Mobile application compatibility testing
Application compatibility testing for mobile applications enables enterprises to improve the extraction of mobile application suitability features (MASFs) from an App using techniques other than reading the package's manifest. In addition to performing dependency analysis in the open package format context, embodiments of the invention interpret the analysis results in the context of mobile devices where, in addition to binary, i.e. go/no go, OS compatibility, there is compatibility testing for other suitability metrics, such as enterprise policy compliance and device capability and/or compliance. A MASF results dictionary keeps track of the various identified hardware and software interfaces of the App.
1. A computer-implemented process for testing a mobile application that comprises a manifest file and a binary executable file, the process comprising:
identifying a set of features of the mobile application, wherein identifying the set of features comprises:
identifying, by execution of a manifest analyzer, a plurality of features specified in the manifest file of the mobile application; and
identifying an additional feature at least partly by detecting, by execution of a link analyzer, that the binary executable file comprises a string that matches a signature of the additional feature, said additional feature not specified in the manifest file; and
comparing, by execution of a compliance evaluation module, the identified set of features of the mobile application to a set of features specified by an enterprise policy to determine whether the mobile application complies with the enterprise policy;
said process performed by execution of program instructions by a computing system.
2. The computer-implemented process of claim 1 , wherein the binary executable file is partially encrypted, and the process comprises parsing an unencrypted portion of the binary executable file into strings, and comparing the strings to feature signatures.
3. The computer-implemented process of claim 2 , wherein parsing the unencrypted portion into strings comprises extracting library/object/type information from an unencrypted load command.
4. The computer-implemented process of claim 1 , wherein identifying the additional feature comprises inferring that the mobile application includes the feature by detecting that the binary executable file comprises a load command for loading a library associated with the feature.
5. The computer-implemented process of claim 1 , wherein the additional feature is a microphone usage feature.
6. Non-transitory computer storage having stored thereon a software system that directs a computing system to test a mobile application that comprises a manifest file and a binary executable file, the software system comprising:
an executable manifest analyzer that directs the computing system to identify features of the mobile application by analyzing the manifest file;
an executable link analyzer that directs the computing system to identify features of the mobile application by searching the binary executable file for signatures corresponding to libraries loaded by the mobile application, said link analyzer thereby capable of identifying mobile application features that are not detectable from the manifest file; and
an executable compliance evaluation module that directs the computing system to determine whether the mobile application complies with an enterprise policy at least partly by comparing the mobile application features identified by the executable manifest analyzer and the executable link analyzer to features specified by the enterprise policy.
7. The non-transitory computer storage of claim 6 , wherein, when the binary executable file is partially encrypted, the executable link analyzer is capable of detecting features by comparing unencrypted library load commands of the binary executable file to signatures.
8. The non-transitory computer storage of claim 6 , wherein the executable link analyzer is capable of inferring that a particular feature exists in the mobile application by identifying, from a library load command of the binary executable file, that the mobile application loads a library associated with the particular feature.
9. The non-transitory computer storage of claim 6 , wherein the software system further includes an executable resource analyzer that identifies features of the mobile application by analyzing a peripheral file used by the mobile application.