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require_relative '../spec_helper'
describe "The $SAFE variable" do
ruby_version_is "2.6" do
after :each do
$SAFE = 0
end
end
it "is 0 by default" do
$SAFE.should == 0
proc {
$SAFE.should == 0
}.call
end
it "can be set to 0" do
proc {
$SAFE = 0
$SAFE.should == 0
}.call
end
it "can be set to 1" do
proc {
$SAFE = 1
$SAFE.should == 1
}.call
end
[2, 3, 4].each do |n|
it "cannot be set to #{n}" do
lambda {
proc {
$SAFE = n
}.call
}.should raise_error(ArgumentError, /\$SAFE=2 to 4 are obsolete/)
end
end
ruby_version_is ""..."2.6" do
it "cannot be set to values below 0" do
lambda {
proc {
$SAFE = -100
}.call
}.should raise_error(SecurityError, /tried to downgrade safe level from 0 to -100/)
end
end
it "cannot be set to values above 4" do
lambda {
proc {
$SAFE = 100
}.call
}.should raise_error(ArgumentError, /\$SAFE=2 to 4 are obsolete/)
end
ruby_version_is ""..."2.6" do
it "cannot be manually lowered" do
proc {
$SAFE = 1
lambda {
$SAFE = 0
}.should raise_error(SecurityError, /tried to downgrade safe level from 1 to 0/)
}.call
end
it "is automatically lowered when leaving a proc" do
$SAFE.should == 0
proc {
$SAFE = 1
}.call
$SAFE.should == 0
end
it "is automatically lowered when leaving a lambda" do
$SAFE.should == 0
lambda {
$SAFE = 1
}.call
$SAFE.should == 0
end
end
it "can be read when default from Thread#safe_level" do
Thread.current.safe_level.should == 0
end
it "can be read when modified from Thread#safe_level" do
proc {
$SAFE = 1
Thread.current.safe_level.should == 1
}.call
end
end
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