Bug 341 - unit tests needed for soc.fu.compunits (shared with soc.fu.*/test_pipe_caller.py)
Summary: unit tests needed for soc.fu.compunits (shared with soc.fu.*/test_pipe_caller...
Alias: None
Product: Libre-SOC's first SoC
Classification: Unclassified
Component: Source Code (show other bugs)
Version: unspecified
Hardware: PC Linux
: --- enhancement
Assignee: Luke Kenneth Casson Leighton
Depends on: 318 305
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Reported: 2020-05-23 23:50 BST by Luke Kenneth Casson Leighton
Modified: 2020-06-30 17:00 BST (History)
1 user (show)

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Description Luke Kenneth Casson Leighton 2020-05-23 23:50:53 BST
we need some test infrastructure that does exactly the same as
every single one of the test_pipe_caller.py unit tests, except
using ALUFunctionUnit, CRFunctionUnit etc. instead of
ALUBasePipe+ALUPipeSpec, CRBasePipe+CRPipeSpec etc.

the only pieces of code that need to change to achieve this is
how the inputs are set up, and the outputs obtained.

this basically means generalising each test_pipe_caller.py
TestRunner.run_all().process() function, so that instead
of explicitly targetting the alu instance:

                    vld = yield alu.n.valid_o
                    while not vld:
                        vld = yield alu.n.valid_o
                    alu_out = yield alu.n.data_o.o

instead it allows a parameterised selection of  the MultiCompUnit API /
data-synchronisation method (see experiment/compalu_multi.py tests):

    yield dut.issue_i.eq(1)
    yield dut.issue_i.eq(0)
    yield dut.rd.go.eq(0b11)
    while True:
        rd_rel_o = yield dut.rd.rel
        print ("rd_rel", rd_rel_o)
        if rd_rel_o:

(actually, this ties in with Cesar's task, somewhat).