Split the huge merge_target_files script into multiple files.

Bug: 221858722
Test: m otatools; Use to create merged builds
Test: atest --host releasetools_test
Change-Id: I5f932f160d3f6405b41a7721b1c75cc96749e77b

tools/releasetools/merge/test_merge_meta.py

@@ -0,0 +1,110 @@
+#
+# Copyright (C) 2017 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.
+#
+
+import os.path
+import shutil
+
+import common
+import merge_meta
+import merge_target_files
+import test_utils
+
+
+class MergeMetaTest(test_utils.ReleaseToolsTestCase):
+
+  def setUp(self):
+    self.testdata_dir = test_utils.get_testdata_dir()
+    self.OPTIONS = merge_target_files.OPTIONS
+    self.OPTIONS.framework_partition_set = set(
+        ['product', 'system', 'system_ext'])
+    self.OPTIONS.vendor_partition_set = set(['odm', 'vendor'])
+
+  def test_MergePackageKeys_ReturnsTrueIfNoConflicts(self):
+    output_meta_dir = common.MakeTempDir()
+
+    framework_meta_dir = common.MakeTempDir()
+    os.symlink(
+        os.path.join(self.testdata_dir, 'apexkeys_framework.txt'),
+        os.path.join(framework_meta_dir, 'apexkeys.txt'))
+
+    vendor_meta_dir = common.MakeTempDir()
+    os.symlink(
+        os.path.join(self.testdata_dir, 'apexkeys_vendor.txt'),
+        os.path.join(vendor_meta_dir, 'apexkeys.txt'))
+
+    merge_meta.MergePackageKeys(framework_meta_dir, vendor_meta_dir,
+                                output_meta_dir, 'apexkeys.txt')
+
+    merged_entries = []
+    merged_path = os.path.join(self.testdata_dir, 'apexkeys_merge.txt')
+
+    with open(merged_path) as f:
+      merged_entries = f.read().split('\n')
+
+    output_entries = []
+    output_path = os.path.join(output_meta_dir, 'apexkeys.txt')
+
+    with open(output_path) as f:
+      output_entries = f.read().split('\n')
+
+    return self.assertEqual(merged_entries, output_entries)
+
+  def test_MergePackageKeys_ReturnsFalseIfConflictsPresent(self):
+    output_meta_dir = common.MakeTempDir()
+
+    framework_meta_dir = common.MakeTempDir()
+    os.symlink(
+        os.path.join(self.testdata_dir, 'apexkeys_framework.txt'),
+        os.path.join(framework_meta_dir, 'apexkeys.txt'))
+
+    conflict_meta_dir = common.MakeTempDir()
+    os.symlink(
+        os.path.join(self.testdata_dir, 'apexkeys_framework_conflict.txt'),
+        os.path.join(conflict_meta_dir, 'apexkeys.txt'))
+
+    self.assertRaises(ValueError, merge_meta.MergePackageKeys,
+                      framework_meta_dir, conflict_meta_dir, output_meta_dir,
+                      'apexkeys.txt')
+
+  def test_MergePackageKeys_HandlesApkCertsSyntax(self):
+    output_meta_dir = common.MakeTempDir()
+
+    framework_meta_dir = common.MakeTempDir()
+    os.symlink(
+        os.path.join(self.testdata_dir, 'apkcerts_framework.txt'),
+        os.path.join(framework_meta_dir, 'apkcerts.txt'))
+
+    vendor_meta_dir = common.MakeTempDir()
+    os.symlink(
+        os.path.join(self.testdata_dir, 'apkcerts_vendor.txt'),
+        os.path.join(vendor_meta_dir, 'apkcerts.txt'))
+
+    merge_meta.MergePackageKeys(framework_meta_dir, vendor_meta_dir,
+                                output_meta_dir, 'apkcerts.txt')
+
+    merged_entries = []
+    merged_path = os.path.join(self.testdata_dir, 'apkcerts_merge.txt')
+
+    with open(merged_path) as f:
+      merged_entries = f.read().split('\n')
+
+    output_entries = []
+    output_path = os.path.join(output_meta_dir, 'apkcerts.txt')
+
+    with open(output_path) as f:
+      output_entries = f.read().split('\n')
+
+    return self.assertEqual(merged_entries, output_entries)