The term 'RSpec' is not recognized as the name of a cmdlet, function, script file, error - ruby

Question

I'm trying to test ruby file using rspec. But I'm getting error and It says
rspec : The term 'rspec' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a
path was included, verify that the path is correct and try again.
At line:1 char:1
+ rspec test2.rb
+ ~~~~~
+ CategoryInfo : ObjectNotFound: (rspec:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
](https://i.stack.imgur.com/axHV5.png)
How can I fix this.
Here I attached my all 3 ruby files also
user.rb
require_relative 'main'
print 'Input array: '
solution = Solution.new(gets.split.map(&:to_f))
if solution.posled?
puts "Yes, posled: #{solution.arr_new}"
else
puts 'No'
end
main.rb
# This class is responsible for checking is the elements before first negative sorted from min to max.
class Solution
attr_accessor :arr_new, :arr
def initialize(arr)
#arr = arr
#arr_new = []
#was_negative = false
#arr.each_with_index do |value, _index|
if value.negative?
#was_negative = true
break
else
#arr_new.push(value)
end
end
end
def posled?(arr_new = #arr_new)
if arr_new.any? && #was_negative
arr_new == arr_new.sort
else
false
end
end
end
test2.rb
require_relative 'main2'
RSpec.describe Solution do
describe '#Solution' do
it 'should return true' do
expect(Solution.posled?([1, 2, 3])).to eq(false)
end
it 'should return true if contains posled before negative el' do
uncorrect = [1, 2, 3, -1]
Random.rand(10).times { uncorrect.push(Random.rand(-10..9)) }
expect(Solution.posled?(uncorrect)).to eq(true)
end
it 'should return false if there is no posled before first neg el' do
uncorrect = [1, 3, 2, -1]
Random.rand(10).times { uncorrect.push(Random.rand(-10..9)) }
expect(Solution.posled?(uncorrect)).to eq(false)
end
it 'should return false if first el negative' do
uncorrect = [-1, 1, 2, 3]
Random.rand(10).times { uncorrect.push(Random.rand(-10..9)) }
expect(Solution.posled?(uncorrect)).to eq(false)
end
it 'should return false if there is no negative elements' do
uncorrect = [1, 2, 3]
Random.rand(10).times { uncorrect.push(Random.rand(-10..9)) }
expect(Solution.posled?(uncorrect)).to eq(false)
end
end
end
I tried ruby test file and looking for get errors and corrections. But when I run rspec I'm getting an error. How can I fix this

Answer 1

Your problem has nothing to do with the ruby files, according to your first output the command is not found.
There might be different reasons for this. Can you run ruby -version either in cmd or powershell? If it works, than you should check if rspec is installed within your ruby instance. Run gem list rspec the output should be like this:
*** LOCAL GEMS ***
rspec (3.12.0)
rspec-core (3.12.0)
rspec-expectations (3.12.0)
rspec-mocks (3.12.0)
rspec-support (3.12.0)
If it is found try reinstalling it with gem uninstall rspec and than gem install rspec.
In case neither ruby nor rspec work, you should check you PATH variable with echo %PATH% in cmd or $Env:Path in Powershell. There should be a record pointing to ruby bin folder.
The other thing to keep in mind is you may have multiple ruby versions installed. RubyInstaller website suggests using uru. If you've installed ruby with uru, you first need to activate your ruby instance. Either in Powershell or cmd run uru ls to see all the versions installed. In my case:
187p374 : ruby 1.8.7 (2013-06-27 patchlevel 374) [i386-mingw32]
233p222 : ruby 2.3.3p222 (2016-11-21 revision 56859) [x64-mingw32]
253p105 : ruby 2.5.3p105 (2018-10-18 revision 65156) [x64-mingw32]
268p205 : ruby 2.6.8p205 (2021-07-07 revision 67951) [x64-mingw32]
274p191 : ruby 2.7.4p191 (2021-07-07 revision a21a3b7d23) [x64-mingw32]
310p0 : ruby 3.1.0p0 (2021-12-25 revision fb4df44d16) [i386-mingw32]
jruby : jruby 9.2.19.0 (2.5.8) 2021-06-15 55810c552b Java HotSpot(TM) 64...
main : ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [x64-mingw32]
You have to select one of the listed versions, e.g. uru main, than all the ruby commands and installed gems should work for the opened Powershell or cmd session, path output will also feature the selected version.
In case you have some other software to manage multiple ruby versions please refer to its documentation.