add commit revert integration test

pkg/integration/components/assert.go

@@ -2,6 +2,7 @@ package components
 
 import (
 	"fmt"
+	"os"
 	"regexp"
 	"strings"
 	"time"
@@ -259,3 +260,19 @@ func (self *Assert) assertWithRetries(test func() (bool, string)) {
 func (self *Assert) Fail(message string) {
 	self.gui.Fail(message)
 }
+
+// This does _not_ check the files panel, it actually checks the filesystem
+func (self *Assert) FileSystemPathPresent(path string) {
+	self.assertWithRetries(func() (bool, string) {
+		_, err := os.Stat(path)
+		return err == nil, fmt.Sprintf("Expected path '%s' to exist, but it does not", path)
+	})
+}
+
+// This does _not_ check the files panel, it actually checks the filesystem
+func (self *Assert) FileSystemPathNotPresent(path string) {
+	self.assertWithRetries(func() (bool, string) {
+		_, err := os.Stat(path)
+		return os.IsNotExist(err), fmt.Sprintf("Expected path '%s' to not exist, but it does", path)
+	})
+}

pkg/integration/tests/commit/revert.go

@@ -0,0 +1,37 @@
+package commit
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var Revert = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Reverts a commit",
+	ExtraCmdArgs: "",
+	Skip:         false,
+	SetupConfig:  func(config *config.AppConfig) {},
+	SetupRepo: func(shell *Shell) {
+		shell.CreateFile("myfile", "myfile content")
+		shell.GitAddAll()
+		shell.Commit("first commit")
+	},
+	Run: func(shell *Shell, input *Input, assert *Assert, keys config.KeybindingConfig) {
+		assert.CommitCount(1)
+
+		input.SwitchToCommitsWindow()
+
+		input.PressKeys(keys.Commits.RevertCommit)
+		assert.InConfirm()
+		assert.MatchCurrentViewTitle(Equals("Revert commit"))
+		assert.MatchCurrentViewContent(MatchesRegexp("Are you sure you want to revert \\w+?"))
+		input.Confirm()
+
+		assert.CommitCount(2)
+		assert.MatchHeadCommitMessage(Contains("Revert \"first commit\""))
+		input.PreviousItem()
+		assert.MatchMainViewContent(Contains("-myfile content"))
+		assert.FileSystemPathNotPresent("myfile")
+
+		input.Wait(10)
+	},
+})

pkg/integration/tests/tests.go

@@ -37,6 +37,7 @@ var tests = []*components.IntegrationTest{
 	cherry_pick.CherryPickConflicts,
 	commit.Commit,
 	commit.CommitMultiline,
+	commit.Revert,
 	commit.NewBranch,
 	commit.Staged,
 	commit.Unstaged,