summaryrefslogtreecommitdiff
path: root/spec/ruby/core/warning
diff options
context:
space:
mode:
Diffstat (limited to 'spec/ruby/core/warning')
-rw-r--r--spec/ruby/core/warning/categories_spec.rb12
-rw-r--r--spec/ruby/core/warning/element_reference_spec.rb29
-rw-r--r--spec/ruby/core/warning/element_set_spec.rb41
-rw-r--r--spec/ruby/core/warning/performance_warning_spec.rb28
-rw-r--r--spec/ruby/core/warning/warn_spec.rb187
5 files changed, 297 insertions, 0 deletions
diff --git a/spec/ruby/core/warning/categories_spec.rb b/spec/ruby/core/warning/categories_spec.rb
new file mode 100644
index 0000000000..1e310ef38b
--- /dev/null
+++ b/spec/ruby/core/warning/categories_spec.rb
@@ -0,0 +1,12 @@
+require_relative '../../spec_helper'
+
+ruby_version_is "3.4" do
+ describe "Warning.categories" do
+ # There might be more, but these are standard across Ruby implementations
+ it "returns the list of possible warning categories" do
+ Warning.categories.should.include? :deprecated
+ Warning.categories.should.include? :experimental
+ Warning.categories.should.include? :performance
+ end
+ end
+end
diff --git a/spec/ruby/core/warning/element_reference_spec.rb b/spec/ruby/core/warning/element_reference_spec.rb
new file mode 100644
index 0000000000..c0ed37ef13
--- /dev/null
+++ b/spec/ruby/core/warning/element_reference_spec.rb
@@ -0,0 +1,29 @@
+require_relative '../../spec_helper'
+
+describe "Warning.[]" do
+ it "returns default values for categories :deprecated and :experimental" do
+ # If any warning options were set on the Ruby that will be executed, then
+ # it's possible this test will fail. In this case we will skip this test.
+ skip if ruby_exe.any? { |opt| opt.start_with?("-W") }
+
+ ruby_exe('p [Warning[:deprecated], Warning[:experimental]]').chomp.should == "[false, true]"
+ ruby_exe('p [Warning[:deprecated], Warning[:experimental]]', options: "-w").chomp.should == "[true, true]"
+ end
+
+ ruby_version_is '3.3' do
+ it "returns default values for :performance category" do
+ ruby_exe('p Warning[:performance]').chomp.should == "false"
+ ruby_exe('p Warning[:performance]', options: "-w").chomp.should == "false"
+ end
+ end
+
+ it "raises for unknown category" do
+ -> { Warning[:noop] }.should raise_error(ArgumentError, /unknown category: noop/)
+ end
+
+ it "raises for non-Symbol category" do
+ -> { Warning[42] }.should raise_error(TypeError)
+ -> { Warning[false] }.should raise_error(TypeError)
+ -> { Warning["noop"] }.should raise_error(TypeError)
+ end
+end
diff --git a/spec/ruby/core/warning/element_set_spec.rb b/spec/ruby/core/warning/element_set_spec.rb
new file mode 100644
index 0000000000..d59a7d4c9e
--- /dev/null
+++ b/spec/ruby/core/warning/element_set_spec.rb
@@ -0,0 +1,41 @@
+require_relative '../../spec_helper'
+
+describe "Warning.[]=" do
+ it "emits and suppresses warnings for :deprecated" do
+ ruby_exe('Warning[:deprecated] = true; $; = ""', args: "2>&1").should =~ /is deprecated/
+ ruby_exe('Warning[:deprecated] = false; $; = ""', args: "2>&1").should == ""
+ end
+
+ describe ":experimental" do
+ before do
+ @src = 'warn "This is experimental warning.", category: :experimental'
+ end
+
+ it "emits and suppresses warnings for :experimental" do
+ ruby_exe("Warning[:experimental] = true; eval('#{@src}')", args: "2>&1").should =~ /is experimental/
