opentelemetry-dotnet/test/OpenTelemetry.Tests/Logs/LogRecordTest.cs

921 lines
36 KiB
C#

// <copyright file="LogRecordTest.cs" company="OpenTelemetry Authors">
// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// </copyright>
#if !NETFRAMEWORK
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Linq;
using Microsoft.Extensions.Logging;
using OpenTelemetry.Exporter;
using OpenTelemetry.Logs;
using OpenTelemetry.Tests;
using OpenTelemetry.Trace;
using Xunit;
namespace OpenTelemetry.Logs.Tests
{
public sealed class LogRecordTest
{
private enum Field
{
FormattedMessage,
State,
StateValues,
}
[Fact]
public void CheckCategoryNameForLog()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
logger.LogInformation("Log");
var categoryName = exportedItems[0].CategoryName;
Assert.Equal(typeof(LogRecordTest).FullName, categoryName);
}
[Theory]
[InlineData(LogLevel.Trace)]
[InlineData(LogLevel.Debug)]
[InlineData(LogLevel.Information)]
[InlineData(LogLevel.Warning)]
[InlineData(LogLevel.Error)]
[InlineData(LogLevel.Critical)]
public void CheckLogLevel(LogLevel logLevel)
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
const string message = "Log {logLevel}";
logger.Log(logLevel, message, logLevel);
var logLevelRecorded = exportedItems[0].LogLevel;
Assert.Equal(logLevel, logLevelRecorded);
}
[Fact]
public void CheckStateForUnstructuredLog()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
const string message = "Hello, World!";
logger.LogInformation(message);
var state = exportedItems[0].State as IReadOnlyList<KeyValuePair<string, object>>;
// state only has {OriginalFormat}
Assert.Equal(1, state.Count);
Assert.Equal(message, state.ToString());
}
[Fact]
[SuppressMessage("CA2254", "CA2254", Justification = "While you shouldn't use interpolation in a log message, this test verifies things work with it anyway.")]
public void CheckStateForUnstructuredLogWithStringInterpolation()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
var message = $"Hello from potato {0.99}.";
logger.LogInformation(message);
var state = exportedItems[0].State as IReadOnlyList<KeyValuePair<string, object>>;
// state only has {OriginalFormat}
Assert.Equal(1, state.Count);
Assert.Equal(message, state.ToString());
}
[Fact]
public void CheckStateForStructuredLogWithTemplate()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
const string message = "Hello from {name} {price}.";
logger.LogInformation(message, "tomato", 2.99);
var state = exportedItems[0].State as IReadOnlyList<KeyValuePair<string, object>>;
// state has name, price and {OriginalFormat}
Assert.Equal(3, state.Count);
// Check if state has name
Assert.Contains(state, item => item.Key == "name");
Assert.Equal("tomato", state.First(item => item.Key == "name").Value);
// Check if state has price
Assert.Contains(state, item => item.Key == "price");
Assert.Equal(2.99, state.First(item => item.Key == "price").Value);
// Check if state has OriginalFormat
Assert.Contains(state, item => item.Key == "{OriginalFormat}");
Assert.Equal(message, state.First(item => item.Key == "{OriginalFormat}").Value);
Assert.Equal($"Hello from tomato 2.99.", state.ToString());
}
[Fact]
public void CheckStateForStructuredLogWithStrongType()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
var food = new Food { Name = "artichoke", Price = 3.99 };
logger.LogInformation("{food}", food);
var state = exportedItems[0].State as IReadOnlyList<KeyValuePair<string, object>>;
// state has food and {OriginalFormat}
Assert.Equal(2, state.Count);
// Check if state has food
Assert.Contains(state, item => item.Key == "food");
var foodParameter = (Food)state.First(item => item.Key == "food").Value;
Assert.Equal(food.Name, foodParameter.Name);
Assert.Equal(food.Price, foodParameter.Price);
// Check if state has OriginalFormat
Assert.Contains(state, item => item.Key == "{OriginalFormat}");
Assert.Equal("{food}", state.First(item => item.Key == "{OriginalFormat}").Value);
Assert.Equal(food.ToString(), state.ToString());
}
[Fact]
public void CheckStateForStructuredLogWithAnonymousType()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
var anonymousType = new { Name = "pumpkin", Price = 5.99 };
logger.LogInformation("{food}", anonymousType);
