Simplify PathFinder test

helpers/path_finder_test.go

@@ -1,8 +1,6 @@
 package helpers_test
 
 import (
-	"crypto/rand"
-
 	"github.com/cloudfoundry/bosh-bootloader/helpers"
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
@@ -15,29 +13,15 @@ var _ = Describe("PathFinder", func() {
 	})
 
 	Describe("CommandExists", func() {
-		var command string
 		Context("when a command does not exist", func() {
-			BeforeEach(func() {
-				commandBytes := make([]byte, 32)
-
-				_, err := rand.Read(commandBytes)
-				Expect(err).NotTo(HaveOccurred())
-
-				command = string(commandBytes)
-			})
-
 			It("returns false", func() {
-				Expect(pathFinder.CommandExists(command)).To(BeFalse())
+				Expect(pathFinder.CommandExists("non-existent-command")).To(BeFalse())
 			})
 		})
 
 		Context("when a command exists", func() {
-			BeforeEach(func() {
-				command = "ginkgo"
-			})
-
 			It("returns true", func() {
-				Expect(pathFinder.CommandExists(command)).To(BeTrue())
+				Expect(pathFinder.CommandExists("ls")).To(BeTrue())
 			})
 		})
 	})