Account for fuzzy completions.

Introduced in Fish 3.1
cf. https://github.com/fish-shell/fish-shell/issues/5467

Needed to make tests less strict.
Instead of checking the exact list of matches,
we require the expected ones and exclude some others.

test/features/step_definitions/completion.rb

@@ -7,12 +7,8 @@ module CompletionHelper
     completions = run_fish_command("complete -C\"sdk #{cmd}\"")
 
     completions.split("\n") \
-               .map { |line| line.split(/\s+/)[0].strip } \
-               .sort \
-               .uniq \
-               .join(', ')
+               .map { |line| line.split(/\s+/)[0].strip }
     # TODO: Why do we get duplicates in the Docker container?
-    #       --> remove uniq
   end
 end
 World CompletionHelper
@@ -21,6 +17,15 @@ When('the user enters {string} into the prompt') do |cmd|
   @response = complete(cmd.gsub(/["']/, ''))
 end
 
-Then(/^completion should propose "(.*)"$/) do |completions|
-  expect(@response).to eq(completions)
+Then('completion should propose {string}') do |completions|
+  completions = completions.split(',').map(&:strip)
+  expect(@response).to include(*completions)
+end
+
+Then('completion should not propose {patterns}') do |exclusions_patterns|
+  exclusions_patterns.each do |p|
+    @response.each do |r|
+      expect(r).not_to match(p)
+    end
+  end
 end