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test_that("writing to extra connection", {
skip_on_cran()
msg <- "foobar"
cmd <- c(get_tool("px"), "echo", "3", "1", nchar(msg))
pipe <- conn_create_pipepair(nonblocking = c(FALSE, FALSE))
expect_silent(
p <- process$new(cmd[1], cmd[-1],
stdout = "|", stderr = "|", connections = list(pipe[[1]])
)
)
close(pipe[[1]])
on.exit(p$kill(), add = TRUE)
conn_write(pipe[[2]], msg)
p$poll_io(-1)
expect_equal(p$read_all_output_lines(), msg)
expect_equal(p$read_all_error_lines(), character())
close(pipe[[2]])
})
test_that("reading from extra connection", {
skip_on_cran()
cmd <- c(
get_tool("px"), "sleep", "0.5", "write", "3", "foobar\r\n", "out", "ok")
pipe <- conn_create_pipepair()
expect_silent(
p <- process$new(cmd[1], cmd[-1], stdout = "|", stderr = "|",
connections = list(pipe[[2]])
)
)
close(pipe[[2]])
on.exit(p$kill(), add = TRUE)
## Nothing to read yet
expect_equal(conn_read_lines(pipe[[1]]), character())
## Wait until there is output
ready <- poll(list(pipe[[1]]), 5000)[[1]]
expect_equal(ready, "ready")
expect_equal(conn_read_lines(pipe[[1]]), "foobar")
expect_equal(p$read_all_output_lines(), "ok")
expect_equal(p$read_all_error_lines(), character())
close(pipe[[1]])
})
test_that("reading and writing to extra connection", {
skip_on_cran()
msg <- "foobar\n"
cmd <- c(get_tool("px"), "echo", "3", "4", nchar(msg), "outln", "ok")
pipe1 <- conn_create_pipepair(nonblocking = c(FALSE, FALSE))
pipe2 <- conn_create_pipepair()
expect_silent(
p <- process$new(cmd[1], cmd[-1], stdout = "|", stderr = "|",
connections = list(pipe1[[1]], pipe2[[2]])
)
)
close(pipe1[[1]])
close(pipe2[[2]])
on.exit(p$kill(), add = TRUE)
conn_write(pipe1[[2]], msg)
p$poll_io(-1)
expect_equal(conn_read_chars(pipe2[[1]]), msg)
expect_equal(p$read_output_lines(), "ok")
close(pipe1[[2]])
close(pipe2[[1]])
})
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