From ba4c98e21384e57da3d15805bc5d5b6e4a73a470 Mon Sep 17 00:00:00 2001
From: cryptogopher <git6453hub@michalczyk.pro>
Date: Fri, 24 Jan 2020 01:05:59 +0100
Subject: [PATCH] Added Formula unit test

---
 lib/body_tracking/formula.rb |  1 +
 test/unit/formula_test.rb    | 28 ++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 test/unit/formula_test.rb

diff --git a/lib/body_tracking/formula.rb b/lib/body_tracking/formula.rb
index b3a6def..2b5f943 100644
--- a/lib/body_tracking/formula.rb
+++ b/lib/body_tracking/formula.rb
@@ -79,6 +79,7 @@ module BodyTracking
       end
     end
 
+
     class FormulaBuilder < Ripper::SexpBuilder
       def initialize(*args)
         super(*args)
diff --git a/test/unit/formula_test.rb b/test/unit/formula_test.rb
new file mode 100644
index 0000000..76e9571
--- /dev/null
+++ b/test/unit/formula_test.rb
@@ -0,0 +1,28 @@
+require File.expand_path('../../test_helper', __FILE__)
+
+class FormulaTest < ActiveSupport::TestCase
+  include BodyTracking::Formula
+
+  def setup
+  end
+
+  def test_builder_parses_valid_formulas_properly
+    vector = [
+      '4', Set[], [
+        {type: :indexed, content: '4*2'}
+      ],
+
+      #'4*2'
+      #'Fats'
+      #'fats'
+    ]
+
+    vector.each_slice(3) do |formula, identifiers, parts|
+      parser = FormulaBuilder.new(formula)
+      i, p = parser.parse
+      assert_empty parser.errors
+      assert_equal identifiers, i
+      assert_equal parts, p
+    end
+  end
+end