diff --git a/test/test_2d.jl b/test/test_2d.jl
index 33c5570..4762d4d 100644
--- a/test/test_2d.jl
+++ b/test/test_2d.jl
@@ -3,18 +3,20 @@ module Test2D
 using Test
 using Trixi2Vtk
 
+include("test_trixi2vtk.jl")
+
 # Start with a clean environment: remove Trixi output directory if it exists
 outdir = "out"
 isdir(outdir) && rm(outdir, recursive=true)
 
 
 @testset "2D" begin
-  run_trixi("2d/parameters.toml", n_steps_max=1)
+  run_trixi("parameters.toml", n_steps_max=1)
 
   @testset "uniform mesh" begin
-    test_trixi2vtk("solution_000000.h5", outdir,
-        hashes=[("solution_000000.vtu", "56ba70356fd6761432cd43d807c91961b3e7832e"),
-                ("solution_000000_celldata.vtu", "318de9b537e9724c190c4499e4cf8dca50ffff14")])
+    test_trixi2vtk_run("solution_000000.h5", outdir,
+        hashes=[("solution_000000.vtu", "1ec2c93c0c9c4f4992dea54afaf2a348ece0160e"),
+                ("solution_000000_celldata.vtu", "e396c3ba63276347966d4264cf0f52d592221830")])
   end
 end
 
diff --git a/test/test_trixi2vtk.jl b/test/test_trixi2vtk.jl
index b90420f..531a98a 100644
--- a/test/test_trixi2vtk.jl
+++ b/test/test_trixi2vtk.jl
@@ -7,26 +7,26 @@ using Trixi2Vtk
 const EXAMPLES_DIR = joinpath(pathof(Trixi) |> dirname |> dirname, "examples")
 
 
-function run_trixi(parameters_file, parameters...)
+function run_trixi(parameters_file; parameters...)
   @test_nowarn Trixi.run(joinpath(EXAMPLES_DIR, parameters_file); parameters...)
 end
 
 
 function sha1file(filename)
   open(filename) do f
-    hash = bytes2hex(sha1(f))
+    bytes2hex(sha1(f))
   end
-
-  return hash
 end
 
 
 function test_trixi2vtk_run(filenames, outdir; hashes=nothing, kwargs...)
-  @test_nowarn Trixi2Vtk.run(filenames, output_directory=outdir, kwargs...)
+  @test_nowarn Trixi2Vtk.run(filename=joinpath(outdir, filenames),
+                             output_directory=outdir, kwargs...)
 
   if !isnothing(hashes)
-    for filename, hash in hashes
-      @test hash == sha1file(joinpath(outdir, filename))
+    for (filename, hash_expected) in hashes
+      hash_measured = sha1file(joinpath(outdir, filename))
+      @test hash_expected == hash_measured
     end
   end
 end