When testing Python code, one sometimes has to imitate a broken or missing module. In a specific example, the pywin32 package requires running a post-installation script with administrator privileges after initial installation. Importing, for example, the win32security module of pywin32 may throw an ImportError if the postinstallation script wasn't executed. Packages that depend on pywin32 may want to handle this situation gracefully so that users who just pip install mypackage get only a soft failure or at least a helpful error message. If one wants to test this behavior in continuous integration and get code coverage, the ImportError has to be triggered even if pywin32 is installed correctly. Here is a short example that mimicks a broken or missing package with pytest and monkeypatch, since I didn't find this elsewhere:
Comments: Be first to comment!
Comments: Comments are closed.
Comments: Comments are closed.
Comments: Comments are closed.
Category: Materials Comments: Comments are closed.
Category: Plants Comments: Comments are closed.
Comments: Comments are closed.
Many scientists swear by LaTeX, while others prefer Word or LibreOffice. I personally use LaTeX for any serious scientific writing. But for which reasons do people use LaTeX?
Comments: Comments are closed.
Comments: Comments are closed.
Variable resistors were constructed from epitaxial $\ce{SrRuO3}$ (SRO), $\ce{La_{0.67}Sr_{0.33}MnO3}$ (LSMO) and $\ce{SrTiO3}$ layers with perovskite crystal structure. Each layer was patterned separately by lithographic methods. Optimized wet chemical etchants and several polishing steps in organic solvents allowed good epitaxy of subsequent layers, comparable to epitaxy on pristine substrates. Periodate as the oxidizing agent for SRO and iodide with ascorbic acid as the reducing agents for LSMO were used to attack these chemically resistant oxides. The final devices changed their conductance in a similar manner to previously described variable resistors that were defined with shadow masks.
This article was originally published in Thin Solid Films (2013)
Category: Journal article Comments: 1 comment