Fix tests on Mail 2.7.1

Up to `2.7.0`, encoding was chosen using `Mail::Encodings::TransferEncoding.negotiate`,
and base64 encoding was used.
In `2.7.1`, when `transfer_encoding` is not specified, the encoding
of the message is respected.
Related to: https://github.com/mikel/mail/commit/dead487e02f592d9058fd07deedcde39b569d18d

However, what chosen for transfer encoding is not essential in these tests.
To test more accurately, confirm that the decoded body instead.

1 files changed, 4 insertions, 4 deletions

diff --git a/actionmailer/test/base_test.rb b/actionmailer/test/base_test.rb
index 7a1a505398..cbbee9fae8 100644
--- a/actionmailer/test/base_test.rb
+++ b/actionmailer/test/base_test.rb
@@ -152,9 +152,9 @@ class BaseTest < ActiveSupport::TestCase
     assert_equal(2, email.parts.length)
     assert_equal("multipart/mixed", email.mime_type)
     assert_equal("text/html", email.parts[0].mime_type)
-    assert_equal("Attachment with content", email.parts[0].body.encoded)
+    assert_equal("Attachment with content", email.parts[0].decoded)
     assert_equal("application/pdf", email.parts[1].mime_type)
-    assert_equal("VGhpcyBpcyB0ZXN0IEZpbGUgY29udGVudA==\r\n", email.parts[1].body.encoded)
+    assert_equal("This is test File content", email.parts[1].decoded)
   end
 
   test "adds the given :body as part" do
@@ -162,9 +162,9 @@ class BaseTest < ActiveSupport::TestCase
     assert_equal(2, email.parts.length)
     assert_equal("multipart/mixed", email.mime_type)
     assert_equal("text/plain", email.parts[0].mime_type)
-    assert_equal("I'm the eggman", email.parts[0].body.encoded)
+    assert_equal("I'm the eggman", email.parts[0].decoded)
     assert_equal("application/pdf", email.parts[1].mime_type)
-    assert_equal("VGhpcyBpcyB0ZXN0IEZpbGUgY29udGVudA==\r\n", email.parts[1].body.encoded)
+    assert_equal("This is test File content", email.parts[1].decoded)
   end
 
   test "can embed an inline attachment" do