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[SPARK-20571][SPARKR][SS] Flaky Structured Streaming tests #17857

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[SPARK-20571][SPARKR][SS] Flaky Structured Streaming tests #17857

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4 changes: 4 additions & 0 deletions R/pkg/inst/tests/testthat/test_streaming.R
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Original file line number Diff line number Diff line change
Expand Up @@ -55,10 +55,12 @@ test_that("read.stream, write.stream, awaitTermination, stopQuery", {
q <- write.stream(counts, "memory", queryName = "people", outputMode = "complete")

expect_false(awaitTermination(q, 5 * 1000))
callJMethod(q@ssq, "processAllAvailable")
expect_equal(head(sql("SELECT count(*) FROM people"))[[1]], 3)

writeLines(mockLinesNa, jsonPathNa)
awaitTermination(q, 5 * 1000)
callJMethod(q@ssq, "processAllAvailable")
expect_equal(head(sql("SELECT count(*) FROM people"))[[1]], 6)

stopQuery(q)
Expand All @@ -75,6 +77,7 @@ test_that("print from explain, lastProgress, status, isActive", {
q <- write.stream(counts, "memory", queryName = "people2", outputMode = "complete")

awaitTermination(q, 5 * 1000)
callJMethod(q@ssq, "processAllAvailable")

expect_equal(capture.output(explain(q))[[1]], "== Physical Plan ==")
expect_true(any(grepl("\"description\" : \"MemorySink\"", capture.output(lastProgress(q)))))
Expand All @@ -99,6 +102,7 @@ test_that("Stream other format", {
q <- write.stream(counts, "memory", queryName = "people3", outputMode = "complete")

expect_false(awaitTermination(q, 5 * 1000))
callJMethod(q@ssq, "processAllAvailable")
expect_equal(head(sql("SELECT count(*) FROM people3"))[[1]], 3)

expect_equal(queryName(q), "people3")
Expand Down