+ ruby_exe("Warning[:experimental] = false; eval('#{@src}')", args: "2>&1").should == ""
+ end
+ end
+
+ ruby_version_is '3.3' do
+ it "enables or disables performance warnings" do
+ original = Warning[:performance]
+ begin
+ Warning[:performance] = !original
+ Warning[:performance].should == !original
+ ensure
+ Warning[:performance] = original
+ end
+ end
+ end
+
+ it "raises for unknown category" do
+ -> { Warning[:noop] = false }.should raise_error(ArgumentError, /unknown category: noop/)
+ end
+
+ it "raises for non-Symbol category" do
+ -> { Warning[42] = false }.should raise_error(TypeError)
+ -> { Warning[false] = false }.should raise_error(TypeError)
+ -> { Warning["noop"] = false }.should raise_error(TypeError)
+ end
+end
diff --git a/spec/ruby/core/warning/performance_warning_spec.rb b/spec/ruby/core/warning/performance_warning_spec.rb
new file mode 100644
index 0000000000..ab0badcd3d
--- /dev/null
+++ b/spec/ruby/core/warning/performance_warning_spec.rb
@@ -0,0 +1,28 @@
+require_relative '../../spec_helper'
+
+
+describe "Performance warnings" do
+ guard -> { ruby_version_is("3.4") || RUBY_ENGINE == "truffleruby" } do
+ # Optimising Integer, Float or Symbol methods is kind of implementation detail
+ # but multiple implementations do so. So it seems reasonable to have a test case
+ # for at least one such common method.
+ # See https://bugs.ruby-lang.org/issues/20429
+ context "when redefined optimised methods" do
+ it "emits performance warning for redefining Integer#+" do
+ code = <<~CODE
+ Warning[:performance] = true
+
+ class Integer
+ ORIG_METHOD = instance_method(:+)
+
+ def +(...)
+ ORIG_METHOD.bind(self).call(...)
+ end
+ end
+ CODE
+
+ ruby_exe(code, args: "2>&1").should.include?("warning: Redefining 'Integer#+' disables interpreter and JIT optimizations")
+ end
+ end
+ end
+end
diff --git a/spec/ruby/core/warning/warn_spec.rb b/spec/ruby/core/warning/warn_spec.rb
new file mode 100644
index 0000000000..2e4a822e02
--- /dev/null
+++ b/spec/ruby/core/warning/warn_spec.rb
@@ -0,0 +1,187 @@
+require_relative '../../spec_helper'
+
+describe "Warning.warn" do
+ it "complains" do
+ -> {
+ Warning.warn("Chunky bacon!")
+ }.should complain("Chunky bacon!")
+ end
+
+ it "does not add a newline" do
+ ruby_exe("Warning.warn('test')", args: "2>&1").should == "test"
+ end
+
+ it "returns nil" do
+ ruby_exe("p Warning.warn('test')", args: "2>&1").should == "testnil\n"
+ end
+
+ it "extends itself" do
+ Warning.singleton_class.ancestors.should include(Warning)
+ end
+
+ it "has Warning as the method owner" do
+ ruby_exe("p Warning.method(:warn).owner").should == "Warning\n"
+ end
+
+ it "can be overridden" do
+ code = <<-RUBY
+ $stdout.sync = true
+ $stderr.sync = true
+ def Warning.warn(msg)
+ if msg.start_with?("A")
+ puts msg.upcase
+ else
+ super
+ end
+ end
+ Warning.warn("A warning!")
+ Warning.warn("warning from stderr\n")
+ RUBY
+ ruby_exe(code, args: "2>&1").should == %Q[A WARNING!\nwarning from stderr\n]
+ end
+
+ it "is called by parser warnings" do
+ Warning.should_receive(:warn)
+ verbose = $VERBOSE
+ $VERBOSE = false
+ begin
+ eval "{ key: :value, key: :value2 }"
+ ensure
+ $VERBOSE = verbose
+ end
+ end
+
+ it "is called by Kernel.warn with nil category keyword" do
+ Warning.should_receive(:warn).with("Chunky bacon!\n", category: nil)
+ verbose = $VERBOSE
+ $VERBOSE = false
+ begin
+ Kernel.warn("Chunky bacon!")
