Revert "Use value_counts instead of tally"

test/youplot/backends/processing_test.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+require_relative '../../test_helper'
+
+class YouPlotCommandTest < Test::Unit::TestCase
+  test :count_values do
+    @m = YouPlot::Backends::Processing
+    assert_equal([%i[a b c], [3, 2, 1]], @m.count_values(%i[a a a b b c]))
+    assert_equal([%i[c b a], [3, 2, 1]], @m.count_values(%i[a b b c c c]))
+  end
+
+  test :count_values_non_tally do
+    @m = YouPlot::Backends::Processing
+    assert_equal([%i[a b c], [3, 2, 1]], @m.count_values(%i[a a a b b c], tally: false))
+    assert_equal([%i[c b a], [3, 2, 1]], @m.count_values(%i[a b b c c c], tally: false))
+  end
+end

test/youplot/simple_test.rb

@@ -112,15 +112,17 @@ class YouPlotSimpleTest < Test::Unit::TestCase
     assert_equal fixture('simple-boxplot.txt'), @stderr_file.read
   end
 
-  test :c do
-    YouPlot::Command.new(['count']).run
-    assert_equal fixture('simple-count.txt'), @stderr_file.read
-  end
+  # test :c do
+  #   omit
+  #   YouPlot::Command.new(['count', '-H', '-d,']).run
+  #   assert_equal fixture('iris-count.txt'), @stderr_file.read
+  # end
 
-  test :count do
-    YouPlot::Command.new(['c']).run
-    assert_equal fixture('simple-count.txt'), @stderr_file.read
-  end
+  # test :count do
+  #   omit
+  #   YouPlot::Command.new(['c', '-H', '-d,']).run
+  #   assert_equal fixture('iris-count.txt'), @stderr_file.read
+  # end
 
   test :plot_output_stdout do
     YouPlot::Command.new(['line', '-o']).run