var state = exportedItems[0].State as IReadOnlyList<KeyValuePair<string, object>>;
// state has food and {OriginalFormat}
Assert.Equal(2, state.Count);
// Check if state has food
Assert.Contains(state, item => item.Key == "food");
var foodParameter = state.First(item => item.Key == "food").Value as dynamic;
Assert.Equal(anonymousType.Name, foodParameter.Name);
Assert.Equal(anonymousType.Price, foodParameter.Price);
// Check if state has OriginalFormat
Assert.Contains(state, item => item.Key == "{OriginalFormat}");
Assert.Equal("{food}", state.First(item => item.Key == "{OriginalFormat}").Value);
Assert.Equal(anonymousType.ToString(), state.ToString());
}
[Fact]
public void CheckStateForStructuredLogWithGeneralType()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
var food = new Dictionary<string, object>
{
["Name"] = "truffle",
["Price"] = 299.99,
};
logger.LogInformation("{food}", food);
var state = exportedItems[0].State as IReadOnlyList<KeyValuePair<string, object>>;
// state only has food and {OriginalFormat}
Assert.Equal(2, state.Count);
// Check if state has food
Assert.Contains(state, item => item.Key == "food");
var foodParameter = state.First(item => item.Key == "food").Value as Dictionary<string, object>;
Assert.True(food.Count == foodParameter.Count && !food.Except(foodParameter).Any());
// Check if state has OriginalFormat
Assert.Contains(state, item => item.Key == "{OriginalFormat}");
Assert.Equal("{food}", state.First(item => item.Key == "{OriginalFormat}").Value);
var prevCulture = CultureInfo.CurrentCulture;
CultureInfo.CurrentCulture = CultureInfo.InvariantCulture;
try
{
Assert.Equal("[Name, truffle], [Price, 299.99]", state.ToString());
}
finally
{
CultureInfo.CurrentCulture = prevCulture;
}
}
[Fact]
public void CheckStateForExceptionLogged()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
var exceptionMessage = "Exception Message";
var exception = new Exception(exceptionMessage);
const string message = "Exception Occurred";
logger.LogInformation(exception, message);
var state = exportedItems[0].State;
var itemCount = state.GetType().GetProperty("Count").GetValue(state);
// state only has {OriginalFormat}
Assert.Equal(1, itemCount);
var loggedException = exportedItems[0].Exception;
Assert.NotNull(loggedException);
Assert.Equal(exceptionMessage, loggedException.Message);
Assert.Equal(message, state.ToString());
}
[Fact]
public void CheckStateCanBeSet()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
logger.LogInformation("This does not matter.");
var logRecord = exportedItems[0];
logRecord.State = "newState";
var expectedState = "newState";
Assert.Equal(expectedState, logRecord.State);
}
[Fact]
public void CheckStateValuesCanBeSet()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.ParseStateValues = true);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
logger.Log(
LogLevel.Information,
0,
new List<KeyValuePair<string, object>> { new KeyValuePair<string, object>("Key1", "Value1") },
null,
(s, e) => "OpenTelemetry!");
var logRecord = exportedItems[0];
var expectedStateValues = new List<KeyValuePair<string, object>> { new KeyValuePair<string, object>("Key2", "Value2") };
logRecord.StateValues = expectedStateValues;
Assert.Equal(expectedStateValues, logRecord.StateValues);
}
[Fact]
public void CheckFormattedMessageCanBeSet()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.IncludeFormattedMessage = true);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
logger.LogInformation("OpenTelemetry {Greeting} {Subject}!", "Hello", "World");
var logRecord = exportedItems[0];
var expectedFormattedMessage = "OpenTelemetry Good Night!";
logRecord.FormattedMessage = expectedFormattedMessage;
Assert.Equal(expectedFormattedMessage, logRecord.FormattedMessage);
}
[Fact]
public void CheckStateCanBeSetByProcessor()
{
var exportedItems = new List<LogRecord>();
var exporter = new InMemoryExporter<LogRecord>(exportedItems);
using var loggerFactory = LoggerFactory.Create(builder =>
{
builder.AddOpenTelemetry(options =>
{
options.AddProcessor(new RedactionProcessor(Field.State));
options.AddInMemoryExporter(exportedItems);
});
});
var logger = loggerFactory.CreateLogger<LogRecordTest>();
