Generate proper scenario name for camel/pascalcase test naming

cezarypiatek · Apr 2, 2022 · ae4c26a · ae4c26a
1 parent 5acad27
commit ae4c26a
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Showing 3 changed files with 44 additions and 5 deletions.
diff --git a/src/NScenario.Demo/UnitTest1.cs b/src/NScenario.Demo/UnitTest1.cs
@@ -28,6 +28,29 @@ await scenario.Step("This is the third step", () =>
             });
         }
 
+
+
+        [Test] 
+        public async Task shouldPresentBASICScenarioWithCamelCaseTitle()
+        {
+            var scenario = TestScenarioFactory.Default();
+
+            await scenario.Step("This is the first step", () =>
+            {
+                // Here comes the logic
+            });
+
+            await scenario.Step("This is the second step", () =>
+            {
+                // Here comes the logic
+            });
+
+            await scenario.Step("This is the third step", () =>
+            {
+                // Here comes the logic
+            });
+        }
+
         [TestCase(false)]
         [TestCase(true)]
         public async Task should_present_basic_scenario_with_explicit_title(bool someFlag)

diff --git a/src/NScenario/StepExecutors/OutputScenarioStepExecutor.cs b/src/NScenario/StepExecutors/OutputScenarioStepExecutor.cs
@@ -1,6 +1,8 @@
 using System;
 using System.Collections.Concurrent;
 using System.IO;
+using System.Linq;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using NScenario.OutputWriters;
 
@@ -47,9 +49,11 @@ private void TryWriteScenarioTitle(string scenario)
         {
             if (_startedScenarios.TryAdd(scenario, true))
             {
-                var scenarioTitle = scenario.Replace("_", " ");
-                _scenarioOutputWriter.WriteScenarioTitle(scenarioTitle);
+
+                _scenarioOutputWriter.WriteScenarioTitle(scenario);
             }
         }
+
+
     }
 }
diff --git a/src/NScenario/TestScenarioFactory.cs b/src/NScenario/TestScenarioFactory.cs
@@ -1,7 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using System.Runtime.CompilerServices;
+using System.Text.RegularExpressions;
 using NScenario.OutputWriters;
 using NScenario.StepExecutors;
 
@@ -13,21 +15,31 @@ public static class TestScenarioFactory
 
         public static ITestScenario Default(TextWriter outputWriter = null, string scenarioPrefix = null, string stepPrefix = null, [CallerMemberName] string testMethodName = "", string title = null)
         {
-            title ??= testMethodName;
+            title ??= GenerateScenarioTitle(testMethodName);
             EnsureTestScenarioTitleUniqueness(title);
             var selectedOutputWriter = outputWriter != null ? new StreamScenarioOutputWriter(outputWriter) : DefaultScenarioOutputWriter;
             var stepExecutor = BuildScenarioStepExecutor(selectedOutputWriter, scenarioPrefix, stepPrefix);
             return new TestScenario(stepExecutor, title);
         }
-
         public static ITestScenario Default(IScenarioOutputWriter outputWriter, string scenarioPrefix = null, string stepPrefix = null, [CallerMemberName] string testMethodName = "", string title = null)
         {
-            title ??= testMethodName;
+            title ??= GenerateScenarioTitle(testMethodName);
             var selectedOutputWriter = outputWriter;
             var stepExecutor = BuildScenarioStepExecutor(selectedOutputWriter, scenarioPrefix, stepPrefix);
             return new TestScenario(stepExecutor, title ?? testMethodName);
         }
 
+        private static readonly Regex InWordBreakPattern = new Regex("(?<!(^|[A-Z]))(?=[A-Z])|(?<!^)(?=[A-Z][a-z])", RegexOptions.Compiled);
+
+        private static readonly Regex WordSplitPattern = new Regex(@"[^a-zA-Z0-9]", RegexOptions.Compiled);
+
+        private static string GenerateScenarioTitle(string scenario)
+        {
+            var parts = WordSplitPattern.Split(scenario).Select(word => InWordBreakPattern.Split(word)).SelectMany(x => x).Where(x => !string.IsNullOrWhiteSpace(x));
+            var scenarioTitle = string.Join(" ", parts);
+            return scenarioTitle;
+        }
+
         private static readonly HashSet<string> ScenarioTitles = new HashSet<string>();
 
         private static void EnsureTestScenarioTitleUniqueness(string scenarioTitle)