diff --git a/.JuliaFormatter.toml b/.JuliaFormatter.toml
new file mode 100644
index 0000000..323237b
--- /dev/null
+++ b/.JuliaFormatter.toml
@@ -0,0 +1 @@
+style = "blue"
diff --git a/test/robust_pmap.jl b/test/robust_pmap.jl
index 501618b..9b1f125 100644
--- a/test/robust_pmap.jl
+++ b/test/robust_pmap.jl
@@ -10,25 +10,35 @@
                 i += 1
                 throw(err)
             end
-            isodd(x)
+            return isodd(x)
         end
         return throw_isodd
     end
 
     # Check other errors don't retry
-    throw_isodd = make_throw_isodd(ErrorException("Error"))
-    @test_throws ErrorException robust_pmap(throw_isodd, input)
+    throw_isodd = make_throw_isodd(ErrorException("Error123"))
+    if VERSION < v"1.8-"
+        @test_throws ErrorException robust_pmap(throw_isodd, input)
+    else
+        @test_throws "Error123" robust_pmap(throw_isodd, input)
+    end
 
     # Check ProcessExitedException is retried
     throw_isodd = make_throw_isodd(ProcessExitedException())
     @test robust_pmap(throw_isodd, input) == expected
     # Check retries are logged
     throw_isodd = make_throw_isodd(ProcessExitedException())
-    @test_log LOGGER "info" ("Retrying", "ProcessExitedException") robust_pmap(throw_isodd, input)
+    @test_log LOGGER "info" ("Retrying", "ProcessExitedException") robust_pmap(
+        throw_isodd, input
+    )
     # Check with lower number of retrys
     throw_isodd = make_throw_isodd(ProcessExitedException())
-    @test_throws ProcessExitedException robust_pmap(throw_isodd, input, num_retries=1)
+    if VERSION < v"1.8-"
+        @test_throws ProcessExitedException robust_pmap(throw_isodd, input, num_retries=1)
 
+    else
+        @test_throws "ProcessExitedException" robust_pmap(throw_isodd, input, num_retries=1)
+    end
     # ArgumentErrors with this message should be retried
     throw_isodd = make_throw_isodd(ArgumentError("stream is closed or unusable"))
     @test robust_pmap(throw_isodd, input) == expected
@@ -37,14 +47,29 @@
     @test_log LOGGER "info" ("Retrying", "ArgumentError") robust_pmap(throw_isodd, input)
     # Check with lower number of retrys
     throw_isodd = make_throw_isodd(ArgumentError("stream is closed or unusable"))
-    @test_throws ArgumentError robust_pmap(throw_isodd, input, num_retries=1)
+    if VERSION < v"1.8-"
+        @test_throws ArgumentError robust_pmap(throw_isodd, input, num_retries=1)
+    else
+        @test_throws "stream is closed or unusable" robust_pmap(
+            throw_isodd, input, num_retries=1
+        )
+    end
 
     # Other ArgumentErrors should not be retried
     throw_isodd = make_throw_isodd(ArgumentError("stream is open but other stuff is wrong"))
-    @test_throws ArgumentError robust_pmap(throw_isodd, input)
+    if VERSION < v"1.8-"
+        @test_throws ArgumentError robust_pmap(throw_isodd, input)
+    else
+        @test_throws "stream is open but other stuff is wrong" robust_pmap(
+            throw_isodd, input
+        )
+    end
     # No retries should mean no log of retries
     throw_isodd = make_throw_isodd(ArgumentError("stream is open but other stuff is wrong"))
-    @test_nolog LOGGER "info" "Retrying" try robust_pmap(throw_isodd, input) catch end
+    @test_nolog LOGGER "info" "Retrying" try
+        robust_pmap(throw_isodd, input)
+    catch
+    end
 
     # Check IOError is retried
     throw_isodd = make_throw_isodd(Base.IOError("msg", 1))
@@ -54,5 +79,9 @@
     @test_log LOGGER "info" ("Retrying", "IOError") robust_pmap(throw_isodd, input)
     # Check with lower number of retrys
     throw_isodd = make_throw_isodd(Base.IOError("msg", 1))
-    @test_throws Base.IOError robust_pmap(throw_isodd, input, num_retries=1)
+    if VERSION < v"1.8-"
+        @test_throws Base.IOError robust_pmap(throw_isodd, input, num_retries=1)
+    else
+        @test_throws "msg" robust_pmap(throw_isodd, input, num_retries=1)
+    end
 end