diff --git a/backend/tests/api/category_tag_test.go b/backend/tests/api/category_tag_test.go
index 888c28147..d7165c885 100644
--- a/backend/tests/api/category_tag_test.go
+++ b/backend/tests/api/category_tag_test.go
@@ -76,7 +76,7 @@ func TestGetCategoryTagsFailsCategoryBadRequest(t *testing.T) {
 	}
 
 	for _, badRequest := range badRequests {
-		appAssert.TestOnError(
+		appAssert = appAssert.TestOnError(
 			h.TestRequest{
 				Method: fiber.MethodGet,
 				Path:   fmt.Sprintf("/api/v1/categories/%s/tags", badRequest),
@@ -140,7 +140,7 @@ func TestGetCategoryTagFailsCategoryBadRequest(t *testing.T) {
 	}
 
 	for _, badRequest := range badRequests {
-		appAssert.TestOnError(
+		appAssert = appAssert.TestOnError(
 			h.TestRequest{
 				Method: fiber.MethodGet,
 				Path:   fmt.Sprintf("/api/v1/categories/%s/tags/%s", badRequest, tagUUID),
@@ -164,7 +164,7 @@ func TestGetCategoryTagFailsTagBadRequest(t *testing.T) {
 	}
 
 	for _, badRequest := range badRequests {
-		appAssert.TestOnError(
+		appAssert = appAssert.TestOnError(
 			h.TestRequest{
 				Method: fiber.MethodGet,
 				Path:   fmt.Sprintf("/api/v1/categories/%s/tags/%s", categoryUUID, badRequest),
diff --git a/backend/tests/api/category_test.go b/backend/tests/api/category_test.go
index 921adf4bf..6bf679046 100644
--- a/backend/tests/api/category_test.go
+++ b/backend/tests/api/category_test.go
@@ -177,7 +177,7 @@ func TestCreateCategoryFailsIfCategoryWithThatNameAlreadyExists(t *testing.T) {
 		modifiedSampleCategoryBody := *SampleCategoryFactory()
 		modifiedSampleCategoryBody["name"] = permutation
 
-		existingAppAssert.TestOnErrorAndTester(
+		existingAppAssert = existingAppAssert.TestOnErrorAndTester(
 			h.TestRequest{
 				Method: fiber.MethodPost,
 				Path:   "/api/v1/categories/",
@@ -224,7 +224,7 @@ func TestGetCategoryFailsBadRequest(t *testing.T) {
 	}
 
 	for _, badRequest := range badRequests {
-		appAssert.TestOnError(
+		appAssert = appAssert.TestOnError(
 			h.TestRequest{
 				Method: fiber.MethodGet,
 				Path:   fmt.Sprintf("/api/v1/categories/%s", badRequest),
@@ -370,7 +370,7 @@ func TestUpdateCategoryFailsBadRequest(t *testing.T) {
 	}
 
 	for _, badRequest := range badRequests {
-		appAssert.TestOnError(
+		appAssert = appAssert.TestOnError(
 			h.TestRequest{
 				Method: fiber.MethodPatch,
 				Path:   fmt.Sprintf("/api/v1/categories/%s", badRequest),
@@ -412,7 +412,7 @@ func TestDeleteCategoryFailsBadRequest(t *testing.T) {
 	}
 
 	for _, badRequest := range badRequests {
-		existingAppAssert.TestOnErrorAndTester(
+		existingAppAssert = existingAppAssert.TestOnErrorAndTester(
 			h.TestRequest{
 				Method: fiber.MethodDelete,
 				Path:   fmt.Sprintf("/api/v1/categories/%s", badRequest),
diff --git a/backend/tests/api/club_tag_test.go b/backend/tests/api/club_tag_test.go
index 3aade82c2..250d335ed 100644
--- a/backend/tests/api/club_tag_test.go
+++ b/backend/tests/api/club_tag_test.go
@@ -56,7 +56,7 @@ func TestCreateClubTagsFailsOnInvalidDataType(t *testing.T) {
 		malformedTag := *SampleTagIDsFactory(nil)
 		malformedTag["tags"] = tag
 
