https://git.ruby-lang.org/ruby.git/commit/?id=b10940a839

From b10940a839636cbd990cb2f8a6430fb39c50fb04 Mon Sep 17 00:00:00 2001
From: Benoit Daloze <eregontp@g...>
Date: Sun, 8 Sep 2019 12:41:14 +0200
Subject: Improve Proc#to_s specs


diff --git a/spec/ruby/core/proc/shared/to_s.rb b/spec/ruby/core/proc/shared/to_s.rb
index 050feb7..8b9c839 100644
--- a/spec/ruby/core/proc/shared/to_s.rb
+++ b/spec/ruby/core/proc/shared/to_s.rb
@@ -1,7 +1,9 @@ https://github.com/ruby/ruby/blob/trunk/spec/ruby/core/proc/shared/to_s.rb#L1
 describe :proc_to_s, shared: true do
+  sep = ruby_version_is("2.7") ? " " : "@"
+
   describe "for a proc created with Proc.new" do
-    it "returns a description optionally including file and line number" do
-      Proc.new { "hello" }.send(@method).should =~ /^#<Proc:([^ ]*?)( ([^ ]*)\/to_s\.rb:4)?>$/
+    it "returns a description including file and line number" do
+      Proc.new { "hello" }.send(@method).should =~ /^#<Proc:([^ ]*?)#{sep}#{Regexp.escape __FILE__}:#{__LINE__ }>$/
     end
 
     it "has a binary encoding" do
@@ -10,8 +12,8 @@ describe :proc_to_s, shared: true do https://github.com/ruby/ruby/blob/trunk/spec/ruby/core/proc/shared/to_s.rb#L12
   end
 
   describe "for a proc created with lambda" do
-    it "returns a description including '(lambda)' and optionally including file and line number" do
-      -> { "hello" }.send(@method).should =~ /^#<Proc:([^ ]*?)( ([^ ]*)\/to_s\.rb:14)? \(lambda\)>$/
+    it "returns a description including '(lambda)' and including file and line number" do
+      -> { "hello" }.send(@method).should =~ /^#<Proc:([^ ]*?)#{sep}#{Regexp.escape __FILE__}:#{__LINE__ } \(lambda\)>$/
     end
 
     it "has a binary encoding" do
@@ -20,8 +22,8 @@ describe :proc_to_s, shared: true do https://github.com/ruby/ruby/blob/trunk/spec/ruby/core/proc/shared/to_s.rb#L22
   end
 
   describe "for a proc created with proc" do
-    it "returns a description optionally including file and line number" do
-      proc { "hello" }.send(@method).should =~ /^#<Proc:([^ ]*?)( ([^ ]*)\/to_s\.rb:24)?>$/
+    it "returns a description including file and line number" do
+      proc { "hello" }.send(@method).should =~ /^#<Proc:([^ ]*?)#{sep}#{Regexp.escape __FILE__}:#{__LINE__ }>$/
     end
 
     it "has a binary encoding" do
@@ -32,7 +34,7 @@ describe :proc_to_s, shared: true do https://github.com/ruby/ruby/blob/trunk/spec/ruby/core/proc/shared/to_s.rb#L34
   describe "for a proc created with UnboundMethod#to_proc" do
     it "returns a description including '(lambda)' and optionally including file and line number" do
       def hello; end
-      method("hello").to_proc.send(@method).should =~ /^#<Proc:([^ ]*?)( ([^ ]*)\/to_s\.rb:22)? \(lambda\)>$/
+      method("hello").to_proc.send(@method).should =~ /^#<Proc:([^ ]*?)(#{sep}#{Regexp.escape __FILE__}:#{__LINE__ })? \(lambda\)>$/
     end
 
     it "has a binary encoding" do
-- 
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