[git] Add widget tests for empty state

GitOrigin-RevId: ff352a397db8ba39acb1ca3c88b2a308584feb94

plugins/git4idea/testData/widgetTree/MultipleFreshRepos

@@ -0,0 +1,9 @@
+-Update Project...
+-Commit…
+-Push…
+------
+-New Branch…
+-Checkout Tag or Revision…
+------
+-bro-repo
+-project

plugins/git4idea/testData/widgetTree/MultipleFreshReposNoSync

@@ -0,0 +1,12 @@
+-Update Project...
+-Commit…
+-Push…
+------
+-New Branch…
+-Checkout Tag or Revision…
+------
+-bro-repo
+-project
+------
+-Local Branches in project
+ master [icons/currentBranchFavoriteLabel.svg]

plugins/git4idea/testData/widgetTree/SingleFreshRepo

@@ -0,0 +1,9 @@
+-Update Project...
+-Commit…
+-Push…
+------
+-New Branch…
+-Checkout Tag or Revision…
+------
+-Local
+ master [icons/currentBranchFavoriteLabel.svg]

plugins/git4idea/tests/git4idea/branch/GitWidgetTreeStructureTest.kt

@@ -8,10 +8,12 @@ import com.intellij.openapi.vcs.Executor.cd
 import com.intellij.testFramework.PlatformTestUtil
 import com.intellij.testFramework.TestDataPath
 import com.intellij.testFramework.assertions.Assertions
+import com.intellij.testFramework.utils.io.deleteRecursively
 import com.intellij.ui.SeparatorWithText
 import com.intellij.ui.tree.TreeTestUtil
 import com.intellij.ui.treeStructure.Tree
 import com.intellij.vcs.git.shared.repo.GitRepositoriesFrontendHolder
+import git4idea.GitUtil
 import git4idea.config.GitVcsSettings
 import git4idea.repo.GitRepository
 import git4idea.test.*
@@ -178,6 +180,30 @@ class GitWidgetTreeStructureTest : GitPlatformTest() {
     compareWithSnapshot(buildTestTree("group"))
   }
 
+  fun testSingleFreshRepo() {
+    resetToFreshState(repo)
+    compareWithSnapshot(buildTestTree())
+  }
+
+  fun testMultipleFreshRepos() {
+    resetToFreshState(repo)
+    registerBroRepo().also { resetToFreshState(it) }
+    compareWithSnapshot(buildTestTree())
+  }
+
+  fun testMultipleFreshReposNoSync() {
+    settings.syncSetting = DvcsSyncSettings.Value.DONT_SYNC
+
+    resetToFreshState(repo)
+    registerBroRepo().also { resetToFreshState(it) }
+    compareWithSnapshot(buildTestTree())
+  }
+
+  private fun resetToFreshState(repo: GitRepository) {
+    repo.root.toNioPath().resolve(GitUtil.DOT_GIT).deleteRecursively()
+    repo.git("init")
+  }
+
   private fun createRefs(repo: GitRepository, ensureTags: Boolean = false) {
     listOf("test", "group/test", "another/group/test").forEach {
       repo.branch(it)