add tests for GitVersionTagRequired in RawClone

Author: kostiakoval

Sources/dep/get.swift

@@ -149,9 +149,9 @@ extension Sandbox: Fetcher {
 
         init(path: String) throws {
             self.path = path
-          if !repo.hasVersion {
-            throw Error.GitVersionTagRequired(path)
-          }
+            if !repo.hasVersion {
+                throw Error.GitVersionTagRequired(path)
+            }
         }
 
         var repo: Git.Repo {

Tests/dep/GitTests.swift

@@ -20,6 +20,9 @@ class GitTests: XCTestCase, XCTestCaseProvider {
         return [
             ("testHasVersion", testHasVersion),
             ("testHasNoVersion", testHasNoVersion),
+            ("testCloneShouldNotCrashWihoutTags", testCloneShouldNotCrashWihoutTags),
+            ("testCloneShouldCrashWihoutTags", testCloneShouldCrashWihoutTags),
+
         ]
     }
 
@@ -36,6 +39,14 @@ class GitTests: XCTestCase, XCTestCaseProvider {
             XCTAssertFalse(gitRepo.hasVersion)
         }
     }
+
+    func testCloneShouldNotCrashWihoutTags() {
+        tryCloningRepoWithTag("0.1.0", shouldCrash: false)
+    }
+
+    func testCloneShouldCrashWihoutTags() {
+        tryCloningRepoWithTag(nil, shouldCrash: true)
+    }
 }
 
 //MARK: - Helpers
@@ -59,3 +70,18 @@ private func makeGitRepo(dstdir: String, tag: String?, file: StaticString = __FI
     }
     return nil
 }
+
+private func tryCloningRepoWithTag(tag: String?, shouldCrash: Bool) {
+    var done = !shouldCrash
+    mktmpdir { path in
+        makeGitRepo(path, tag: tag)!
+        do {
+            _ = try Sandbox.RawClone(path: path)
+        } catch Error.GitVersionTagRequired {
+            done = shouldCrash
+        } catch {
+            XCTFail()
+        }
+        XCTAssertTrue(done)
+    }
+}