logger.LogInformation($"This does not matter.");
var state = exportedItems[0].State as IReadOnlyList<KeyValuePair<string, object>>;
Assert.Equal("newStateKey", state[0].Key.ToString());
Assert.Equal("newStateValue", state[0].Value.ToString());
}
[Fact]
public void CheckStateValuesCanBeSetByProcessor()
{
var exportedItems = new List<LogRecord>();
var exporter = new InMemoryExporter<LogRecord>(exportedItems);
using var loggerFactory = LoggerFactory.Create(builder =>
{
builder.AddOpenTelemetry(options =>
{
options.AddProcessor(new RedactionProcessor(Field.StateValues));
options.AddInMemoryExporter(exportedItems);
options.ParseStateValues = true;
});
});
var logger = loggerFactory.CreateLogger<LogRecordTest>();
logger.LogInformation("This does not matter.");
var stateValue = exportedItems[0];
Assert.Equal(new KeyValuePair<string, object>("newStateValueKey", "newStateValueValue"), stateValue.StateValues[0]);
}
[Fact]
public void CheckFormattedMessageCanBeSetByProcessor()
{
var exportedItems = new List<LogRecord>();
var exporter = new InMemoryExporter<LogRecord>(exportedItems);
using var loggerFactory = LoggerFactory.Create(builder =>
{
builder.AddOpenTelemetry(options =>
{
options.AddProcessor(new RedactionProcessor(Field.FormattedMessage));
options.AddInMemoryExporter(exportedItems);
options.IncludeFormattedMessage = true;
});
});
var logger = loggerFactory.CreateLogger<LogRecordTest>();
logger.LogInformation("OpenTelemetry {Greeting} {Subject}!", "Hello", "World");
var item = exportedItems[0];
Assert.Equal("OpenTelemetry Good Night!", item.FormattedMessage);
}
[Fact]
public void CheckTraceIdForLogWithinDroppedActivity()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
logger.LogInformation("Log within a dropped activity");
var logRecord = exportedItems[0];
Assert.Null(Activity.Current);
Assert.Equal(default, logRecord.TraceId);
Assert.Equal(default, logRecord.SpanId);
Assert.Equal(default, logRecord.TraceFlags);
}
[Fact]
public void CheckTraceIdForLogWithinActivityMarkedAsRecordOnly()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
var sampler = new RecordOnlySampler();
var exportedActivityList = new List<Activity>();
var activitySourceName = "LogRecordTest";
var activitySource = new ActivitySource(activitySourceName);
using var tracerProvider = Sdk.CreateTracerProviderBuilder()
.AddSource(activitySourceName)
.SetSampler(sampler)
.AddInMemoryExporter(exportedActivityList)
.Build();
using var activity = activitySource.StartActivity("Activity");
logger.LogInformation("Log within activity marked as RecordOnly");
var logRecord = exportedItems[0];
var currentActivity = Activity.Current;
Assert.NotNull(Activity.Current);
Assert.Equal(currentActivity.TraceId, logRecord.TraceId);
Assert.Equal(currentActivity.SpanId, logRecord.SpanId);
Assert.Equal(currentActivity.ActivityTraceFlags, logRecord.TraceFlags);
}
[Fact]
public void CheckTraceIdForLogWithinActivityMarkedAsRecordAndSample()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: null);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
var sampler = new AlwaysOnSampler();
var exportedActivityList = new List<Activity>();
var activitySourceName = "LogRecordTest";
var activitySource = new ActivitySource(activitySourceName);
using var tracerProvider = Sdk.CreateTracerProviderBuilder()
.AddSource(activitySourceName)
.SetSampler(sampler)
.AddInMemoryExporter(exportedActivityList)
.Build();
using var activity = activitySource.StartActivity("Activity");
logger.LogInformation("Log within activity marked as RecordAndSample");
var logRecord = exportedItems[0];
var currentActivity = Activity.Current;
Assert.NotNull(Activity.Current);
Assert.Equal(currentActivity.TraceId, logRecord.TraceId);
Assert.Equal(currentActivity.SpanId, logRecord.SpanId);
Assert.Equal(currentActivity.ActivityTraceFlags, logRecord.TraceFlags);
}
[Fact]
public void VerifyIncludeFormattedMessage_False()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.IncludeFormattedMessage = false);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
logger.LogInformation("OpenTelemetry!");
var logRecord = exportedItems[0];
Assert.Null(logRecord.FormattedMessage);
}
[Fact]
