Remove wrong warning on diverging wip branch when joining new session

Author: gregorriegler

mob.go

@@ -751,7 +751,7 @@ func startJoinMobSession(configuration config.Configuration) {
 	baseBranch, currentWipBranch := determineBranches(gitCurrentBranch(), gitBranches(), configuration)
 
 	say.Info("joining existing session from " + currentWipBranch.remote(configuration).String())
-	if doBranchesDiverge(baseBranch.remote(configuration).Name, currentWipBranch.Name) {
+	if hasLocalBranch(currentWipBranch.Name) && doBranchesDiverge(baseBranch.remote(configuration).Name, currentWipBranch.Name) {
 		say.Warning("Careful, your wip branch (" + currentWipBranch.Name + ") diverges from your main branch (" + baseBranch.remote(configuration).Name + ") !")
 	}
 

mob_test.go

@@ -355,6 +355,19 @@ func TestStartWarnsOnDivergingWipBranch(t *testing.T) {
 	assertOutputContains(t, output, "Careful, your wip branch (mob-session) diverges from your main branch (origin/master) !")
 }
 
+func TestStartJoinDoesNotWarn(t *testing.T) {
+	output, configuration := setup(t)
+
+	start(configuration)
+	createFileAndCommitIt(t, "example.txt", "asdf", "asdf")
+	next(configuration)
+
+	setWorkingDir(tempDir + "/localother")
+	start(configuration)
+
+	assertOutputNotContains(t, output, "Careful, your wip branch (mob-session) diverges from your main branch (origin/master) !")
+}
+
 func TestStartNextOnFeatureWithBranch(t *testing.T) {
 	_, configuration := setup(t)
 	configuration.WipBranchQualifier = "green"