diff --git a/modules/data.atmosphere/inst/integrationTests/test.download.AmerifluxLBL.R b/modules/data.atmosphere/inst/integrationTests/test.download.AmerifluxLBL.R
new file mode 100644
index 00000000000..e46d1d4830f
--- /dev/null
+++ b/modules/data.atmosphere/inst/integrationTests/test.download.AmerifluxLBL.R
@@ -0,0 +1,60 @@
+library(testthat)
+
+test_download_AmerifluxLBL <- function(start_date, end_date, sitename, lat.in, lon.in) {
+  # putting logger to debug mode
+  PEcAn.logger::logger.setUseConsole(TRUE, FALSE)
+  on.exit(PEcAn.logger::logger.setUseConsole(TRUE, TRUE), add = TRUE)
+  PEcAn.logger::logger.setLevel("DEBUG")
+
+  # mocking functions
+  mockery::stub(PEcAn.DB::convert_input, 'dbfile.input.check', data.frame())
+  mockery::stub(PEcAn.DB::convert_input, 'db.query', data.frame(id = 1))
+
+  withr::with_dir(tempdir(), {
+    tmpdir <- getwd()
+    # calling download function
+    res <- PEcAn.DB::convert_input(
+      input.id = NA,
+      outfolder = tmpdir,
+      formatname = NULL,
+      mimetype = NULL,
+      site.id = 1,
+      start_date = start_date,
+      end_date = end_date,
+      pkg = 'PEcAn.data.atmosphere',
+      fcn = 'download.AmerifluxLBL',
+      con = NULL,
+      host = data.frame(name = "localhost"),
+      browndog = NULL,
+      write = FALSE,
+      lat.in = lat.in,
+      lon.in = lon.in,
+      sitename = sitename
+    )
+  })
+  
+  # checking if the file is downloaded
+  test_that("Downloaded files are present at the desired location", {
+    expect_true(file.exists(paste0(tmpdir, "/AMF_US-Akn_BASE_HH_6-5.csv")))
+  })
+
+  test_that("Downloaded data files have the right format", {
+    firstline <- system(paste0("head -4 ", paste0(tmpdir, "/AMF_US-Akn_BASE_HH_6-5.csv")), intern = TRUE)
+    lastline <- system(paste0("tail -1 ", paste0(tmpdir, "/AMF_US-Akn_BASE_HH_6-5.csv")), intern = TRUE)
+    
+    # checking if first line of CSV has the sitename
+    expect_true(grepl(sitename, firstline[1]))
+    
+    # fourth and last row checked to contain non-alphabetical data since these are used to verify start and end dates
+    expect_false(grepl("[A-Za-z]", firstline[4]))
+    expect_false(grepl("[A-Za-z]", lastline[1]))
+  })
+}
+
+test_download_AmerifluxLBL(
+  start_date = "2011-01-01",
+  end_date = "2011-12-31",
+  sitename = 'US-Akn',
+  lat.in = 40,
+  lon.in = -88
+)
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