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tests/julia: add interop and wire compatibility tests #555

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2 changes: 2 additions & 0 deletions tests/julia/runtests.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -8,4 +8,6 @@ using .Concore
include("test_config.jl")
include("test_sync.jl")
include("test_protocol.jl")
include("test_wire_compat.jl")
include("test_interop.jl")
end
210 changes: 210 additions & 0 deletions tests/julia/test_interop.jl
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# File-backend round trips against Python and C++ bindings.
@testset "Cross-language interop" begin

repo_root = normpath(joinpath(@__DIR__, "..", ".."))
repo_include = replace(repo_root, "\\" => "/")
python_path(path) = replace(path, "\\" => "/")

function reset_interop_state!()
Concore.simtime = 0.0
Concore.delay = 0.0
Concore.s = ""
Concore.olds = ""
Concore.retrycount = 0
end

function run_cmd(cmd; dir=repo_root)
try
return 0, strip(read(Cmd(cmd; dir=dir), String)), ""
catch err
return 1, "", sprint(showerror, err)
end
end

@testset "Python writes, Julia reads" begin
python = Sys.which("python")
python === nothing && (python = Sys.which("python3"))

if python === nothing
@test_skip "python executable not found"
else
mktempdir() do dir
mkpath(joinpath(dir, "out1"))

script = """
import sys
sys.path.insert(0, "$(python_path(repo_root))")
import concore
concore.delay = 0
concore.simtime = 5.0
concore.outpath = "$(python_path(joinpath(dir, "out")))"
concore.write(1, "signal", [42.0, 3.0])
"""

code, _out, err = run_cmd(`$python -c $script`)
@test code == 0
err != "" && @info err

old_inpath = Concore.inpath
try
reset_interop_state!()
Concore.inpath = joinpath(dir, "out")
result = Concore.concore_read(1, "signal", "[0.0, 0.0, 0.0]")

@test result == [42.0, 3.0]
@test Concore.simtime == 5.0
@test read(joinpath(dir, "out1", "signal"), String) == "[5.0, 42.0, 3.0]"
finally
Concore.inpath = old_inpath
reset_interop_state!()
end
end
end
end

@testset "Julia writes, Python reads" begin
python = Sys.which("python")
python === nothing && (python = Sys.which("python3"))

if python === nothing
@test_skip "python executable not found"
else
mktempdir() do dir
old_outpath = Concore.outpath
try
reset_interop_state!()
Concore.outpath = joinpath(dir, "out")
Concore.simtime = 7.0
Concore.concore_write(1, "signal", [11.0, 12.5])

script = """
import sys
sys.path.insert(0, "$(python_path(repo_root))")
import concore
concore.delay = 0
concore.simtime = 0.0
concore.inpath = "$(python_path(joinpath(dir, "out")))"
value = concore.read(1, "signal", "[0.0, 0.0, 0.0]")
assert value == [11.0, 12.5], value
assert concore.simtime == 7.0, concore.simtime
"""

code, _out, err = run_cmd(`$python -c $script`)
@test code == 0
err != "" && @info err
finally
Concore.outpath = old_outpath
reset_interop_state!()
end
end
end
end

function cxx_compiler()
for name in ("g++", "clang++")
compiler = Sys.which(name)
compiler !== nothing && return compiler
end
return nothing
end

@testset "C++ writes, Julia reads" begin
compiler = cxx_compiler()

if compiler === nothing
@test_skip "C++ compiler not found"
else
mktempdir() do dir
source = joinpath(dir, "write_signal.cpp")
exe = joinpath(dir, Sys.iswindows() ? "write_signal.exe" : "write_signal")
write(source, """
#include <vector>
#include "$repo_include/concore.hpp"

int main() {
Concore c;
c.delay = 0;
c.simtime = 9.0;
c.write_FM(1, "signal", std::vector<double>{13.0, 14.0});
return 0;
}
""")
mkpath(joinpath(dir, "out1"))

code, _out, err = run_cmd(`$compiler -std=c++11 -I$repo_root -o $exe $source`; dir=dir)
@test code == 0
err != "" && @info err

code, _out, err = run_cmd(`$exe`; dir=dir)
@test code == 0
err != "" && @info err

old_inpath = Concore.inpath
try
reset_interop_state!()
Concore.inpath = joinpath(dir, "out")
result = Concore.concore_read(1, "signal", "[0.0, 0.0, 0.0]")

