Change not to use cat command

pkg/commands/files_test.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os/exec"
-	"runtime"
 	"testing"
 
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
@@ -13,28 +12,6 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-// TestGitCommandCatFile tests emitting a file using commands, where commands vary by OS.
-func TestGitCommandCatFile(t *testing.T) {
-	var osCmd string
-	switch os := runtime.GOOS; os {
-	case "windows":
-		osCmd = "type"
-	default:
-		osCmd = "cat"
-	}
-	gitCmd := NewDummyGitCommand()
-	gitCmd.OSCommand.Command = func(cmd string, args ...string) *exec.Cmd {
-		assert.EqualValues(t, osCmd, cmd)
-		assert.EqualValues(t, []string{"test.txt"}, args)
-
-		return secureexec.Command("echo", "-n", "test")
-	}
-
-	o, err := gitCmd.CatFile("test.txt")
-	assert.NoError(t, err)
-	assert.Equal(t, "test", o)
-}
-
 // TestGitCommandStageFile is a function.
 func TestGitCommandStageFile(t *testing.T) {
 	gitCmd := NewDummyGitCommand()