-		appAssert.TestOnError(
+		appAssert = appAssert.TestOnError(
 			h.TestRequest{
 				Method: fiber.MethodPost,
 				Path:   fmt.Sprintf("/api/v1/clubs/%s/tags/", clubUUID),
diff --git a/backend/tests/api/club_test.go b/backend/tests/api/club_test.go
index b7863fe24..6f6059770 100644
--- a/backend/tests/api/club_test.go
+++ b/backend/tests/api/club_test.go
@@ -233,7 +233,7 @@ func AssertCreateBadClubDataFails(t *testing.T, jsonKey string, badValues []inte
 		sampleClubPermutation := *SampleClubFactory(&uuid)
 		sampleClubPermutation[jsonKey] = badValue
 
-		appAssert.TestOnErrorAndTester(
+		appAssert = appAssert.TestOnErrorAndTester(
 			h.TestRequest{
 				Method: fiber.MethodPost,
 				Path:   "/api/v1/clubs/",
@@ -341,7 +341,7 @@ func TestUpdateClubFailsOnInvalidBody(t *testing.T) {
 		{"logo": "@12394X_2"},
 	} {
 		invalidData := invalidData
-		appAssert.TestOnErrorAndTester(
+		appAssert = appAssert.TestOnErrorAndTester(
 			h.TestRequest{
 				Method: fiber.MethodPatch,
 				Path:   fmt.Sprintf("/api/v1/clubs/%s", clubUUID),
@@ -399,7 +399,7 @@ func TestUpdateClubFailsBadRequest(t *testing.T) {
 	sampleStudent, rawPassword := h.SampleStudentFactory()
 
 	for _, badRequest := range badRequests {
-		appAssert.TestOnError(
+		appAssert = appAssert.TestOnError(
 			h.TestRequest{
 				Method: fiber.MethodPatch,
 				Path:   fmt.Sprintf("/api/v1/clubs/%s", badRequest),
@@ -487,7 +487,7 @@ func TestDeleteClubBadRequest(t *testing.T) {
 	}
 
 	for _, badRequest := range badRequests {
-		appAssert.TestOnError(
+		appAssert = appAssert.TestOnError(
 			h.TestRequest{
 				Method: fiber.MethodDelete,
 				Path:   fmt.Sprintf("/api/v1/clubs/%s", badRequest),
diff --git a/backend/tests/api/tag_test.go b/backend/tests/api/tag_test.go
index 77c42fea7..6bb186fb4 100644
--- a/backend/tests/api/tag_test.go
+++ b/backend/tests/api/tag_test.go
@@ -111,7 +111,7 @@ func TestCreateTagFailsBadRequest(t *testing.T) {
 
 	for _, badBody := range badBodys {
 		badBody := badBody
-		appAssert.TestOnErrorAndTester(
+		appAssert = appAssert.TestOnErrorAndTester(
 			h.TestRequest{
 				Method: fiber.MethodPost,
 				Path:   "/api/v1/tags/",
@@ -143,7 +143,7 @@ func TestCreateTagFailsValidation(t *testing.T) {
 
 	for _, badBody := range badBodys {
 		badBody := badBody
-		appAssert.TestOnErrorAndTester(
+		appAssert = appAssert.TestOnErrorAndTester(
 			h.TestRequest{
 				Method: fiber.MethodPost,
 				Path:   "/api/v1/tags/",
@@ -190,7 +190,7 @@ func TestGetTagFailsBadRequest(t *testing.T) {
 	}
 
 	for _, badRequest := range badRequests {
-		appAssert.TestOnError(
+		appAssert = appAssert.TestOnError(
 			h.TestRequest{
 				Method: fiber.MethodGet,
 				Path:   fmt.Sprintf("/api/v1/tags/%s", badRequest),
@@ -314,7 +314,7 @@ func TestUpdateTagFailsBadRequest(t *testing.T) {
 	}
 