public void VerifyIncludeFormattedMessage_True()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.IncludeFormattedMessage = true);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
logger.LogInformation("OpenTelemetry!");
var logRecord = exportedItems[0];
Assert.Equal("OpenTelemetry!", logRecord.FormattedMessage);
logger.LogInformation("OpenTelemetry {Greeting} {Subject}!", "Hello", "World");
logRecord = exportedItems[1];
Assert.Equal("OpenTelemetry Hello World!", logRecord.FormattedMessage);
}
[Fact]
public void IncludeFormattedMessageTestWhenFormatterNull()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.IncludeFormattedMessage = true);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
logger.Log(LogLevel.Information, default, "Hello World!", null, null);
var logRecord = exportedItems[0];
Assert.Null(logRecord.FormattedMessage);
// Pass null as formatter function
logger.Log(LogLevel.Information, default, "Hello World!", null, null);
logRecord = exportedItems[1];
Assert.Null(logRecord.FormattedMessage);
var expectedFormattedMessage = "formatted message";
logger.Log(LogLevel.Information, default, "Hello World!", null, (state, ex) => expectedFormattedMessage);
logRecord = exportedItems[2];
Assert.Equal(expectedFormattedMessage, logRecord.FormattedMessage);
}
[Fact]
public void VerifyIncludeScopes_False()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.IncludeScopes = false);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
using var scope = logger.BeginScope("string_scope");
logger.LogInformation("OpenTelemetry!");
var logRecord = exportedItems[0];
List<object> scopes = new List<object>();
logRecord.ForEachScope<object>((scope, state) => scopes.Add(scope.Scope), null);
Assert.Empty(scopes);
}
[Fact]
public void VerifyIncludeScopes_True()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.IncludeScopes = true);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
using var scope = logger.BeginScope("string_scope");
logger.LogInformation("OpenTelemetry!");
var logRecord = exportedItems[0];
List<object> scopes = new List<object>();
logger.LogInformation("OpenTelemetry!");
logRecord = exportedItems[1];
int reachedDepth = -1;
logRecord.ForEachScope<object>(
(scope, state) =>
{
reachedDepth++;
scopes.Add(scope.Scope);
foreach (KeyValuePair<string, object> item in scope)
{
Assert.Equal(string.Empty, item.Key);
Assert.Equal("string_scope", item.Value);
}
},
null);
Assert.Single(scopes);
Assert.Equal(0, reachedDepth);
Assert.Equal("string_scope", scopes[0]);
scopes.Clear();
List<KeyValuePair<string, object>> expectedScope2 = new List<KeyValuePair<string, object>>
{
new KeyValuePair<string, object>("item1", "value1"),
new KeyValuePair<string, object>("item2", "value2"),
};
using var scope2 = logger.BeginScope(expectedScope2);
logger.LogInformation("OpenTelemetry!");
logRecord = exportedItems[2];
reachedDepth = -1;
logRecord.ForEachScope<object>(
(scope, state) =>
{
scopes.Add(scope.Scope);
if (reachedDepth++ == 1)
{
foreach (KeyValuePair<string, object> item in scope)
{
Assert.Contains(item, expectedScope2);
}
}
},
null);
Assert.Equal(2, scopes.Count);
Assert.Equal(1, reachedDepth);
Assert.Equal("string_scope", scopes[0]);
Assert.Same(expectedScope2, scopes[1]);
scopes.Clear();
KeyValuePair<string, object>[] expectedScope3 = new KeyValuePair<string, object>[]
{
new KeyValuePair<string, object>("item3", "value3"),
new KeyValuePair<string, object>("item4", "value4"),
};
using var scope3 = logger.BeginScope(expectedScope3);
logger.LogInformation("OpenTelemetry!");
logRecord = exportedItems[3];
reachedDepth = -1;
logRecord.ForEachScope<object>(
(scope, state) =>
{
scopes.Add(scope.Scope);
if (reachedDepth++ == 2)
{
foreach (KeyValuePair<string, object> item in scope)
{
Assert.Contains(item, expectedScope3);
}
}
},
null);
Assert.Equal(3, scopes.Count);
Assert.Equal(2, reachedDepth);
Assert.Equal("string_scope", scopes[0]);
Assert.Same(expectedScope2, scopes[1]);
Assert.Same(expectedScope3, scopes[2]);
}
[Fact]
public void VerifyParseStateValues_False_UsingStandardExtensions()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.ParseStateValues = false);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
// Tests state parsing with standard extensions.
