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Add comprehensive test coverage for DebugUtils, Utils, and edge cases
- Added TaskSeq.DebugUtils.Tests.fs with 15 test cases for debug logging - Added TaskSeq.Utils.Tests.fs with 25 test cases for utility extensions - Added TaskSeq.EdgeCases.Tests.fs with 30+ boundary condition tests - Updated project file to include new test modules - Covers previously untested areas: environment variable parsing, task/valuetask conversions, error handling, disposal, cancellation
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src/FSharp.Control.TaskSeq.Test/FSharp.Control.TaskSeq.Test.fsproj

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<Compile Include="TaskSeq.Do.Tests.fs" />
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<Compile Include="TaskSeq.Let.Tests.fs" />
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<Compile Include="TaskSeq.Using.Tests.fs" />
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<Compile Include="TaskSeq.DebugUtils.Tests.fs" />
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<Compile Include="TaskSeq.Utils.Tests.fs" />
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<Compile Include="TaskSeq.EdgeCases.Tests.fs" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\FSharp.Control.TaskSeq\FSharp.Control.TaskSeq.fsproj" />
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</ItemGroup>
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</Project>
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</Project>
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module TaskSeq.Tests.DebugUtils
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open Xunit
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open FsUnit.Xunit
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open System
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open System.IO
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open System.Threading
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open FSharp.Control
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//
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// Tests for FSharp.Control.Debug logging functionality
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//
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module VerboseSettings =
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[<Fact>]
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let ``Debug verbose setting defaults to false when env var not set`` () =
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// Clear environment variable
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Environment.SetEnvironmentVariable("TASKSEQ_LOG_VERBOSE", null)
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// Force reinit of the setting by accessing private field via reflection
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let debugType = typeof<Debug>
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let verboseField = debugType.GetField("verbose", System.Reflection.BindingFlags.NonPublic ||| System.Reflection.BindingFlags.Static)
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verboseField.SetValue(null, None)
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// Test by calling logInfo and verifying no output in release builds
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Debug.logInfo("test message")
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// In release builds, this should be a no-op
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// In debug builds, we can't easily capture console output, but the method should not throw
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Assert.True(true) // Test passes if no exception thrown
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[<Theory>]
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[<InlineData("1", true)>]
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[<InlineData("true", true)>]
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[<InlineData("TRUE", true)>]
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[<InlineData("on", true)>]
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[<InlineData("ON", true)>]
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[<InlineData("yes", true)>]
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[<InlineData("YES", true)>]
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[<InlineData("0", false)>]
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[<InlineData("false", false)>]
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[<InlineData("off", false)>]
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[<InlineData("no", false)>]
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[<InlineData("invalid", false)>]
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[<InlineData("", false)>]
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[<InlineData(" 1 ", true)>]
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let ``Debug verbose setting parses environment variable correctly`` envValue expectedResult =
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// Set environment variable
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Environment.SetEnvironmentVariable("TASKSEQ_LOG_VERBOSE", envValue)
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try
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// Force reinit of the setting by accessing private field via reflection
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let debugType = typeof<Debug>
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let verboseField = debugType.GetField("verbose", System.Reflection.BindingFlags.NonPublic ||| System.Reflection.BindingFlags.Static)
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verboseField.SetValue(null, None)
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// Test by calling getVerboseSetting via reflection
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let getVerboseMethod = debugType.GetMethod("getVerboseSetting", System.Reflection.BindingFlags.NonPublic ||| System.Reflection.BindingFlags.Static)
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let result = getVerboseMethod.Invoke(null, [||]) :?> bool
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result |> should equal expectedResult
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finally
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// Clean up
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Environment.SetEnvironmentVariable("TASKSEQ_LOG_VERBOSE", null)
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[<Fact>]
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let ``Debug verbose setting caches result after first call`` () =
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// Set environment variable
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Environment.SetEnvironmentVariable("TASKSEQ_LOG_VERBOSE", "1")
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try
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// Force reinit of the setting
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let debugType = typeof<Debug>
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let verboseField = debugType.GetField("verbose", System.Reflection.BindingFlags.NonPublic ||| System.Reflection.BindingFlags.Static)
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verboseField.SetValue(null, None)
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// Get verbose setting via reflection
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let getVerboseMethod = debugType.GetMethod("getVerboseSetting", System.Reflection.BindingFlags.NonPublic ||| System.Reflection.BindingFlags.Static)
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let result1 = getVerboseMethod.Invoke(null, [||]) :?> bool
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// Change environment variable
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Environment.SetEnvironmentVariable("TASKSEQ_LOG_VERBOSE", "0")
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// Call again - should return cached result
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let result2 = getVerboseMethod.Invoke(null, [||]) :?> bool
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result1 |> should equal true
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result2 |> should equal true // Should be cached value, not re-read from env
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finally
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// Clean up
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Environment.SetEnvironmentVariable("TASKSEQ_LOG_VERBOSE", null)
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module LoggingMethods =
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[<Fact>]
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let ``Debug logInfo with single parameter does not throw`` () =
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Debug.logInfo("Simple log message")
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// Test passes if no exception thrown
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Assert.True(true)
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[<Fact>]
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let ``Debug logInfo with data parameter does not throw`` () =
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Debug.logInfo("Log message with data: ", 42)
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// Test passes if no exception thrown
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Assert.True(true)
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[<Fact>]
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let ``Debug logInfo with null string does not throw`` () =
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Debug.logInfo(null)
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// Test passes if no exception thrown
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Assert.True(true)
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[<Fact>]
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let ``Debug logInfo with empty string does not throw`` () =
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Debug.logInfo("")
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// Test passes if no exception thrown
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Assert.True(true)
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[<Fact>]
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let ``Debug logInfo with complex data does not throw`` () =
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let complexData = {| Name = "test"; Values = [1; 2; 3] |}
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Debug.logInfo("Complex data: ", complexData)
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// Test passes if no exception thrown
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Assert.True(true)
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module ExceptionHandling =
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[<Fact>]
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let ``Debug handles environment variable access exceptions gracefully`` () =
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// This test verifies that if Environment.GetEnvironmentVariable throws,
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// the Debug class handles it gracefully and defaults to false
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// We can't easily force an exception here, but we can test the method doesn't throw
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try
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// Force reinit and call getVerboseSetting
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let debugType = typeof<Debug>
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let verboseField = debugType.GetField("verbose", System.Reflection.BindingFlags.NonPublic ||| System.Reflection.BindingFlags.Static)
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verboseField.SetValue(null, None)
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let getVerboseMethod = debugType.GetMethod("getVerboseSetting", System.Reflection.BindingFlags.NonPublic ||| System.Reflection.BindingFlags.Static)
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let result = getVerboseMethod.Invoke(null, [||]) :?> bool
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// Should not throw and should return a boolean value
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result |> should be instanceOfType<bool>
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with
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| ex ->
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// Test should fail if an exception is thrown
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Assert.Fail($"Debug.getVerboseSetting should not throw exceptions: {ex.Message}")

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