Updated expected error message to be compatable with upcoming testthat version

Author: advieser

tests/testthat/test_Graph.R

@@ -225,7 +225,8 @@ test_that("assert_graph test", {
 
   gr2 = assert_graph(gr)
 
-  expect_error(expect_deep_clone(gr, gr2), class = "error", regexp = "addresses differ.*isn't true|addresses differ.*is not TRUE")
+  expect_error(expect_deep_clone(gr, gr2), class = "error",
+    regexp = "Expected.*addresses differ.*to be TRUE|addresses differ.*isn't true|addresses differ.*is not TRUE")
 
   gr2 = as_graph(gr, clone = TRUE)
 
@@ -237,7 +238,8 @@ test_that("assert_graph test", {
 
   po = PipeOpNOP$new()
 
-  expect_error(expect_deep_clone(po, po), class = "error", regexp = "addresses differ.*isn't true|addresses differ.*is not TRUE")
+  expect_error(expect_deep_clone(po, po), class = "error",
+    regexp = "Expected.*addresses differ.*to be TRUE|addresses differ.*isn't true|addresses differ.*is not TRUE")
 
   po2 = as_graph(po, clone = TRUE)$pipeops[[1]]