+ ensure
+ $VERBOSE = verbose
+ end
+ end
+
+ it "is called by Kernel.warn with given category keyword converted to a symbol" do
+ Warning.should_receive(:warn).with("Chunky bacon!\n", category: :deprecated)
+ verbose = $VERBOSE
+ $VERBOSE = false
+ begin
+ Kernel.warn("Chunky bacon!", category: "deprecated")
+ ensure
+ $VERBOSE = verbose
+ end
+ end
+
+ it "warns when category is :deprecated and Warning[:deprecated] is true" do
+ warn_deprecated = Warning[:deprecated]
+ Warning[:deprecated] = true
+ begin
+ -> {
+ Warning.warn("foo", category: :deprecated)
+ }.should complain("foo")
+ ensure
+ Warning[:deprecated] = warn_deprecated
+ end
+ end
+
+ it "warns when category is :experimental and Warning[:experimental] is true" do
+ warn_experimental = Warning[:experimental]
+ Warning[:experimental] = true
+ begin
+ -> {
+ Warning.warn("foo", category: :experimental)
+ }.should complain("foo")
+ ensure
+ Warning[:experimental] = warn_experimental
+ end
+ end
+
+ ruby_version_is "3.4" do
+ it "warns when category is :strict_unused_block but Warning[:strict_unused_block] is false" do
+ warn_strict_unused_block = Warning[:strict_unused_block]
+ Warning[:strict_unused_block] = true
+ begin
+ -> {
+ Warning.warn("foo", category: :strict_unused_block)
+ }.should complain("foo")
+ ensure
+ Warning[:strict_unused_block] = warn_strict_unused_block
+ end
+ end
+ end
+
+ it "doesn't print message when category is :deprecated but Warning[:deprecated] is false" do
+ warn_deprecated = Warning[:deprecated]
+ Warning[:deprecated] = false
+ begin
+ -> {
+ Warning.warn("foo", category: :deprecated)
+ }.should_not complain
+ ensure
+ Warning[:deprecated] = warn_deprecated
+ end
+ end
+
+ it "doesn't print message when category is :experimental but Warning[:experimental] is false" do
+ warn_experimental = Warning[:experimental]
+ Warning[:experimental] = false
+ begin
+ -> {
+ Warning.warn("foo", category: :experimental)
+ }.should_not complain
+ ensure
+ Warning[:experimental] = warn_experimental
+ end
+ end
+
+ ruby_version_is "3.4" do
+ it "doesn't print message when category is :strict_unused_block but Warning[:strict_unused_block] is false" do
+ warn_strict_unused_block = Warning[:strict_unused_block]
+ Warning[:strict_unused_block] = false
+ begin
+ -> {
+ Warning.warn("foo", category: :strict_unused_block)
+ }.should_not complain
+ ensure
+ Warning[:strict_unused_block] = warn_strict_unused_block
+ end
+ end
+ end
+
+ ruby_bug '#20573', ''...'3.4' do
+ it "isn't called by Kernel.warn when category is :deprecated but Warning[:deprecated] is false" do
+ warn_deprecated = Warning[:deprecated]
+ begin
+ Warning[:deprecated] = false
+ Warning.should_not_receive(:warn)
+ Kernel.warn("foo", category: :deprecated)
+ ensure
+ Warning[:deprecated] = warn_deprecated
+ end
+ end
+
+ it "isn't called by Kernel.warn when category is :experimental but Warning[:experimental] is false" do
+ warn_experimental = Warning[:experimental]
+ begin
+ Warning[:experimental] = false
+ Warning.should_not_receive(:warn)
+ Kernel.warn("foo", category: :experimental)
+ ensure
+ Warning[:experimental] = warn_experimental
+ end
+ end
+ end
+
+ it "prints the message when VERBOSE is false" do
+ -> { Warning.warn("foo") }.should complain("foo")
+ end
+
+ it "prints the message when VERBOSE is nil" do
+ -> { Warning.warn("foo") }.should complain("foo", verbose: nil)
+ end
+
+ it "prints the message when VERBOSE is true" do
+ -> { Warning.warn("foo") }.should complain("foo", verbose: true)
+ end
+end
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-21 22:46:25 +0000