false); // doesn't support multiple values.
MockHeaders headers = new MockHeaders(parser);
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "1");
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "2");
Assert.Equal(0, headers.Parser.TryParseValueCallCount);
Assert.Equal(1, headers.Count());
Assert.Equal(2, headers.First().Value.Count());
// Note that the first value was parsed and added to the 'parsed values' list. The second value however
// was added to the 'invalid values' list since the header doesn't support multiple values.
Assert.Equal(parsedPrefix + "1", headers.First().Value.ElementAt(0));
Assert.Equal(rawPrefix + "2", headers.First().Value.ElementAt(1));
// The parser is only called once for the first value. HttpHeaders doesn't invoke the parser for
// additional values if the parser only supports one value.
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
}
public void TryAddWithoutValidation_AddNullAndEmptyValuesToUnknownHeader_TwoEmptyStringsAddedAsValues()
{
MockHeaders headers = new MockHeaders();
headers.TryAddWithoutValidation(customHeader, (string)null);
headers.TryAddWithoutValidation(customHeader, string.Empty);
Assert.Equal(1, headers.Count());
Assert.Equal(2, headers.First().Value.Count());
// TryAddWithoutValidation() adds 'null' as string.empty to distinguish between an empty raw value and no raw
// value. For custom headers we just add what the user gives us. I.e. the result is a header with two empty
// values.
Assert.Equal(string.Empty, headers.First().Value.ElementAt(0));
Assert.Equal(string.Empty, headers.First().Value.ElementAt(1));
}
public void TryAddWithoutValidation_AddNullAndEmptyValuesToKnownHeader_HeaderRemovedFromCollection()
{
MockHeaders headers = new MockHeaders();
headers.TryAddWithoutValidation(knownHeader, (string)null);
headers.TryAddWithoutValidation(knownHeader, string.Empty);
Assert.Equal(0, headers.Parser.TryParseValueCallCount);
Assert.Equal(0, headers.Count());
// TryAddWithoutValidation() adds 'null' as string.empty to distinguish between an empty raw value and no raw
// value. When the parser is called later, the parser can decide whether empty strings are valid or not.
// In our case the MockParser returns 'success' with a parsed value of 'null' indicating that it is OK to
// have empty values, but they should be ignored.
Assert.Equal(2, headers.Parser.EmptyValueCount);
Assert.Equal(2, headers.Parser.TryParseValueCallCount);
}
public void TryAddWithoutValidation_AddValueForUnknownHeader_ValueAddedToStore()
{
MockHeaders headers = new MockHeaders();
headers.TryAddWithoutValidation(customHeader, "custom value");
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal("custom value", headers.First().Value.First());
Assert.Equal(0, headers.Parser.TryParseValueCallCount);
}
public void TryAddWithoutValidation_AddNullValueForUnknownHeader_EmptyStringAddedAsValue()
{
MockHeaders headers = new MockHeaders();
headers.TryAddWithoutValidation(customHeader, (string)null);
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
// 'null' values are internally stored as string.Empty. Since we added a custom header, there is no
// parser and the empty string is just added to the list of 'parsed values'.
Assert.Equal(string.Empty, headers.First().Value.First());
Assert.Equal(0, headers.Parser.TryParseValueCallCount);
}
public void AddHeaders_SourceHasInvalidHeaderValues_InvalidHeadersRemovedFromSourceAndNotCopiedToDestination()
{
Dictionary<string, HttpHeaderParser> parserStore = new Dictionary<string, HttpHeaderParser>();
parserStore.Add("known", new MockHeaderParser());
MockHeaders source = new MockHeaders(parserStore);
source.TryAddWithoutValidation("known", invalidHeaderValue + "\r\ninvalid");
source.TryAddWithoutValidation("custom", "invalid\r\nvalue");
MockHeaders destination = new MockHeaders(parserStore);
destination.AddHeaders(source);
Assert.Equal(0, source.Count());
Assert.False(source.Contains("known"), "source contains 'known' header.");
Assert.False(source.Contains("custom"), "source contains 'custom' header.");
Assert.Equal(0, destination.Count());
Assert.False(destination.Contains("known"), "destination contains 'known' header.");
Assert.False(destination.Contains("custom"), "destination contains 'custom' header.");
}
public void Add_SingleAddThenTryAddWithoutValidationThenAdd_ThreeParsedValuesAdded()
{
MockHeaders headers = new MockHeaders();
headers.Add(knownHeader, rawPrefix + "1");
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "2");
headers.Add(knownHeader, rawPrefix + "3");
// The second Add() triggers also parsing of the value added by TryAddWithoutValidation()
Assert.Equal(3, headers.Parser.TryParseValueCallCount);
Assert.Equal(1, headers.Count());
Assert.Equal(3, headers.First().Value.Count());
Assert.Equal(parsedPrefix + "1", headers.First().Value.ElementAt(0));
Assert.Equal(parsedPrefix + "2", headers.First().Value.ElementAt(1));
Assert.Equal(parsedPrefix + "3", headers.First().Value.ElementAt(2));
// Value is already parsed. There shouldn't be additional calls to the parser.
