Distinguish between user and owner passwords.

core/fpdfapi/fpdf_parser/cpdf_security_handler_embeddertest.cpp

+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "testing/embedder_test.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class CPDFSecurityHandlerEmbeddertest : public EmbedderTest {};
+
+TEST_F(CPDFSecurityHandlerEmbeddertest, Unencrypted) {
+  ASSERT_TRUE(OpenDocument("about_blank.pdf"));
+  EXPECT_EQ(0xFFFFFFFF, FPDF_GetDocPermissions(document()));
+}
+
+TEST_F(CPDFSecurityHandlerEmbeddertest, UnencryptedWithPassword) {
+  ASSERT_TRUE(OpenDocument("about_blank.pdf", "foobar"));
+  EXPECT_EQ(0xFFFFFFFF, FPDF_GetDocPermissions(document()));
+}
+
+TEST_F(CPDFSecurityHandlerEmbeddertest, NoPassword) {
+  EXPECT_FALSE(OpenDocument("encrypted.pdf"));
+}
+
+TEST_F(CPDFSecurityHandlerEmbeddertest, UserPassword) {
+  ASSERT_TRUE(OpenDocument("encrypted.pdf", "1234"));
+  EXPECT_EQ(0xFFFFF2C0, FPDF_GetDocPermissions(document()));
+}
+
+TEST_F(CPDFSecurityHandlerEmbeddertest, OwnerPassword) {
+  ASSERT_TRUE(OpenDocument("encrypted.pdf", "5678"));
+  EXPECT_EQ(0xFFFFFFFC, FPDF_GetDocPermissions(document()));
+}