Update testing setup

script/application.go

@@ -152,13 +152,6 @@ func (a *Application) FileName() string {
 }
 
 func (a *Application) SetApprover() error {
-	if isTesting() {
-		a.ApproverId = 123
-		a.ApproverUsername = "test-username"
-
-		return nil
-	}
-
 	approverIdValue, err := getEnv("APPROVER_ID")
 	if err != nil {
 		return err

script/application_test.go

@@ -6,6 +6,23 @@ import (
 	"testing"
 )
 
+func setupTestDir(targetDir string) (cleanupFunc func(), err error) {
+	originalDir, err := os.Getwd()
+	if err != nil {
+		return nil, fmt.Errorf("failed to get current directory: %s", err)
+	}
+
+	if err := os.Chdir(targetDir); err != nil {
+		return nil, fmt.Errorf("failed to change working directory: %s", err)
+	}
+
+	return func() {
+		if err := os.Chdir(originalDir); err != nil {
+			fmt.Printf("Failed to change back to original directory: %s\n", err)
+		}
+	}, nil
+}
+
 func errNoProjectName(sectionTitle string) error {
 	return fmt.Errorf("**%s** is missing project name", sectionTitle)
 }
@@ -38,21 +55,13 @@ func errInvalidURL(sectionTitle string) error {
 	return fmt.Errorf("**%s** is an invalid URL", sectionTitle)
 }
 
-func TestApplication(t *testing.T) {
-	originalDir, err := os.Getwd()
+func TestApplication_Parse(t *testing.T) {
+	cleanup, err := setupTestDir("../")
 	if err != nil {
-		t.Fatalf("Failed to get current directory: %s", err)
+		t.Fatalf(err.Error())
 	}
 
-	defer func() {
-		if err := os.Chdir(originalDir); err != nil {
-			t.Fatalf("Failed to change back to original directory: %s", err)
-		}
-	}()
-
-	if err := os.Chdir("../"); err != nil {
-		t.Fatalf("Failed to change working directory: %s", err)
-	}
+	defer cleanup()
 
 	testCases := []struct {
 		name             string
@@ -147,3 +156,52 @@ func TestApplication(t *testing.T) {
 		})
 	}
 }
+
+func TestApplication_FileName(t *testing.T) {
+	testCases := []struct {
+		issueNumber      int
+		projectName      string
+		expectedFilename string
+	}{
+		{123, "Test project", "123-test-project.json"},
+		{456, "My_Team", "456-my_team.json"},
+		{789, "Event: Re/Act?", "789-event-react.json"},
+		{101, "Project--With---Dashes", "101-project-with-dashes.json"},
+	}
+
+	for _, tt := range testCases {
+		t.Run(tt.expectedFilename, func(t *testing.T) {
+			app := Application{
+				IssueNumber: tt.issueNumber,
+				Project:     Project{Name: tt.projectName},
+			}
+
+			filename := app.FileName()
+			if filename != tt.expectedFilename {
+				t.Errorf("FileName() is %s, expected %v", filename, tt.expectedFilename)
+			}
+		})
+	}
+}
+
+func TestApplication_SetApprover(t *testing.T) {
+	cleanup, err := setupTestDir("../")
+	if err != nil {
+		t.Fatalf(err.Error())
+	}
+
+	defer cleanup()
+
+	setTestApplication("project")
+	app := Application{}
+
+	app.SetApprover()
+
+	if app.ApproverId != 123 {
+		t.Errorf("SetApprover() set ApproverId to %d, expected 123", app.ApproverId)
+	}
+
+	if app.ApproverUsername != "wendyappleseed" {
+		t.Errorf("SetApprover() set ApproverUsername to %s, expected wendyappleseed", app.ApproverUsername)
+	}
+}

script/approver.go

@@ -13,14 +13,11 @@ import (
 )
 
 type Approver struct {
-	gitHub      GitHub
-	application Application
+	gitHub      *GitHub
+	application *Application
 }
 
 func (a *Approver) Approve() {
-	a.gitHub = GitHub{}
-	a.application = Application{}
-
 	if err := a.application.SetApprover(); err != nil {
 		a.logErrorAndExit("could not set application approver", err)
 	}

script/main.go

@@ -50,12 +50,21 @@ func main() {
 		printUsageAndExit()
 	}
 
+	github := GitHub{}
+	application := Application{}
+
 	switch command {
 	case "review":
-		reviewer := Reviewer{}
+		reviewer := Reviewer{
+			gitHub:      &github,
+			application: &application,
+		}
 		reviewer.Review()
 	case "approve":
-		approver := Approver{}
+		approver := Approver{
+			gitHub:      &github,
+			application: &application,
+		}
 		approver.Approve()
 	default:
 		fmt.Printf("Invalid command: %s\n", command)

script/reviewer.go

@@ -17,14 +17,11 @@ const (
 )
 
 type Reviewer struct {
-	gitHub      GitHub
-	application Application
+	gitHub      *GitHub
+	application *Application
 }
 
 func (r *Reviewer) Review() {
-	r.gitHub = GitHub{}
-	r.application = Application{}
-
 	if err := r.gitHub.Init(); err != nil {
 		r.logErrorAndExit("could not initialize GitHub client", err)
 	}

script/testing.go

@@ -193,6 +193,13 @@ func setTestApplication(testName string) {
 		log.Fatalf(err.Error())
 	}
 
+	if err := os.Setenv("APPROVER_ID", "123"); err != nil {
+		log.Fatalf("Failed to set environment variable: %s", err)
+	}
+	if err := os.Setenv("APPROVER_USERNAME", "wendyappleseed"); err != nil {
+		log.Fatalf("Failed to set environment variable: %s", err)
+	}
+
 	testIssue = &issue
 }