logger.LogInformation("{Product} {Year}!", "OpenTelemetry", 2021);
var logRecord = exportedItems[0];
Assert.NotNull(logRecord.State);
Assert.Null(logRecord.StateValues);
}
[Fact]
public void VerifyParseStateValues_True_UsingStandardExtensions()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.ParseStateValues = true);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
// Tests state parsing with standard extensions.
logger.LogInformation("{Product} {Year}!", "OpenTelemetry", 2021);
var logRecord = exportedItems[0];
Assert.Null(logRecord.State);
Assert.NotNull(logRecord.StateValues);
Assert.Equal(3, logRecord.StateValues.Count);
Assert.Equal(new KeyValuePair<string, object>("Product", "OpenTelemetry"), logRecord.StateValues[0]);
Assert.Equal(new KeyValuePair<string, object>("Year", 2021), logRecord.StateValues[1]);
Assert.Equal(new KeyValuePair<string, object>("{OriginalFormat}", "{Product} {Year}!"), logRecord.StateValues[2]);
var complex = new { Property = "Value" };
logger.LogInformation("{Product} {Year} {Complex}!", "OpenTelemetry", 2021, complex);
logRecord = exportedItems[1];
Assert.Null(logRecord.State);
Assert.NotNull(logRecord.StateValues);
Assert.Equal(4, logRecord.StateValues.Count);
Assert.Equal(new KeyValuePair<string, object>("Product", "OpenTelemetry"), logRecord.StateValues[0]);
Assert.Equal(new KeyValuePair<string, object>("Year", 2021), logRecord.StateValues[1]);
Assert.Equal(new KeyValuePair<string, object>("{OriginalFormat}", "{Product} {Year} {Complex}!"), logRecord.StateValues[3]);
KeyValuePair<string, object> actualComplex = logRecord.StateValues[2];
Assert.Equal("Complex", actualComplex.Key);
Assert.Same(complex, actualComplex.Value);
}
[Fact]
public void ParseStateValuesUsingStructTest()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.ParseStateValues = true);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
// Tests struct IReadOnlyList<KeyValuePair<string, object>> parse path.
logger.Log(
LogLevel.Information,
0,
new StructState(new KeyValuePair<string, object>("Key1", "Value1")),
null,
(s, e) => "OpenTelemetry!");
var logRecord = exportedItems[0];
Assert.Null(logRecord.State);
Assert.NotNull(logRecord.StateValues);
Assert.Equal(1, logRecord.StateValues.Count);
Assert.Equal(new KeyValuePair<string, object>("Key1", "Value1"), logRecord.StateValues[0]);
}
[Fact]
public void ParseStateValuesUsingListTest()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.ParseStateValues = true);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
// Tests ref IReadOnlyList<KeyValuePair<string, object>> parse path.
logger.Log(
LogLevel.Information,
0,
new List<KeyValuePair<string, object>> { new KeyValuePair<string, object>("Key1", "Value1") },
null,
(s, e) => "OpenTelemetry!");
var logRecord = exportedItems[0];
Assert.Null(logRecord.State);
Assert.NotNull(logRecord.StateValues);
Assert.Equal(1, logRecord.StateValues.Count);
Assert.Equal(new KeyValuePair<string, object>("Key1", "Value1"), logRecord.StateValues[0]);
}
[Fact]
public void ParseStateValuesUsingIEnumerableTest()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.ParseStateValues = true);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
// Tests IEnumerable<KeyValuePair<string, object>> parse path.
logger.Log(
LogLevel.Information,
0,
new ListState(new KeyValuePair<string, object>("Key1", "Value1")),
null,
(s, e) => "OpenTelemetry!");
var logRecord = exportedItems[0];
Assert.Null(logRecord.State);
Assert.NotNull(logRecord.StateValues);
Assert.Equal(1, logRecord.StateValues.Count);
Assert.Equal(new KeyValuePair<string, object>("Key1", "Value1"), logRecord.StateValues[0]);
}
[Fact]
public void ParseStateValuesUsingCustomTest()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.ParseStateValues = true);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
// Tests unknown state parse path.