 	for _, badRequest := range badRequests {
-		appAssert.TestOnError(
+		appAssert = appAssert.TestOnError(
 			h.TestRequest{
 				Method: fiber.MethodPatch,
 				Path:   fmt.Sprintf("/api/v1/tags/%s", badRequest),
@@ -356,7 +356,7 @@ func TestDeleteTagFailsBadRequest(t *testing.T) {
 	}
 
 	for _, badRequest := range badRequests {
-		appAssert.TestOnErrorAndTester(
+		appAssert = appAssert.TestOnErrorAndTester(
 			h.TestRequest{
 				Method: fiber.MethodDelete,
 				Path:   fmt.Sprintf("/api/v1/tags/%s", badRequest),
diff --git a/backend/tests/api/user_tag_test.go b/backend/tests/api/user_tag_test.go
index e6962f1bb..e6a200c50 100644
--- a/backend/tests/api/user_tag_test.go
+++ b/backend/tests/api/user_tag_test.go
@@ -61,7 +61,7 @@ func CreateSetOfTags(appAssert h.ExistingAppAssert) ([]uuid.UUID, h.ExistingAppA
 	categoryIDs := []uuid.UUID{}
 	for _, category := range *categories {
 		category := category
-		appAssert.TestOnStatusAndTester(
+		appAssert = appAssert.TestOnStatusAndTester(
 			h.TestRequest{
 				Method: fiber.MethodPost,
 				Path:   "/api/v1/categories/",
@@ -88,7 +88,7 @@ func CreateSetOfTags(appAssert h.ExistingAppAssert) ([]uuid.UUID, h.ExistingAppA
 	tagIDs := []uuid.UUID{}
 	for _, tag := range *tags {
 		tag := tag
-		appAssert.TestOnStatusAndTester(
+		appAssert = appAssert.TestOnStatusAndTester(
 			h.TestRequest{
 				Method: fiber.MethodPost,
 				Path:   "/api/v1/tags/",
diff --git a/backend/tests/api/user_test.go b/backend/tests/api/user_test.go
index 272443e55..20e1d0ebe 100644
--- a/backend/tests/api/user_test.go
+++ b/backend/tests/api/user_test.go
@@ -121,7 +121,7 @@ func TestGetUserFailsBadRequest(t *testing.T) {
 	}
 
 	for _, badRequest := range badRequests {
-		appAssert.TestOnError(
+		appAssert = appAssert.TestOnError(
 			h.TestRequest{
 				Method: fiber.MethodGet,
 				Path:   fmt.Sprintf("/api/v1/users/%s", badRequest),
@@ -333,7 +333,7 @@ func TestDeleteUserBadRequest(t *testing.T) {
 	}
 
 	for _, badRequest := range badRequests {
-		appAssert.TestOnErrorAndTester(
+		appAssert = appAssert.TestOnErrorAndTester(
 			h.TestRequest{
 				Method: fiber.MethodDelete,
 				Path:   fmt.Sprintf("/api/v1/users/%s", badRequest),
@@ -498,7 +498,7 @@ func AssertCreateBadDataFails(t *testing.T, jsonKey string, badValues []interfac
 		sampleUserPermutation := *h.SampleStudentJSONFactory(sampleStudent, rawPassword)
 		sampleUserPermutation[jsonKey] = badValue
 
-		appAssert.TestOnErrorAndTester(
+		appAssert = appAssert.TestOnErrorAndTester(
 			h.TestRequest{
 				Method: fiber.MethodPost,
 				Path:   "/api/v1/users/",
@@ -592,7 +592,7 @@ func TestCreateUserFailsOnMissingFields(t *testing.T) {
 		sampleUserPermutation := *h.SampleStudentJSONFactory(sampleStudent, rawPassword)
 		delete(sampleUserPermutation, missingField)
 
-		appAssert.TestOnErrorAndTester(
+		appAssert = appAssert.TestOnErrorAndTester(
 			h.TestRequest{
 				Method: fiber.MethodPost,
 				Path:   "/api/v1/users/",