diff --git a/src/variables.jl b/src/variables.jl
index bdaf617..1f25e93 100644
--- a/src/variables.jl
+++ b/src/variables.jl
@@ -157,9 +157,7 @@ function Variable(ds::GRIBDataset, key)
 
         for d in dims
             if !_is_length_consistent(d, dsdims)
-                @warn "The length of dimension $(dimname(d)) in variable $key is different
-                from the corresponding dimension in the dataset. This could lead to unexpected
-                behaviour."
+                @warn "The length of dimension $(dimname(d)) in variable $key is different from the corresponding dimension in the dataset. This could lead to unexpected behaviour."
             end
         end
 
@@ -171,7 +169,7 @@ function Variable(ds::GRIBDataset, key)
 
         Variable(ds, key, _filter_horizontal_dims(ds.dims), values, coordinate_attributes(key))
     else
-        error("The key `$key` was been found in the dataset. Available keys: $(keys(ds))")
+        error("The key `$key` was not found in the dataset. Available keys: $(keys(ds))")
     end
 end
 
diff --git a/test/dataset.jl b/test/dataset.jl
index 03b5498..dab7af6 100644
--- a/test/dataset.jl
+++ b/test/dataset.jl
@@ -122,9 +122,9 @@ using GRIBDatasets: CDM
         u = ds2["u"]
         @test u[:,:, 1, 1] isa AbstractArray{<:Any, 2}
         @test_throws BoundsError u[:,:,1,2]
-        u10 = ds2["u10"]
+        u10 = ds2["avg_10u"]
         @test GDS._dim_values(GDS._get_dim(u10, "heightAboveGround_2")) == [10]
-        t2m = ds2["t2m"]
+        t2m = ds2["mean2t"]
         @test GDS._dim_values(GDS._get_dim(t2m, "heightAboveGround")) == [2]
     end
 
@@ -187,7 +187,7 @@ using GRIBDatasets: CDM
     end
 end
 
-@testset "test all files" begin
+@testset "open all files" begin
     for testfile in test_files
         println("Testing: ", testfile)
         index = FileIndex(testfile)
diff --git a/test/dimensions.jl b/test/dimensions.jl
index 7fa11cc..1a75534 100644
--- a/test/dimensions.jl
+++ b/test/dimensions.jl
@@ -79,9 +79,9 @@ using Test
 
         @test keys(vertdims) == ["hybrid", "heightAboveGround", "heightAboveGround_2"]
 
-        u10 = filter_messages(index, cfVarName = "u10")
+        u10 = filter_messages(index, cfVarName = "avg_10u")
         indices = messages_indices(u10, _alldims(u10))
 
         @test indices[1] == [1, 1]
     end
-end
\ No newline at end of file
+end