formal argument cannot be a class variable in ruby - ruby

Question

I've never used Ruby before, and am attempting to run a program written
long ago. I've installed Ruby 2.4.1 and the gem package [test-unit
3.4.3] OK, but when I try to run it, I get an error:
tcreporter.rb:156: formal argument cannot be a class variable
##tc_array.each do |##tc|
^
Is there something in particular I'm doing wrong?
Below is the code snippet :
class TCReporter
##m = nil; ##c = nil; ##tc = nil; ##status = 'p'; ##notes = nil; ##tlArr = []
##resultMapping = {'p'=>'PASS', 'f'=>'FAIL', 'b'=>'BLOCKED', 's'=>'SKIP','pr'=>'PREQFAIL', 'con'=>'CONERR', 'h'=>'HWSKIP', 'cor'=>'CORE'}
def self.report_result(currentTest, status, notes=nil)
if $trInit
##m = currentTest.split('(')[0] ###m is the test METHOD currently being executed in the framework.
##c = currentTest.split('(')[1].split(')')[0] ###c is the test CLASS currently being executed in the framework
if ##c =~ /(?:#{TESTRAIL_TEST_PREFIXES.join('|')})_\d*$/i #If there's a mapping on the test class then report a test class result.
##tc = ##c.scan(/(?:#{TESTRAIL_TEST_PREFIXES.join('|')})_\d*$/i)[0].upcase.sub('_', '-') #Get the TR class mapping
#When reporting at the test class level, the status always starts out as 'p' (PASS). If there's any
#non-passing status for any test method within the test class (blocked or failed) then use that result
#for reporting. Once the global status '##status' has been updated once then no more updating occurs.
if ##status == 'p' && status != 'p'
##status = status
##notes = notes
end
if eval("#{##c}.public_instance_methods.grep(/^test_/).sort.first") == ##m && eval("#{##c}.public_instance_methods.grep(/^test_/).sort.last") == ##m #The first test method is the last test method. All done, do a TestLink update.
begin
result = TR.report_tc_result(##tc, TESTRAIL_PROJECT, TESTRAIL_MILESTONE, TESTRAIL_PLAN, TESTRAIL_RUN, TESTRAIL_BUILD, ##status, (##notes ? ##notes : notes))
ensure
result.case_id = ##tc
result.class = ##c
result.method = ##m
if !result.success #success means a successful communication with testLink and test case was found and updated.
$trReport = ReportFile.new('tr_report.txt') if !$trReport
$trReport.puts "#{##tc}, #{TEST_ARGS.project}, #{TEST_ARGS.plan}, #{TEST_ARGS.build}, #{TEST_ARGS.platform}, #{##c}, #{##m}, #{status} 'class', #{result.message ||= result.exception}"
end
end
elsif eval("#{##c}.public_instance_methods.grep(/^test_/).sort.first") == ##m #A new test class is being evaluated. Set everything to default except status (use whatever the first test class returned).
##m = nil; ##c = nil; ##tc = nil; ##status = status
elsif eval("#{##c}.public_instance_methods.grep(/^test_/).sort.last") == ##m #Done with the test class. Time to report the test result.
begin
result = TR.report_tc_result(##tc, TESTRAIL_PROJECT, TESTRAIL_MILESTONE, TESTRAIL_PLAN, TESTRAIL_RUN, TESTRAIL_BUILD, ##status, (##notes ? ##notes : notes))
ensure
result.case_id = ##tc
result.class = ##c
result.method = ##m
if !result.success #success means a successful communication with testLink and test case was found and updated.
$trReport = ReportFile.new('tr_report.txt') if !$trReport
$trReport.puts "#{##tc}, #{TEST_ARGS.project}, #{"#{TEST_ARGS.milestone}, " if TEST_ARGS.milestone}#{TEST_ARGS.plan}, #{TEST_ARGS.build}, #{TEST_ARGS.platform}, #{##c}, #{##m}, #{status} 'class', #{result.message ||= result.exception}"
end
end
else #The test class is still being executed. Don't update TestLink yet, just check for a non-passing result.
if ##status == 'p' && status != 'p' #Update the test status if it's a non-pass result. Otherwise, use the earlier failed or blocked status.
##status = status
end
end
end
#If there's a mapping on a test method then report a test method result.
if ##m =~ /(?:#{TESTRAIL_TEST_PREFIXES.join('|')})_\d?[\d_]+$/i
##tc_array = ##m.scan(/(?:#{TESTRAIL_TEST_PREFIXES.join('|')})_\d?[\d_]+$/i)[0].upcase.sub('_', '-').split("_")
if ##tc_array.size > 1
tmp_prefix = ##tc_array[0].split("-").first
tmp_array = []
##tc_array.each do|tmp|
tmp_array << tmp_prefix + "-" + tmp.split("-").last
end
##tc_array = tmp_array
end
##tc_array.each do |##tc|
begin
result = TR.report_tc_result(##tc, TESTRAIL_PROJECT, TESTRAIL_MILESTONE, TESTRAIL_PLAN, TESTRAIL_RUN, TESTRAIL_BUILD, status, notes)
puts status
rescue => e
puts e
ensure
if result && !result.success
$trReport = ReportFile.new('tr_report.txt') if !$trReport
$trReport.puts "#{##tc}, #{TEST_ARGS.project}, #{"#{TEST_ARGS.milestone}, " if TEST_ARGS.milestone}#{TEST_ARGS.plan}, #{TEST_ARGS.build}, #{TEST_ARGS.platform}, #{##c}, #{##m}, #{status} 'class', #{result.message ||= result.exception}"
end
end
end
end
end
end
Thanks in advance

Answer 1

This is fixed now after making "tc" as local variable.