CustomState state = new CustomState
{
Property = "Value",
};
logger.Log(
LogLevel.Information,
0,
state,
null,
(s, e) => "OpenTelemetry!");
var logRecord = exportedItems[0];
Assert.Null(logRecord.State);
Assert.NotNull(logRecord.StateValues);
Assert.Equal(1, logRecord.StateValues.Count);
KeyValuePair<string, object> actualState = logRecord.StateValues[0];
Assert.Equal(string.Empty, actualState.Key);
Assert.Same(state, actualState.Value);
}
[Fact]
public void DisposingStateTest()
{
using var loggerFactory = InitializeLoggerFactory(out List<LogRecord> exportedItems, configure: options => options.ParseStateValues = true);
var logger = loggerFactory.CreateLogger<LogRecordTest>();
DisposingState state = new DisposingState("Hello world");
logger.Log(
LogLevel.Information,
0,
state,
null,
(s, e) => "OpenTelemetry!");
var logRecord = exportedItems[0];
state.Dispose();
Assert.Null(logRecord.State);
Assert.NotNull(logRecord.StateValues);
Assert.Equal(1, logRecord.StateValues.Count);
KeyValuePair<string, object> actualState = logRecord.StateValues[0];
Assert.Same("Value", actualState.Key);
Assert.Same("Hello world", actualState.Value);
}
private static ILoggerFactory InitializeLoggerFactory(out List<LogRecord> exportedItems, Action<OpenTelemetryLoggerOptions> configure = null)
{
var items = exportedItems = new List<LogRecord>();
return LoggerFactory.Create(builder =>
{
builder.AddOpenTelemetry(options =>
{
configure?.Invoke(options);
options.AddInMemoryExporter(items);
});
builder.AddFilter(typeof(LogRecordTest).FullName, LogLevel.Trace);
});
}
internal struct Food
{
public string Name { get; set; }
public double Price { get; set; }
}
private struct StructState : IReadOnlyList<KeyValuePair<string, object>>
{
private readonly List<KeyValuePair<string, object>> list;
public StructState(params KeyValuePair<string, object>[] items)
{
this.list = new List<KeyValuePair<string, object>>(items);
}
public int Count => this.list.Count;
public KeyValuePair<string, object> this[int index] => this.list[index];
public IEnumerator<KeyValuePair<string, object>> GetEnumerator()
{
return this.list.GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
return this.list.GetEnumerator();
}
}
internal sealed class DisposingState : IReadOnlyList<KeyValuePair<string, object>>, IDisposable
{
private string value;
private bool disposed;
public DisposingState(string value)
{
this.Value = value;
}
public int Count => 1;
public string Value
{
get
{
if (this.disposed)
{
throw new ObjectDisposedException(nameof(DisposingState));
}
return this.value;
}
private set => this.value = value;
}
public KeyValuePair<string, object> this[int index] => index switch
{
0 => new KeyValuePair<string, object>(nameof(this.Value), this.Value),
_ => throw new IndexOutOfRangeException(nameof(index)),
};
public void Dispose()
{
this.disposed = true;
}
public IEnumerator<KeyValuePair<string, object>> GetEnumerator()
{
for (var i = 0; i < this.Count; i++)
{
yield return this[i];
}
}
IEnumerator IEnumerable.GetEnumerator() => this.GetEnumerator();
}
private class RedactionProcessor : BaseProcessor<LogRecord>
{
private readonly Field fieldToUpdate;
public RedactionProcessor(Field fieldToUpdate)
{
this.fieldToUpdate = fieldToUpdate;
}
public override void OnEnd(LogRecord logRecord)
{
if (this.fieldToUpdate == Field.State)
{
logRecord.State = new List<KeyValuePair<string, object>> { new KeyValuePair<string, object>("newStateKey", "newStateValue") };
}
else if (this.fieldToUpdate == Field.StateValues)
{
logRecord.StateValues = new List<KeyValuePair<string, object>> { new KeyValuePair<string, object>("newStateValueKey", "newStateValueValue") };
}
else
{
logRecord.FormattedMessage = "OpenTelemetry Good Night!";
}
}
}
private class ListState : IEnumerable<KeyValuePair<string, object>>
{
private readonly List<KeyValuePair<string, object>> list;
public ListState(params KeyValuePair<string, object>[] items)
{
this.list = new List<KeyValuePair<string, object>>(items);
}
public IEnumerator<KeyValuePair<string, object>> GetEnumerator()
{
return this.list.GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
return this.list.GetEnumerator();
}
}
private class CustomState
{
public string Property { get; set; }
}
}
}
#endif