@test result == [13.0, 14.0]
@test Concore.simtime == 9.0
finally
Concore.inpath = old_inpath
reset_interop_state!()
end
end
end
end

@testset "Julia writes, C++ reads" begin
compiler = cxx_compiler()

if compiler === nothing
@test_skip "C++ compiler not found"
else
mktempdir() do dir
old_outpath = Concore.outpath
try
reset_interop_state!()
Concore.outpath = joinpath(dir, "out")
Concore.simtime = 10.0
Concore.concore_write(1, "signal", [21.0, 22.0])
mkpath(joinpath(dir, "in1"))
cp(joinpath(dir, "out1", "signal"), joinpath(dir, "in1", "signal"))
finally
Concore.outpath = old_outpath
end

source = joinpath(dir, "read_signal.cpp")
exe = joinpath(dir, Sys.iswindows() ? "read_signal.exe" : "read_signal")
write(source, """
#include <cmath>
#include <vector>
#include "$repo_include/concore.hpp"

int main() {
Concore c;
c.delay = 0;
c.simtime = 0.0;
std::vector<double> value = c.read_FM(1, "signal", "[0.0, 0.0, 0.0]");
if (value.size() != 2) return 1;
if (std::fabs(value[0] - 21.0) > 1e-9) return 2;
if (std::fabs(value[1] - 22.0) > 1e-9) return 3;
if (std::fabs(c.simtime - 10.0) > 1e-9) return 4;
return 0;
}
""")

code, _out, err = run_cmd(`$compiler -std=c++11 -I$repo_root -o $exe $source`; dir=dir)
@test code == 0
err != "" && @info err

code, _out, err = run_cmd(`$exe`; dir=dir)
@test code == 0
err != "" && @info err

reset_interop_state!()
end
end
end

end
70 changes: 70 additions & 0 deletions tests/julia/test_wire_compat.jl
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# Exact wire strings that must stay readable across Concore runtimes.
@testset "Wire compatibility" begin

function reset_wire_state!()
Concore.simtime = 0.0
Concore.delay = 0.0
Concore.s = ""
Concore.olds = ""
Concore.retrycount = 0
end

@testset "Julia writes Python-style wire strings" begin
cases = [
(0.0, [0.0], "[0.0, 0.0]"),
(0.0, [1.0, 2.0, 3.0], "[0.0, 1.0, 2.0, 3.0]"),
(5.0, [42.0, 3.0], "[5.0, 42.0, 3.0]"),
(2.0, [3.14, -1.5, 0.0], "[2.0, 3.14, -1.5, 0.0]"),
]

mktempdir() do dir
old_outpath = Concore.outpath
Concore.outpath = joinpath(dir, "out")

try
for (simtime, values, expected) in cases
reset_wire_state!()
Concore.simtime = simtime
Concore.concore_write(1, "wire", values)
content = read(joinpath(dir, "out1", "wire"), String)

@test content == expected
@test !occursin('\n', content)
@test !endswith(content, ",]")
@test !endswith(content, ", ]")
end
finally
Concore.outpath = old_outpath
reset_wire_state!()
end
end
end

@testset "Julia parses Python and C++ wire strings" begin
@test Concore.safe_parse_list("[5.0, 42.0, 3.0]") == [5.0, 42.0, 3.0]
@test Concore.safe_parse_list("[5,42,3]") == [5.0, 42.0, 3.0]
@test Concore.safe_parse_list("[np.float64(5.0), np.float64(42.0)]") == [5.0, 42.0]
@test Concore.safe_parse_list("np.array([1.0, 2.0, 3.0])") == [1.0, 2.0, 3.0]
end

@testset "delta affects written simtime only" begin
mktempdir() do dir
old_outpath = Concore.outpath
Concore.outpath = joinpath(dir, "out")

try
reset_wire_state!()
Concore.simtime = 5.0
Concore.concore_write(1, "ym", [3.01]; delta=1)

content = read(joinpath(dir, "out1", "ym"), String)
@test content == "[6.0, 3.01]"
@test Concore.simtime == 5.0
finally
Concore.outpath = old_outpath
reset_wire_state!()
end
end
end

end
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