fix panic on rebase

pkg/gui/presentation/commits.go

@@ -50,10 +50,9 @@ func GetCommitListDisplayStrings(
 		return nil
 	}
 
-	// this is where my non-TODO commits begin
-	rebaseOffset := indexOfFirstNonTODOCommit(commits)
-
 	end := utils.Min(startIdx+length, len(commits))
+	// this is where my non-TODO commits begin
+	rebaseOffset := utils.Min(indexOfFirstNonTODOCommit(commits), end)
 
 	filteredCommits := commits[startIdx:end]
 

pkg/gui/presentation/commits_test.go

@@ -34,6 +34,7 @@ func TestGetCommitListDisplayStrings(t *testing.T) {
 		showGraph                bool
 		bisectInfo               *git_commands.BisectInfo
 		expected                 string
+		focus                    bool
 	}{
 		{
 			testName:   "no commits",
@@ -174,10 +175,36 @@ func TestGetCommitListDisplayStrings(t *testing.T) {
 			sha5 ◯ commit5
 				`),
 		},
+		{
+			testName: "only TODO commits except last",
+			commits: []*models.Commit{
+				{Name: "commit1", Sha: "sha1", Parents: []string{"sha2", "sha3"}, Action: "pick"},
+				{Name: "commit2", Sha: "sha2", Parents: []string{"sha3"}, Action: "pick"},
+				{Name: "commit3", Sha: "sha3", Parents: []string{"sha4"}, Action: "pick"},
+				{Name: "commit4", Sha: "sha4", Parents: []string{"sha5"}, Action: "pick"},
+				{Name: "commit5", Sha: "sha5", Parents: []string{"sha7"}},
+			},
+			startIdx:   0,
+			length:     2,
+			showGraph:  true,
+			bisectInfo: git_commands.NewNullBisectInfo(),
+			expected: formatExpected(`
+			sha1 pick  commit1
+			sha2 pick  commit2
+				`),
+		},
+	}
+
+	focusing := false
+	for _, scenario := range scenarios {
+		if scenario.focus {
+			focusing = true
+		}
 	}
 
 	for _, s := range scenarios {
 		s := s
+		if !focusing || s.focus {
 			t.Run(s.testName, func(t *testing.T) {
 				result := GetCommitListDisplayStrings(
 					s.commits,
@@ -199,3 +226,4 @@ func TestGetCommitListDisplayStrings(t *testing.T) {
 			})
 		}
 	}
+}