Build API: Naming convention changes for clarity.

The overloading of API was needlessly confusing and promoted
incorrect usage. These changes fix the naming conventions so
they're more unique and their roles are clearer.

BUG=None
TEST=run_tests, precq

Change-Id: Iff1232b043d57861f48c6271ecc6df013fe21b54
Reviewed-on: https://chromium-review.googlesource.com/1491799
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Alex Klein <saklein@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
diff --git a/api/controller/board_build_dependency_unittest.py b/api/controller/board_build_dependency_unittest.py
new file mode 100644
index 0000000..c64623a
--- /dev/null
+++ b/api/controller/board_build_dependency_unittest.py
@@ -0,0 +1,71 @@
+# -*- coding: utf-8 -*-
+# Copyright 2019 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+"""Board build dependency service tests."""
+
+from __future__ import print_function
+
+from chromite.api.controller import board_build_dependency
+from chromite.lib import cros_test_lib
+
+
+class BoardBuilDependencyTest(cros_test_lib.TestCase):
+  """Unittests for board_build_dependency."""
+
+  def testCreateDepGraphProtoFromJsonMap(self):
+    json_deps = {
+        'target_board': 'deathstar',
+        'package_deps': {
+            'commander/darthvader-1.49.3.3': {
+                'action': 'merge',
+                'category': 'commander',
+                'cpes': [],
+                'deps': ['troop/clone', 'troop/robot'],
+                'rev_deps': [],
+                'full_name': 'commander/darthvader-1.49.3.3',
+                'name': 'darthvader',
+                'version': '1.49.3.3'
+            },
+            'troop/clone-1.2.3': {
+                'action': 'merge',
+                'category': 'troop',
+                'cpes': [],
+                'deps': [],
+                'rev_deps': ['commander/darthvader'],
+                'full_name': 'troop/clone-1.2.3',
+                'name': 'clone',
+                'version': '1.2.3'
+            },
+            'troop/robot-2.3.4': {
+                'action': 'merge',
+                'category': 'troop',
+                'cpes': [],
+                'deps': [],
+                'rev_deps': ['commander/darthvader'],
+                'full_name': 'troop/robot-2.3.4',
+                'name': 'robot',
+                'version': '2.3.4'
+            },
+        },
+        'source_path_mapping': {
+            'commander/darthvader-1.49.3.3': ['/control/room'],
+            'troop/clone-1.2.3': ['/bunker'],
+            'troop/robot-2.3.4': ['/factory'],
+        },
+    }
+
+    depgraph_proto = board_build_dependency.CreateDepGraphProtoFromJsonMap(
+        json_deps)
+    self.assertEqual(depgraph_proto.build_target.name, 'deathstar')
+    darthvader_dep = None
+    for package_dep_info in depgraph_proto.package_deps:
+      if package_dep_info.package_info.package_name == 'darthvader':
+        darthvader_dep = package_dep_info
+    self.assertTrue(darthvader_dep)
+    self.assertEquals(darthvader_dep.dependency_packages[0].category,
+                      'troop')
+    self.assertEquals(darthvader_dep.dependency_packages[0].package_name,
+                      'clone')
+    self.assertEquals(darthvader_dep.dependency_source_paths[0].path,
+                      '/control/room')