Fix unit tests.

The GitVersionContextBuilder does not create an actual repository, causing exceptions.

Author: DanielRose

src/GitVersionCore.Tests/VersionCalculation/NextVersionCalculatorTests.cs

@@ -58,47 +58,61 @@ public void AppliesBranchPreReleaseTag()
         [Test]
         public void PreReleaseTagCanUseBranchName()
         {
-            var baseCalculator = new TestBaseVersionCalculator(false, new SemanticVersion(1), new MockCommit());
-            var semanticVersionBuildMetaData = new SemanticVersionBuildMetaData(2, "develop", "b1a34e", DateTimeOffset.Now);
-            var sut = new NextVersionCalculator(baseCalculator, new TestMetaDataCalculator(semanticVersionBuildMetaData));
-            var config = new Config();
-            config.Branches.Add("custom", new BranchConfig
+            var config = new Config
             {
-                Regex = "custom/",
-                Tag = "useBranchName"
-            });
-            var context = new GitVersionContextBuilder()
-                .WithConfig(config)
-                .WithDevelopBranch()
-                .AddBranch("custom/foo")
-                .Build();
+                NextVersion = "1.0.0",
+                Branches = new Dictionary<string, BranchConfig>
+                {
+                    {
+                        "custom", new BranchConfig
+                        {
+                            Regex = "custom/",
+                            Tag = "useBranchName"
+                        }
+                    }
+                }
+            };
 
-            var version = sut.FindVersion(context);
+            using (var fixture = new EmptyRepositoryFixture())
+            {
+                fixture.MakeACommit();
+                fixture.BranchTo("develop");
+                fixture.MakeACommit();
+                fixture.BranchTo("custom/foo");
+                fixture.MakeACommit();
 
-            version.ToString("f").ShouldBe("1.0.0-foo.1+2");
+                fixture.AssertFullSemver(config, "1.0.0-foo.1+2");
+            }
         }
 
         [Test]
         public void PreReleaseTagCanUseBranchNameVariable()
         {
-            var baseCalculator = new TestBaseVersionCalculator(false, new SemanticVersion(1), new MockCommit());
-            var semanticVersionBuildMetaData = new SemanticVersionBuildMetaData(2, "develop", "b1a34e", DateTimeOffset.Now);
-            var sut = new NextVersionCalculator(baseCalculator, new TestMetaDataCalculator(semanticVersionBuildMetaData));
-            var config = new Config();
-            config.Branches.Add("custom", new BranchConfig
+            var config = new Config
             {
-                Regex = "custom/",
-                Tag = "alpha.{BranchName}"
-            });
-            var context = new GitVersionContextBuilder()
-                .WithConfig(config)
-                .WithDevelopBranch()
-                .AddBranch("custom/foo")
-                .Build();
+                NextVersion = "1.0.0",
+                Branches = new Dictionary<string, BranchConfig>
+                {
+                    {
+                        "custom", new BranchConfig
+                        {
+                            Regex = "custom/",
+                            Tag = "alpha.{BranchName}"
+                        }
+                    }
+                }
+            };
 
-            var version = sut.FindVersion(context);
+            using (var fixture = new EmptyRepositoryFixture())
+            {
+                fixture.MakeACommit();
+                fixture.BranchTo("develop");
+                fixture.MakeACommit();
+                fixture.BranchTo("custom/foo");
+                fixture.MakeACommit();
 
-            version.ToString("f").ShouldBe("1.0.0-alpha.foo.1+2");
+                fixture.AssertFullSemver(config, "1.0.0-alpha.foo.1+2");
+            }
         }
 
         [Test]