Update to ruby/spec@d6921ef

1 files changed, 48 insertions, 0 deletions

diff --git a/spec/ruby/command_line/backtrace_limit_spec.rb b/spec/ruby/command_line/backtrace_limit_spec.rb
new file mode 100644
index 0000000000..c0b243841e
--- /dev/null
+++ b/spec/ruby/command_line/backtrace_limit_spec.rb
@@ -0,0 +1,48 @@
+require_relative '../spec_helper'
+
+ruby_version_is "3.0" do
+  describe "The --backtrace-limit command line option" do
+    it "limits top-level backtraces to a given number of entries" do
+      file = fixture(__FILE__ , "backtrace.rb")
+      out = ruby_exe(file, options: "--backtrace-limit=2", args: "top 2>&1", exit_status: 1)
+      out = out.gsub(__dir__, '')
+
+      out.should == <<-MSG
+top
+/fixtures/backtrace.rb:2:in `a': unhandled exception
+\tfrom /fixtures/backtrace.rb:6:in `b'
+\tfrom /fixtures/backtrace.rb:10:in `c'
+\t ... 2 levels...
+      MSG
+    end
+
+    it "affects Exception#full_message" do
+      file = fixture(__FILE__ , "backtrace.rb")
+      out = ruby_exe(file, options: "--backtrace-limit=2", args: "full_message 2>&1")
+      out = out.gsub(__dir__, '')
+
+      out.should == <<-MSG
+full_message
+/fixtures/backtrace.rb:2:in `a': unhandled exception
+\tfrom /fixtures/backtrace.rb:6:in `b'
+\tfrom /fixtures/backtrace.rb:10:in `c'
+\t ... 2 levels...
+      MSG
+    end
+
+    it "does not affect Exception#backtrace" do
+      file = fixture(__FILE__ , "backtrace.rb")
+      out = ruby_exe(file, options: "--backtrace-limit=2", args: "backtrace 2>&1")
+      out = out.gsub(__dir__, '')
+
+      out.should == <<-MSG
+backtrace
+/fixtures/backtrace.rb:2:in `a'
+/fixtures/backtrace.rb:6:in `b'
+/fixtures/backtrace.rb:10:in `c'
+/fixtures/backtrace.rb:14:in `d'
+/fixtures/backtrace.rb:29:in `<main>'
+      MSG
+    end
+  end
+end