test error_message for Import.

test/import_task_test.rb

@@ -2,6 +2,10 @@
 require "trailblazer/workflow/task/import" # FIXME.
 
 class ImportTaskTest < Minitest::Spec
+  after do
+    `rm /tmp/79d163.json`
+  end
+
   let(:api_key) { "tpka_909ae987_c834_43e4_9869_2eefd2aa9bcf" }
   let(:trailblazer_pro_host) { "https://testbackend-pro.trb.to" } # NOTE: it's a bit clumsy to share PRO testing knowledge across several gems, but this code belongs here.
 
@@ -18,7 +22,6 @@ class ImportTaskTest < Minitest::Spec
   #@ Uninitialized sigin
     initial_session = Trailblazer::Pro::Session::Uninitialized.new(trailblazer_pro_host: trailblazer_pro_host, api_key: api_key)
 
-    # 79d163 /tmp/79d163.json
     signal, (ctx, _) = Trailblazer::Developer.wtf?(Trailblazer::Workflow::Task::Import, [{
       session: initial_session,
       diagram_slug: "79d163",
@@ -27,6 +30,24 @@ class ImportTaskTest < Minitest::Spec
 
     assert_equal signal.to_h[:semantic], :success
     assert_equal File.read("/tmp/79d163.json").size, 4635
+  end
+
+  it "Import shows HTTP error" do
+  #@ Uninitialized sigin
+    initial_session = Trailblazer::Pro::Session::Uninitialized.new(trailblazer_pro_host: trailblazer_pro_host, api_key: "api_key-XXX")
+
+    signal = nil
     # output, _ = capture_io do
+      signal, (ctx, _) = Trailblazer::Developer.wtf?(Trailblazer::Workflow::Task::Import, [{
+        session: initial_session,
+        diagram_slug: "79d163",
+        target_filename: "/tmp/79d163.json",
+      }, {}])
+    # end
+
+    assert_equal signal.to_h[:semantic], :failure
+    assert_equal File.exist?("/tmp/79d163.json"), false
+    # assert_equal output.split("\n").last, %(asdf)
+    assert_equal ctx[:error_message], %(Custom token couldn't be retrieved. HTTP status: 401)
   end
 end