Assert.Equal(3, headers.Parser.TryParseValueCallCount);
}
public void Add_SingleFirstAddThenTryAddWithoutValidationToSingleValueHeader_BothParsedAndInvalidValue()
{
MockHeaderParser parser = new MockHeaderParser(false); // doesn't support multiple values.
MockHeaders headers = new MockHeaders(parser);
headers.Add(knownHeader, rawPrefix + "1");
headers.TryAddWithoutValidation(knownHeader, rawPrefix + "2");
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
// Add() succeeds since we don't have a value added yet. TryAddWithoutValidation() also succeeds, however
// the value is added to the 'invalid values' list when retrieved.
Assert.Equal(1, headers.Count());
Assert.Equal(2, headers.First().Value.Count());
Assert.Equal(parsedPrefix + "1", headers.First().Value.ElementAt(0));
Assert.Equal(rawPrefix + "2", headers.First().Value.ElementAt(1));
// Note that TryParseValue() is not called because HttpHeaders sees that there is already a value
// so it adds the raw value to 'invalid values'.
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
}
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 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 RemoveParsedValue_AddInvalidValueAndRemoveValidValue_InvalidValueRemains()
{
MockHeaders headers = new MockHeaders();
headers.TryAddWithoutValidation(knownHeader, invalidHeaderValue);
// Remove a valid value which is not in the store.
Assert.False(headers.RemoveParsedValue(knownHeader, parsedPrefix));
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
// Note that when the last value of a header gets removed, the whole header gets removed.
Assert.Equal(1, headers.Count());
Assert.Equal(invalidHeaderValue, headers.GetValues(knownHeader).First());
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
// Remove the value again: It shouldn't be found in the store.
Assert.False(headers.RemoveParsedValue(knownHeader, parsedPrefix + "1"));
}
public void Add_SingleAddCustomHeaderWithNullValue_HeaderIsAddedWithEmptyStringValue()
{
MockHeaders headers = new MockHeaders();
headers.Add(customHeader, (string)null);
Assert.Equal(0, headers.Parser.TryParseValueCallCount);
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal(string.Empty, headers.First().Value.ElementAt(0));
// We're using a custom header. No parsing should be triggered.
Assert.Equal(0, headers.Parser.TryParseValueCallCount);
}
public void TryAddWithoutValidation_AddNullValueForKnownHeader_ParserRejectsNullEmptyStringAdded()
{
MockHeaders headers = new MockHeaders();
headers.TryAddWithoutValidation(knownHeader, (string)null);
Assert.Equal(0, headers.Parser.TryParseValueCallCount);
// MockParser is called with an empty string and decides that it is OK to have empty values but they
// shouldn't be added to the list of header values. HttpHeaders will remove the header since it doesn't
// have values.
Assert.Equal(0, headers.Count());
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
}
public void RemoveParsedValue_AddValueAndRemoveIt_NoHeader()
{
MockHeaders headers = new MockHeaders();
headers.Add(knownHeader, rawPrefix + "1");
// Remove the parsed value (note the original string 'raw1' was "parsed" to 'parsed1')
Assert.True(headers.RemoveParsedValue(knownHeader, parsedPrefix + "1"));
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
// Note that when the last value of a header gets removed, the whole header gets removed.
Assert.Equal(0, headers.Count());
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
// Remove the value again: It shouldn't be found in the store.
Assert.False(headers.RemoveParsedValue(knownHeader, parsedPrefix + "1"));
}
public void Add_SingleAddValidValue_ValueParsedCorrectly()
{
MockHeaders headers = new MockHeaders();
headers.Add(knownHeader, rawPrefix);
// Add() should trigger parsing.
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal(parsedPrefix, headers.First().Value.ElementAt(0));
// Value is already parsed. There shouldn't be additional calls to the parser.
Assert.Equal(1, headers.Parser.TryParseValueCallCount);
}
public void RemoveParsedValue_AddTwoValuesAndRemoveThem_NoHeader()
{
MockHeaders headers = new MockHeaders();
headers.Add(knownHeader, rawPrefix + "1");
headers.Add(knownHeader, rawPrefix + "2");
// Remove the parsed value (note the original string 'raw1' was "parsed" to 'parsed1')
Assert.True(headers.RemoveParsedValue(knownHeader, parsedPrefix + "1"));
Assert.True(headers.RemoveParsedValue(knownHeader, parsedPrefix + "2"));
Assert.Equal(2, headers.Parser.TryParseValueCallCount);
// Note that when the last value of a header gets removed, the whole header gets removed.
Assert.Equal(0, headers.Count());
Assert.Equal(2, headers.Parser.TryParseValueCallCount);
}
public void Add_SingleAddEmptyValueMultipleTimes_EmptyHeaderAdded()
{
MockHeaders headers = new MockHeaders();
headers.Add(knownHeader, (string)null);
headers.Add(knownHeader, string.Empty);
headers.Add(knownHeader, string.Empty);
// Add() should trigger parsing.
