Add analyzed_output property

Create a property called analyzed_output in the
 ImageLayer class located in tern/classes/image_layer.py

Resolves tern-tools#445

Signed-off-by: Manaswini Das <[email protected]>

tern/classes/image_layer.py

@@ -29,6 +29,7 @@ class ImageLayer:
  import_str: The string from a build tool (like a Dockerfile) that
  created this layer by importing it from another image
  files_analyzed: whether the files in this layer are analyzed or not
+ analyzed_output: the result of the file analysis
  methods:
  add_package: adds a package to the layer
  remove_package: removes a package from the layer
@@ -47,6 +48,7 @@ def __init__(self, diff_id, tar_file=None, created_by=None):
  self.__pkg_format = ''
  self.__os_guess = ''
  self.__files_analyzed = False
+ self.__analyzed_output = ''
 
  @property
  def diff_id(self):
@@ -108,6 +110,17 @@ def os_guess(self):
  def os_guess(self, os_guess):
  self.__os_guess = os_guess
 
+ @property
+ def analyzed_output(self):
+ return self.__analyzed_output
+
+ @analyzed_output.setter
+ def analyzed_output(self, analyzed_output):
+ if isinstance(analyzed_output, str):
+ self.__analyzed_output = analyzed_output
+ else:
+ raise ValueError('analyzed_output should be a string')
+
  @property
  def files_analyzed(self):
  return self.__files_analyzed
@@ -118,7 +131,7 @@ def files_analyzed(self, x):
  self.__files_analyzed = x
  else:
  raise ValueError('files_analyzed should be boolean')
- 
+
  def add_package(self, package):
  if isinstance(package, Package):
  if package.name not in self.get_package_names():

tests/test_class_image_layer.py

@@ -39,6 +39,11 @@ def testInstance(self):
  self.assertTrue(self.layer.files_analyzed)
  self.assertRaises(ValueError, setattr, self.layer,
  'files_analyzed', 'some string')
+ self.assertEqual("", self.layer.analyzed_output)
+ self.layer.analyzed_output = 'some string'
+ self.assertEqual(self.layer.analyzed_output, 'some string')
+ self.assertRaises(ValueError, setattr, self.layer,
+ 'analyzed_output', 123)
 
  def testAddPackage(self):
  err = "Object type String, should be Package"