Testing
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Starboard attempts to make the porting process as easy as possible. To that
end, Starboard provides a compliance test suite, called NPLB
(No Platform Left Behind), that porters can use to gauge their progress.
Current State
All of the APIs that Cobalt defines are at least called by NPLB, and most of
those APIs are verified in one way or another. The APIs that are most likely
to just be implemented by a single system call, such as the Starboard functions
defined in string.h and memory.h
are not exhaustively tested.
NPLB tests must work on all Starboard implementations, so they may make no
assumptions about platform-specific details. Rather, they attempt to define
a living contract for the APIs on all platforms.
Test Organization
NPLB tests can be found in the starboard/nplb/ directory and are broken
out into files by Starboard module and function:
starboard/nplb/<module>_<function>_test.cc
Although each test may incidentally test other functions, there is an attempt
to keep things as self-contained as possible within a function and module.
At the same time, the tests also aim to avoid avoid testing behavior that is
effectively tested as part of another test.
For example, the SbSocketSendTo and SbSocketReceiveFrom are tested
together, ensuring that the API is self-consistent on both sides of a
connection. Therefore, only one set of tests exist to cover those use cases,
in starboard/nplb/socket_receive_from_test.cc.
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Last updated 2023-12-12 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-12-12 UTC."],[[["Starboard simplifies porting with its compliance test suite, NPLB (No Platform Left Behind), allowing developers to track progress."],["NPLB tests call all Cobalt-defined APIs and verify most, focusing on functionalities beyond single system calls for thorough evaluation."],["Built for universal compatibility, NPLB tests avoid platform-specific assumptions and establish a comprehensive API contract across platforms."],["Tests reside in `starboard/nplb/`, organized by module and function to maintain modularity and minimize redundancy while ensuring comprehensive coverage."],["Certain tests, like `SbSocketSendTo` and `SbSocketReceiveFrom`, are integrated to assess API consistency and avoid unnecessary duplication."]]],["Starboard offers NPLB, a compliance test suite, to simplify the porting process. NPLB tests call and verify most Cobalt-defined APIs, excluding extensively tested single system call APIs like those in `string.h` and `memory.h`. Located in `starboard/nplb/`, tests are organized by module and function, maintaining self-containment. Tests avoid redundant coverage, with related functions like `SbSocketSendTo` and `SbSocketReceiveFrom` tested together to ensure API consistency. NPLB creates a contract for all platform APIs.\n"]]