Assert.Equal(3, headers.Parser.TryParseValueCallCount);
Assert.Equal(0, headers.Count());
}
public void RemoveParsedValue_AddTwoValuesAndRemoveSecondOne_FirstValueRemains()
{
MockHeaders headers = new MockHeaders();
headers.Add(knownHeader, rawPrefix + "1");
headers.Add(knownHeader, rawPrefix + "2");
// Remove the parsed value (note the original string 'raw2' was "parsed" to 'parsed2')
Assert.True(headers.RemoveParsedValue(knownHeader, parsedPrefix + "2"));
Assert.Equal(2, headers.Parser.TryParseValueCallCount);
// Note that when the last value of a header gets removed, the whole header gets removed.
Assert.Equal(1, headers.Count());
Assert.Equal(1, headers.First().Value.Count());
Assert.Equal(parsedPrefix + "1", headers.First().Value.ElementAt(0));
Assert.Equal(2, headers.Parser.TryParseValueCallCount);
}
public void AddHeaders_SourceAndDestinationStoreHaveMultipleHeaders_OnlyHeadersNotInDestinationAreCopiedFromSource()
{
Dictionary<string, HttpHeaderParser> parserStore = new Dictionary<string, HttpHeaderParser>();
parserStore.Add("known1", new MockHeaderParser());
parserStore.Add("known2", new MockHeaderParser());
parserStore.Add("known3", new MockHeaderParser());
parserStore.Add("known4", new CustomTypeHeaderParser());
// Add header values to the source store.
MockHeaders source = new MockHeaders(parserStore);
source.Add("custom1", "source10");
source.Add("custom1", "source11");
source.TryAddWithoutValidation("custom2", "source2");
source.Add("known1", rawPrefix + "3");
source.TryAddWithoutValidation("known1", rawPrefix + "4");
source.TryAddWithoutValidation("known2", rawPrefix + "5");
source.TryAddWithoutValidation("known2", invalidHeaderValue);
source.TryAddWithoutValidation("known2", rawPrefix + "7");
// this header value gets removed when it gets parsed.
source.TryAddWithoutValidation("known3", (string)null);
source.Add("known3", string.Empty);
DateTimeOffset known4Value1 = new DateTimeOffset(2010, 6, 15, 18, 31, 34, TimeSpan.Zero);
DateTimeOffset known4Value2 = new DateTimeOffset(2010, 4, 8, 11, 21, 04, TimeSpan.Zero);
source.AddParsedValue("known4", known4Value1);
source.AddParsedValue("known4", known4Value2);
source.Add("custom5", "source5");
source.TryAddWithoutValidation("custom6", (string)null);
// This header value gets added even though it doesn't have values. But since this is a custom header we
// assume it supports empty values.
source.TryAddWithoutValidation("custom7", (string)null);
source.Add("custom7", string.Empty);
// Add header values to the destination store.
MockHeaders destination = new MockHeaders(parserStore);
destination.Add("custom2", "destination1");
destination.Add("known1", rawPrefix + "9");
// Now add all headers that are in source but not destination to destination.
destination.AddHeaders(source);
Assert.Equal(8, destination.Count());
Assert.Equal(2, destination.GetValues("custom1").Count());
Assert.Equal("source10", destination.GetValues("custom1").ElementAt(0));
Assert.Equal("source11", destination.GetValues("custom1").ElementAt(1));
// This value was set in destination. The header in source was ignored.
Assert.Equal(1, destination.GetValues("custom2").Count());
Assert.Equal("destination1", destination.GetValues("custom2").First());
// This value was set in destination. The header in source was ignored.
Assert.Equal(1, destination.GetValues("known1").Count());
Assert.Equal(parsedPrefix + "9", destination.GetValues("known1").First());
// The header in source gets first parsed and then copied to destination. Note that here we have one
// invalid value.
Assert.Equal(3, destination.GetValues("known2").Count());
Assert.Equal(parsedPrefix + "5", destination.GetValues("known2").ElementAt(0));
Assert.Equal(parsedPrefix + "7", destination.GetValues("known2").ElementAt(1));
Assert.Equal(invalidHeaderValue, destination.GetValues("known2").ElementAt(2));
// Header 'known3' should not be copied, since it doesn't contain any values.
Assert.False(destination.Contains("known3"), "'known3' header value count.");
Assert.Equal(2, destination.GetValues("known4").Count());
Assert.Equal(known4Value1.ToString(), destination.GetValues("known4").ElementAt(0));
Assert.Equal(known4Value2.ToString(), destination.GetValues("known4").ElementAt(1));
Assert.Equal("source5", destination.GetValues("custom5").First());
Assert.Equal(string.Empty, destination.GetValues("custom6").First());
// Unlike 'known3', 'custom7' was added even though it only had empty values. The reason is that 'custom7'
// is a custom header so we just add whatever value we get passed in.
Assert.Equal(2, destination.GetValues("custom7").Count());
Assert.Equal("", destination.GetValues("custom7").ElementAt(0));
Assert.Equal("", destination.GetValues("custom7").ElementAt(1));
}