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634b1c7c3c
* Don't kill the session when a debounced/throttled reactive expr errors Fixes #3581 * Update NEWS with PR number Co-authored-by: Carson Sievert <cpsievert1@gmail.com>
41 lines
945 B
R
41 lines
945 B
R
test_that("can access reactive values directly", {
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reactiveConsole(TRUE)
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on.exit(reactiveConsole(FALSE))
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x1 <- reactiveVal(1)
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x1(2)
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expect_equal(x1(), 2)
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x2 <- reactiveValues(a = 1)
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x2$a <- 2
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expect_equal(x2$a, 2)
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y <- reactive(x1() + x2$a)
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expect_equal(y(), 4)
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})
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test_that("errors in throttled/debounced reactives are catchable", {
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reactiveConsole(TRUE)
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on.exit(reactiveConsole(FALSE))
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# In Shiny 1.7 and earlier, if a throttled/debounced reactive threw an error,
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# it would cause internal observers used by the implementations of
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# debounce/throttle to error, which would kill the session. The correct
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# behavior is to only expose the error to consumers of the throttled/debounced
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# reactive.
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r <- reactive({
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stop("boom")
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})
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rd <- r %>% debounce(1000)
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rt <- r %>% throttle(1000)
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observe({
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try(rd(), silent = TRUE)
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try(rt(), silent = TRUE)
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})
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expect_silent(flushReact())
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})
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