Fixes issue with ActiveStorage::FixtureSet.blob causing a TypeError

[jaywhy]

This PR fixes an issue where calling ActiveStorage::FixtureSet.blob will error with TypeError: no implicit conversion of nil into String because the blob method expects ActiveStorage::FixtureSet.file_fixture_path to be set.

This PR adds a default value to ActiveStorage::FixtureSet.file_fixture_path, fixing the issue. It checks to see if it is defined because this is a new feature of Rails 7.

More information can be found in #2637.
fixes #2637

[pirj]

Nice! Would it be possible to add a scenario to features/file_fixture.feature?

[jaywhy]

@pirj I've added a scenario covering the issue.

[pirj]

Some feature failed. Can you please have a look?

[jaywhy]

@pirj thanks for the heads up.

The test fails because ActiveStorage::FixtureSet is not defined in Rails 6. I put an if check around the actual code but didn't consider the test.

I added a check around the test. This should fix the issue.

[pirj]

Thank you!

[pirj]

It seems that RubyGems times out, and causes red ci.

[pirj]

I don't understand why it won't let me force push.

[pirj]

From 106cca999d2aa1afff5c478631045c35cf0380df Mon Sep 17 00:00:00 2001
From: Jason Yates <jason@jasonyates.me>
Date: Wed, 19 Apr 2023 14:27:26 -0400
Subject: [PATCH] fixup!

---
 features/file_fixture.feature      |  7 +++----
 features/support/rails_versions.rb | 15 +++++++++++++++
 2 files changed, 18 insertions(+), 4 deletions(-)
 create mode 100644 features/support/rails_versions.rb

diff --git features/file_fixture.feature features/file_fixture.feature
index 845c280c..c6a765a5 100644
--- features/file_fixture.feature
+++ features/file_fixture.feature
@@ -37,6 +37,7 @@ Feature: Using `file_fixture`
     When I run `rspec spec/lib/file_spec.rb`
     Then the examples should all pass
 
+  @rails_post_7
   Scenario: Creating a ActiveStorage::Blob from a file fixture
     Given a file named "spec/fixtures/files/sample.txt" with:
       """
@@ -48,11 +49,9 @@ Feature: Using `file_fixture`
 
       RSpec.describe "blob" do
         it "creates a blob from a sample file" do
-          if ::Rails::VERSION::STRING >= '7'
-            expect(ActiveStorage::FixtureSet.blob(filename: "sample.txt")).to include("sample.txt")
-          end
+          expect(ActiveStorage::FixtureSet.blob(filename: "sample.txt")).to include("sample.txt")
         end
       end
       """
     When I run `rspec spec/lib/fixture_set_blob.rb`
-    Then the examples should all pass
\ No newline at end of file
+    Then the examples should all pass
diff --git features/support/rails_versions.rb features/support/rails_versions.rb
new file mode 100644
index 00000000..3b2e3ef7
--- /dev/null
+++ features/support/rails_versions.rb
@@ -0,0 +1,15 @@
+def rails_version
+  string_version = ENV.fetch("RAILS_VERSION", "~> 7.0.0")
+  if string_version == "main" || string_version.nil?
+    Float::INFINITY
+  else
+    string_version[/\d[\.-]\d/].tr('-', '.')
+  end
+end
+
+Before "@rails_post_7" do |scenario|
+  if rails_version.to_f < 7.0
+    warn "Skipping scenario #{scenario.name} on Rails v#{rails_version}"
+    skip_this_scenario
+  end
+end
-- 
2.39.1

[jaywhy]

@pirj I was able to add your patch. You're awesome 💯 👍

[jaywhy]

I fixed the Rubocop issue. Hopefully that is everything 🤞.

[JonRowe]

Released in 6.0.3