Add Puppeteer.executablePath tests (#83)

Author: Meir017

lib/PuppeteerSharp.Tests/Puppeteer/ExecutablePathTests.cs

@@ -0,0 +1,16 @@
+using System.IO;
+using Xunit;
+
+namespace PuppeteerSharp.Tests.Puppeteer
+{
+    [Collection("PuppeteerLoaderFixture collection")]
+    public class ExecutablePathTests
+    {
+        [Fact]
+        public void ShouldWork()
+        {
+            var executablePath = PuppeteerSharp.Puppeteer.GetExecutablePath();
+            Assert.True(File.Exists(executablePath));
+        }
+    }
+}

lib/PuppeteerSharp.Tests/TestConstants.cs

@@ -7,7 +7,7 @@ public static class TestConstants
         public const int HttpsPort = 8908;
         public const string ServerUrl = "http://localhost:8907";
         public const string HttpsPrefix = "https://localhost:8908";
-        public const int ChromiumRevision = 526987;
+        public const int ChromiumRevision = Downloader.DefaultRevision;
         public static readonly string EmptyPage = $"{ServerUrl}/empty.html";
 
         public static LaunchOptions DefaultBrowserOptions() => new LaunchOptions

lib/PuppeteerSharp/Downloader.cs

@@ -21,6 +21,8 @@ public class Downloader
         };
         private string _downloadHost;
 
+        public const int DefaultRevision = 526987;
+
         public Downloader(string downloadsFolder)
         {
             _downloadsFolder = downloadsFolder;

lib/PuppeteerSharp/Launcher.cs

@@ -167,7 +167,7 @@ public async Task<Browser> LaunchAsync(LaunchOptions options, int chromiumRevisi
             }
 
         }
-
+        
         public async Task TryDeleteUserDataDir(int times = 10, TimeSpan? delay = null)
         {
             if (!IsChromeClosed)
@@ -207,6 +207,13 @@ public async Task TryDeleteUserDataDir(int times = 10, TimeSpan? delay = null)
             }
         }
 
+        public static string GetExecutablePath()
+        {
+            var downloader = Downloader.CreateDefault();
+            var revisionInfo = downloader.RevisionInfo(Downloader.CurrentPlatform, Downloader.DefaultRevision);
+            return revisionInfo.ExecutablePath;
+        }
+
         public static string GetTemporaryDirectory()
         {
             string tempDirectory = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
@@ -217,7 +224,7 @@ public static string GetTemporaryDirectory()
         #endregion
 
         #region Private methods
-
+        
         private Task<string> WaitForEndpoint(Process chromeProcess, int timeout, bool dumpio)
         {
             var taskWrapper = new TaskCompletionSource<string>();

lib/PuppeteerSharp/Puppeteer.cs

@@ -1,13 +1,13 @@
-using System;
-using System.Collections.Generic;
-using System.Threading.Tasks;
+using System.Threading.Tasks;
 
 namespace PuppeteerSharp
 {
     public class Puppeteer
     {
         public static string[] DefaultArgs => Launcher.DefaultArgs;
 
+        public static string GetExecutablePath() => Launcher.GetExecutablePath();
+
         public static async Task<Browser> LaunchAsync(LaunchOptions options, int chromiumRevision)
         {
             return await new Launcher().LaunchAsync(options, chromiumRevision);