diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 36113ae..818b4c5 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,7 +28,9 @@ jobs:
           mv go-junit-report /usr/local/bin/
 
       - name: Run tests
-        run: go test -v 2>&1 ./... -coverprofile=coverage.txt | tee test-results.txt
+        run: |
+          set -o pipefail
+          go test -v 2>&1 ./... -coverprofile=coverage.txt | tee test-results.txt
       - name: Analyse test results
         run: go-junit-report < test-results.txt > report.xml
       - name: Upload test result artifact
diff --git a/converter/converter_test.go b/converter/converter_test.go
index 43bef1a..445aa86 100644
--- a/converter/converter_test.go
+++ b/converter/converter_test.go
@@ -125,7 +125,7 @@ func genHugePages(path string) (*manga.Chapter, error) {
 
 	var pages []*manga.Page
 	for i := 0; i < 5; i++ { // Assuming there are 5 pages for the test
-		img := image.NewRGBA(image.Rect(0, 0, 300, 17000))
+		img := image.NewRGBA(image.Rect(0, 0, 1, 17000))
 		buf := new(bytes.Buffer)
 		err := jpeg.Encode(buf, img, nil)
 		if err != nil {
@@ -212,7 +212,7 @@ func genMixSmallHuge(path string) (*manga.Chapter, error) {
 
 	var pages []*manga.Page
 	for i := 0; i < 10; i++ { // Assuming there are 5 pages for the test
-		img := image.NewRGBA(image.Rect(0, 0, 300, 2000*(i+1)))
+		img := image.NewRGBA(image.Rect(0, 0, 1, 2000*(i+1)))
 		buf := new(bytes.Buffer)
 		err := jpeg.Encode(buf, img, nil)
 		if err != nil {