diff --git a/fpdfsdk/fpdf_ppo_embeddertest.cpp b/fpdfsdk/fpdf_ppo_embeddertest.cpp
index 9fd2114..e063737 100644
--- a/fpdfsdk/fpdf_ppo_embeddertest.cpp
+++ b/fpdfsdk/fpdf_ppo_embeddertest.cpp
@@ -26,7 +26,7 @@
 }  // namespace
 
 TEST_F(FPDFPPOEmbedderTest, NoViewerPreferences) {
-  EXPECT_TRUE(OpenDocument("hello_world.pdf"));
+  ASSERT_TRUE(OpenDocument("hello_world.pdf"));
 
   FPDF_DOCUMENT output_doc = FPDF_CreateNewDocument();
   EXPECT_TRUE(output_doc);
@@ -35,7 +35,7 @@
 }
 
 TEST_F(FPDFPPOEmbedderTest, ViewerPreferences) {
-  EXPECT_TRUE(OpenDocument("viewer_ref.pdf"));
+  ASSERT_TRUE(OpenDocument("viewer_ref.pdf"));
 
   FPDF_DOCUMENT output_doc = FPDF_CreateNewDocument();
   EXPECT_TRUE(output_doc);
@@ -161,7 +161,7 @@
 }
 
 TEST_F(FPDFPPOEmbedderTest, BadRanges) {
-  EXPECT_TRUE(OpenDocument("hello_world.pdf"));
+  ASSERT_TRUE(OpenDocument("hello_world.pdf"));
 
   FPDF_PAGE page = LoadPage(0);
   EXPECT_TRUE(page);
@@ -184,7 +184,7 @@
 }
 
 TEST_F(FPDFPPOEmbedderTest, GoodRanges) {
-  EXPECT_TRUE(OpenDocument("viewer_ref.pdf"));
+  ASSERT_TRUE(OpenDocument("viewer_ref.pdf"));
 
   FPDF_PAGE page = LoadPage(0);
   EXPECT_TRUE(page);
@@ -206,7 +206,7 @@
 }
 
 TEST_F(FPDFPPOEmbedderTest, BUG_664284) {
-  EXPECT_TRUE(OpenDocument("bug_664284.pdf"));
+  ASSERT_TRUE(OpenDocument("bug_664284.pdf"));
 
   FPDF_PAGE page = LoadPage(0);
   ASSERT_NE(nullptr, page);
@@ -266,7 +266,7 @@
 }
 
 TEST_F(FPDFPPOEmbedderTest, ImportWithZeroLengthStream) {
-  EXPECT_TRUE(OpenDocument("zero_length_stream.pdf"));
+  ASSERT_TRUE(OpenDocument("zero_length_stream.pdf"));
   FPDF_PAGE page = LoadPage(0);
   ASSERT_TRUE(page);