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This past week I sat in a class at work about the newer features of Java 8-10, mainly lambdas and streams. I was like "oh, Java is catching up I see" while another developer was like "What? I don't understand? How would you unit test a stream statement?"



Streams are reasonably testable; I wrote streams-heavy code for a year, and did not have issues with that.

Very long streams can be combined of shorter stages, and these stages are individually testable, when needed.




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