diff --git a/tests/testthat/test-bootstrap.R b/tests/testthat/test-bootstrap.R
index 50cdcfb..5267b1e 100644
--- a/tests/testthat/test-bootstrap.R
+++ b/tests/testthat/test-bootstrap.R
@@ -1,80 +1,96 @@
 test_that("Single task bootstrapping with 1 test case stopped with message", {
   dataTask1 <- cbind(task="T1",
                    rbind(
                      data.frame(algo="A1", value=0.8, case="C1"),
                      data.frame(algo="A2", value=0.6, case="C1")
                    ))
 
 
 challenge <- as.challenge(dataTask1,  algorithm="algo", case="case", value="value", smallBetter=FALSE)
 
 ranking <- challenge%>%aggregateThenRank(FUN=median, ties.method="min")
 
 set.seed(1)
 
 
 expect_error(rankingBootstrapped <- ranking%>%bootstrap(nboot=10),
              "Only 1 test case included. Bootstrapping with 1 test case not sensible.", fixed = TRUE)
 })
 
 
 test_that("Multi task bootstrapping, all tasks with 1 test case stopped with message", {
   dataTask1 <- cbind(task="T1",
                      rbind(
                        data.frame(algo="A1", value=0.8, case="C1"),
                        data.frame(algo="A2", value=0.6, case="C1")
                      ))
   dataTask2 <- cbind(task="T2",
                      rbind(
                        data.frame(algo="A1", value=0.2, case="C1"),
                        data.frame(algo="A2", value=0.3, case="C1")
                      ))
   dataTask3 <- cbind(task="T3",
                      rbind(
                        data.frame(algo="A1", value=0.1, case="C1"),
                        data.frame(algo="A2", value=0.8, case="C1")
                      ))
   
   data <- rbind(dataTask1, dataTask2, dataTask3)
   
   challenge <- as.challenge(data, by="task", algorithm="algo", case="case", value="value", smallBetter=FALSE)
   
   ranking <- challenge%>%aggregateThenRank(FUN=median, ties.method="min")
   
   set.seed(1)
   expect_error(rankingBootstrapped <- ranking%>%bootstrap(nboot=10),
                "All tasks only contained 1 test case. Bootstrapping with 1 test case not sensible.", fixed = TRUE)
 })
 
 
 test_that("Multi task bootstrapping, only one task with >1 test case continued with message", {
   dataTask1 <- cbind(task="T1",
                      rbind(
                        data.frame(algo="A1", value=0.8, case="C1"),
                        data.frame(algo="A2", value=0.6, case="C1")
                      ))
   dataTask2 <- cbind(task="T2",
                      rbind(
                        data.frame(algo="A1", value=0.2, case="C1"),
                        data.frame(algo="A2", value=0.3, case="C1"),
                        data.frame(algo="A1", value=0.2, case="C2"),
                        data.frame(algo="A2", value=0.3, case="C2")
                      ))
   dataTask3 <- cbind(task="T3",
                      rbind(
                        data.frame(algo="A1", value=0.1, case="C1"),
                        data.frame(algo="A2", value=0.8, case="C1")
                      ))
   
   data <- rbind(dataTask1, dataTask2, dataTask3)
   
   challenge <- as.challenge(data, by="task", algorithm="algo", case="case", value="value", smallBetter=FALSE)
   
   ranking <- challenge%>%aggregateThenRank(FUN=median, ties.method="min")
   
   set.seed(1)
   expect_message(rankingBootstrapped <- ranking%>%bootstrap(nboot=3),
                "Task(s) T1, T3 with only 1 test case excluded from bootstrapping.", fixed = TRUE)
 })
 
 
+test_that("two sequential bootstrappings yield same results", {
+  data <- read.csv(system.file("extdata", "data_matrix.csv", package="challengeR", mustWork=TRUE))
+
+  challenge <- as.challenge(data, by="task", algorithm="alg_name", case="case", value="value", smallBetter=FALSE)
+
+  ranking <- challenge%>%rankThenAggregate(FUN=mean, ties.method="min")
+
+  set.seed(1)
+  rankingBootstrapped1 <- ranking%>%bootstrap(nboot=10)
+
+  set.seed(1)
+  rankingBootstrapped2 <- ranking%>%bootstrap(nboot=10)
+
+  expect_equal(rankingBootstrapped1, rankingBootstrapped2)
+})
+