internal void ExtractHeaderTags_EmptyHeadersReturnsEmptyTagsList(IHeadersCollection headers)
{
var tagsFromHeader = headers.ExtractHeaderTags(new Dictionary <string, string>(), TestPrefix);
Assert.NotNull(tagsFromHeader);
Assert.Empty(tagsFromHeader);
}
internal void ExtractHeaderTags_MatchesCaseInsensitive(IHeadersCollection headers)
{
// Initialize constants
const string customHeader1Name = "dd-custom-header1";
const string customHeader1Value = "match1";
const string customHeader1TagName = "custom-header1-tag";
const string customHeader2Name = "DD-CUSTOM-HEADER-MISMATCHING-CASE";
const string customHeader2Value = "match2";
const string customHeader2TagName = "custom-header2-tag";
string customHeader2LowercaseHeaderName = customHeader2Name.ToLowerInvariant();
// Add headers
headers.Add(customHeader1Name, customHeader1Value);
headers.Add(customHeader2Name, customHeader2Value);
// Initialize header-tag arguments and expectations
var headerTags = new Dictionary <string, string>();
headerTags.Add(customHeader1Name, customHeader1TagName);
headerTags.Add(customHeader2LowercaseHeaderName, customHeader2TagName);
var expectedResults = new Dictionary <string, string>();
expectedResults.Add(customHeader1TagName, customHeader1Value);
expectedResults.Add(customHeader2TagName, customHeader2Value);
// Test
var tagsFromHeader = headers.ExtractHeaderTags(headerTags, TestPrefix);
// Assert
Assert.NotNull(tagsFromHeader);
Assert.Equal(expectedResults, tagsFromHeader);
}
internal void ExtractHeaderTags_ForEmptyStringMappings_CreatesNormalizedTagWithPrefix(IHeadersCollection headers)
{
string invalidCharacterSequence = "*|&#$%&^`.";
string normalizedReplacementSequence = new string('_', invalidCharacterSequence.Length);
// Add headers
headers.Add("x-header-test-runner", "xunit");
headers.Add($"x-header-1DATADOG-{invalidCharacterSequence}", "true");
// Initialize header-tag arguments and expectations
var headerToTagMap = new Dictionary <string, string>
{
{ "x-header-test-runner", string.Empty },
{ $"x-header-1DATADOG-{invalidCharacterSequence}", string.Empty },
};
var expectedResults = new Dictionary <string, string>
{
{ TestPrefix + "." + "x-header-test-runner", "xunit" },
{ TestPrefix + "." + $"x-header-1datadog-{normalizedReplacementSequence}", "true" }
};
// Test
var tagsFromHeader = headers.ExtractHeaderTags(headerToTagMap, TestPrefix);
// Assert
Assert.NotNull(tagsFromHeader);
Assert.Equal(expectedResults, tagsFromHeader);
}
internal void ExtractHeaderTags_EmptyHeaderTags_AddsNoTags(IHeadersCollection headers)
{
// Add headers
headers.Add("x-header-test-runner", "xunit");
// Initialize header-tag arguments and expectations
var headerToTagMap = new Dictionary <string, string>();
var expectedResults = new Dictionary <string, string>();
// Test
var tagsFromHeader = headers.ExtractHeaderTags(headerToTagMap, TestPrefix);
// Assert
Assert.NotNull(tagsFromHeader);
Assert.Equal(expectedResults, tagsFromHeader);
}