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Diffstat (limited to 't/t0052-simple-ipc.sh')
| -rwxr-xr-x | t/t0052-simple-ipc.sh | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/t/t0052-simple-ipc.sh b/t/t0052-simple-ipc.sh new file mode 100755 index 0000000..ff98be3 --- /dev/null +++ b/t/t0052-simple-ipc.sh @@ -0,0 +1,122 @@ +#!/bin/sh + +test_description='simple command server' + +. ./test-lib.sh + +test-tool simple-ipc SUPPORTS_SIMPLE_IPC || { + skip_all='simple IPC not supported on this platform' + test_done +} + +stop_simple_IPC_server () { + test-tool simple-ipc stop-daemon +} + +test_expect_success 'start simple command server' ' + test_atexit stop_simple_IPC_server && + test-tool simple-ipc start-daemon --threads=8 && + test-tool simple-ipc is-active +' + +test_expect_success 'simple command server' ' + test-tool simple-ipc send --token=ping >actual && + echo pong >expect && + test_cmp expect actual +' + +test_expect_success 'servers cannot share the same path' ' + test_must_fail test-tool simple-ipc run-daemon && + test-tool simple-ipc is-active +' + +test_expect_success 'big response' ' + test-tool simple-ipc send --token=big >actual && + test_line_count -ge 10000 actual && + grep -q "big: [0]*9999\$" actual +' + +test_expect_success 'chunk response' ' + test-tool simple-ipc send --token=chunk >actual && + test_line_count -ge 10000 actual && + grep -q "big: [0]*9999\$" actual +' + +test_expect_success 'slow response' ' + test-tool simple-ipc send --token=slow >actual && + test_line_count -ge 100 actual && + grep -q "big: [0]*99\$" actual +' + +# Send an IPC with n=100,000 bytes of ballast. This should be large enough +# to force both the kernel and the pkt-line layer to chunk the message to the +# daemon and for the daemon to receive it in chunks. +# +test_expect_success 'sendbytes' ' + test-tool simple-ipc sendbytes --bytecount=100000 --byte=A >actual && + grep "sent:A00100000 rcvd:A00100000" actual +' + +# Start a series of <threads> client threads that each make <batchsize> +# IPC requests to the server. Each (<threads> * <batchsize>) request +# will open a new connection to the server and randomly bind to a server +# thread. Each client thread exits after completing its batch. So the +# total number of live client threads will be smaller than the total. +# Each request will send a message containing at least <bytecount> bytes +# of ballast. (Responses are small.) +# +# The purpose here is to test threading in the server and responding to +# many concurrent client requests (regardless of whether they come from +# 1 client process or many). And to test that the server side of the +# named pipe/socket is stable. (On Windows this means that the server +# pipe is properly recycled.) +# +# On Windows it also lets us adjust the connection timeout in the +# `ipc_client_send_command()`. +# +# Note it is easy to drive the system into failure by requesting an +# insane number of threads on client or server and/or increasing the +# per-thread batchsize or the per-request bytecount (ballast). +# On Windows these failures look like "pipe is busy" errors. +# So I've chosen fairly conservative values for now. +# +# We expect output of the form "sent:<letter><length> ..." +# With terms (7, 19, 13) we expect: +# <letter> in [A-G] +# <length> in [19+0 .. 19+(13-1)] +# and (7 * 13) successful responses. +# +test_expect_success 'stress test threads' ' + test-tool simple-ipc multiple \ + --threads=7 \ + --bytecount=19 \ + --batchsize=13 \ + >actual && + test_line_count = 92 actual && + grep "good 91" actual && + grep "sent:A" <actual >actual_a && + cat >expect_a <<-EOF && + sent:A00000019 rcvd:A00000019 + sent:A00000020 rcvd:A00000020 + sent:A00000021 rcvd:A00000021 + sent:A00000022 rcvd:A00000022 + sent:A00000023 rcvd:A00000023 + sent:A00000024 rcvd:A00000024 + sent:A00000025 rcvd:A00000025 + sent:A00000026 rcvd:A00000026 + sent:A00000027 rcvd:A00000027 + sent:A00000028 rcvd:A00000028 + sent:A00000029 rcvd:A00000029 + sent:A00000030 rcvd:A00000030 + sent:A00000031 rcvd:A00000031 + EOF + test_cmp expect_a actual_a +' + +test_expect_success 'stop-daemon works' ' + test-tool simple-ipc stop-daemon && + test_must_fail test-tool simple-ipc is-active && + test_must_fail test-tool simple-ipc send --token=ping +' + +test_done |