diff --git a/tests/testthat/test-try.R b/tests/testthat/test-try.R
new file mode 100644
index 0000000..7b4574a
--- /dev/null
+++ b/tests/testthat/test-try.R
@@ -0,0 +1,148 @@
+
+
+# --------------------------------------------------------------------------
+# Setup test environment & data
+# --------------------------------------------------------------------------
+
+# -- create testdata folder
+testdata_path <- file.path(system.file("tests", "testthat", package = "kitems"), "testdata")
+dir.create(testdata_path)
+
+
+test_path = list(data = testdata_path,
+                 resource = testdata_path)
+
+
+# -- module id
+module_id <- "data"
+
+# -- declare communication object
+r <- reactiveValues()
+
+
+# -- data model
+
+# -- declare colClasses
+colClasses <- c(id = "double",
+                date = "POSIXct",
+                name = "character",
+                quantity = "integer",
+                total = "numeric",
+                isvalid = "logical")
+
+# -- declare default.val
+default_val <- c("name" = "fruit", "isvalid" = TRUE)
+
+# -- declare default.fun
+default_fun <- c("id" = "ktools::getTimestamp", "date" = "Sys.Date")
+
+# -- declare filter
+filter <- c("id")
+
+# -- declare filter
+skip <- c("isvalid")
+
+# -- build data model
+dm <- data_model(colClasses = colClasses, default.val = default_val, default.fun = default_fun, filter = filter, skip = skip)
+
+# -- save data model
+dm_url <- file.path(testdata_path, paste0(dm_name(module_id), ".rds"))
+saveRDS(dm, file = dm_url)
+
+
+# -- items
+
+items <- item_create(list(id = NA, date = NA, name = "Apple", quantity = 1, total = 12.5, isvalid = TRUE), dm)
+new_item <- item_create(list(id = NA, date = NA, name = "Banana", quantity = 12, total = 106.3, isvalid = FALSE), dm)
+items <- item_add(items, new_item)
+new_item <- item_create(list(id = NA, date = NA, name = "Mango", quantity = 3, total = 45.7, isvalid = TRUE), dm)
+items <- item_add(items, new_item)
+new_item <- item_create(list(id = NA, date = NA, name = "Orange", quantity = 7, total = 17.5, isvalid = FALSE), dm)
+items <- item_add(items, new_item)
+
+item_save(items, file = "my_data.csv", path = testdata_path)
+
+new_item <- item_create(list(id = NA, date = NA, name = "Raspberry", quantity = 34, total = 86.4, isvalid = TRUE), dm)
+update_item <- item_create(list(id = NA, date = NA, name = "Apple update", quantity = 100, total = 0.1, isvalid = FALSE), dm)
+
+test_that("kitemsManager_Server works", {
+
+  # -- declare arguments
+  params <- list(id = module_id,
+                 r = r,
+                 file = "my_data.csv",
+                 path = test_path,
+                 data.model = dm,
+                 create = FALSE,
+                 autosave = TRUE)
+
+  # -- module server call
+  testServer(kitemsManager_Server, args = params, {
+
+    # -- test output: date_slider
+    #expect_snapshot(output$date_slider)
+
+    # --------------------------------------------------------------------------
+    # Data model
+    # --------------------------------------------------------------------------
+
+    r_data_model <- dm_name(module_id)
+    x <- r[[r_data_model]]()
+
+    # -- test class
+    expect_s3_class(x, "data.frame")
+
+    # -- test dim
+    expect_equal(dim(x), c(6,6))
+
+
+    # --------------------------------------------------------------------------
+    # Items
+    # --------------------------------------------------------------------------
+
+    r_items <- items_name(module_id)
+    x <- r[[r_items]]()
+
+    # -- test class
+    expect_s3_class(x, "data.frame")
+
+    # -- test dim
+    expect_equal(dim(x), c(4, 6))
+
+
+    # --------------------------------------------------------------------------
+    # Prepare
+    # --------------------------------------------------------------------------
+
+    session$flushReact()
+
+
+    # --------------------------------------------------------------------------
+    # Trigger new
+    # --------------------------------------------------------------------------
+
+    # -- trigger call
+    r_trigger_add <- trigger_add_name(module_id)
+    r[[r_trigger_add]](new_item)
+
+    # -- flush reactive values
+    session$flushReact()
+
+    # -- check
+    x <- r[[r_items]]()
+
+    # -- test class
+    expect_s3_class(x, "data.frame")
+
+    # -- test dim
+    expect_equal(dim(x), c(5, 6))
+
+    # -- test id
+    expect_true(new_item$id %in% x$id)
+
+
+
+  })
+
+
+})