AFW: Lookup shared library resource ids

Shared libraries were failing to retrieve correct resource ids from the
values of attributes in xml files. The packages of the shared ids were
not changed from 0 to their runtime assigned package ids.

Bug: 112776204
Test: atest FieldsClassificationTest#testGetAlgorithm
Change-Id: I509bc7632f5ec3e9b644e590934e6cf569a4d938

1 files changed, 74 insertions, 0 deletions

diff --git a/libs/androidfw/tests/DynamicRefTable_test.cpp b/libs/androidfw/tests/DynamicRefTable_test.cpp
new file mode 100644
index 000000000000..df44e343b2b4
--- /dev/null
+++ b/libs/androidfw/tests/DynamicRefTable_test.cpp
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "androidfw/ResourceTypes.h"
+#include "utils/String8.h"
+
+#include "gtest/gtest.h"
+namespace android {
+
+TEST(DynamicRefTableTest, LookupSharedLibSelfReferences) {
+  // Shared library
+  DynamicRefTable shared_table(0x02, /* appAsLib */ false);
+  shared_table.addMapping(0x00, 0x02);
+  Res_value value;
+  value.dataType = Res_value::TYPE_REFERENCE;
+  value.data = 0x00010000;
+  ASSERT_EQ(shared_table.lookupResourceValue(&value), NO_ERROR);
+  EXPECT_EQ(value.data, 0x02010000);
+
+  // App loaded as a shared library
+  DynamicRefTable shared_app_table(0x02, /* appAsLib */ true);
+  shared_app_table.addMapping(0x7f, 0x02);
+  Res_value value2;
+  value2.dataType = Res_value::TYPE_REFERENCE;
+  value2.data = 0x7f010000;
+  ASSERT_EQ(shared_app_table.lookupResourceValue(&value2), NO_ERROR);
+  EXPECT_EQ(value2.data, 0x02010000);
+};
+
+TEST(DynamicRefTableTest, LookupDynamicReferences) {
+  // Shared library
+  DynamicRefTable shared_table(0x2, /* appAsLib */ false);
+  shared_table.addMapping(0x00, 0x02);
+  shared_table.addMapping(0x03, 0x05);
+  Res_value value;
+  value.dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
+  value.data = 0x03010000;
+  ASSERT_EQ(shared_table.lookupResourceValue(&value), NO_ERROR);
+  EXPECT_EQ(value.data, 0x05010000);
+
+  // App loaded as a shared library
+  DynamicRefTable shared_app_table(0x2, /* appAsLib */ true);
+  shared_app_table.addMapping(0x03, 0x05);
+  shared_app_table.addMapping(0x7f, 0x2);
+  Res_value value2;
+  value2.dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
+  value2.data = 0x03010000;
+  ASSERT_EQ(shared_app_table.lookupResourceValue(&value2), NO_ERROR);
+  EXPECT_EQ(value2.data, 0x05010000);
+
+  // Regular application
+  DynamicRefTable app_table(0x7f, /* appAsLib */ false);
+  app_table.addMapping(0x03, 0x05);
+  Res_value value3;
+  value3.dataType = Res_value::TYPE_REFERENCE;
+  value3.data = 0x03010000;
+  ASSERT_EQ(app_table.lookupResourceValue(&value3), NO_ERROR);
+  EXPECT_EQ(value3.data, 0x05010000);
+};
+
+} // namespace android
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