much cleaner integration test code

test/lazyintegration/main.go

@@ -13,6 +13,8 @@ import (
 	"github.com/jesseduffield/lazygit/pkg/secureexec"
 )
 
+// this program lets you manage integration tests in a TUI.
+
 type App struct {
 	tests   []*integration.Test
 	itemIdx int
@@ -98,7 +100,7 @@ func main() {
 			return nil
 		}
 
-		cmd := secureexec.Command("sh", "-c", fmt.Sprintf("RECORD_EVENTS=true go run integration/main.go %s", currentTest.Name))
+		cmd := secureexec.Command("sh", "-c", fmt.Sprintf("RECORD_EVENTS=true go run test/runner/main.go %s", currentTest.Name))
 		app.runSubprocess(cmd)
 
 		return nil
@@ -112,7 +114,7 @@ func main() {
 			return nil
 		}
 
-		cmd := secureexec.Command("sh", "-c", fmt.Sprintf("go run integration/main.go %s", currentTest.Name))
+		cmd := secureexec.Command("sh", "-c", fmt.Sprintf("go run test/runner/main.go %s", currentTest.Name))
 		app.runSubprocess(cmd)
 
 		return nil
@@ -126,7 +128,7 @@ func main() {
 			return nil
 		}
 
-		cmd := secureexec.Command("sh", "-c", fmt.Sprintf("UPDATE_SNAPSHOTS=true go run integration/main.go %s", currentTest.Name))
+		cmd := secureexec.Command("sh", "-c", fmt.Sprintf("UPDATE_SNAPSHOTS=true go run test/runner/main.go %s", currentTest.Name))
 		app.runSubprocess(cmd)
 
 		return nil

test/runner/main.go

@@ -0,0 +1,62 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"os/exec"
+
+	"github.com/jesseduffield/lazygit/pkg/integration"
+	"github.com/stretchr/testify/assert"
+)
+
+// This file can be invoked directly, but you might find it easier to go through
+// test/lazyintegration/main.go, which provides a convenient gui wrapper to integration
+// tests.
+//
+// If invoked directly, you can specify a test by passing it as the first argument.
+// You can also specify that you want to record a test by passing RECORD_EVENTS=true
+// as an env var.
+
+func main() {
+	record := os.Getenv("RECORD_EVENTS") != ""
+	updateSnapshots := record || os.Getenv("UPDATE_SNAPSHOTS") != ""
+	speedEnv := os.Getenv("SPEED")
+	selectedTestName := os.Args[1]
+
+	err := integration.RunTests(
+		log.Printf,
+		runCmdInTerminal,
+		func(test *integration.Test, f func() error) {
+			if selectedTestName != "" && test.Name != selectedTestName {
+				return
+			}
+			if err := f(); err != nil {
+				log.Print(err.Error())
+			}
+		},
+		updateSnapshots,
+		record,
+		speedEnv,
+		func(expected string, actual string) {
+			assert.Equal(MockTestingT{}, expected, actual, fmt.Sprintf("expected:\n%s\nactual:\n%s\n", expected, actual))
+		},
+	)
+	if err != nil {
+		log.Print(err.Error())
+	}
+}
+
+type MockTestingT struct{}
+
+func (t MockTestingT) Errorf(format string, args ...interface{}) {
+	fmt.Printf(format, args...)
+}
+
+func runCmdInTerminal(cmd *exec.Cmd) error {
+	cmd.Stdout = os.Stdout
+	cmd.Stdin = os.Stdin
+	cmd.Stderr = os.Stderr
+
+	return cmd.Run()
+}