Add coverage for JSONFormatter

Author: etagwerker

rails_stats.gemspec

@@ -24,6 +24,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "codecov"
   spec.add_development_dependency "minitest"
   spec.add_development_dependency "minitest-around"
+  spec.add_development_dependency "minitest-spec-context"
   spec.add_development_dependency "simplecov"
   spec.add_development_dependency "simplecov-console"
 end

test/lib/rails_stats/json_formatter_test.rb

@@ -0,0 +1,94 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+describe RailsStats::JSONFormatter do
+  describe "#result" do
+    JSON_STRING = <<~EOS
+    [{
+      "name": "Mailers",
+      "lines": "4",
+      "loc": "4",
+      "classes": "1",
+      "methods": "0",
+      "m_over_c": "0",
+      "loc_over_m": "0"
+    }, {
+      "name": "Models",
+      "lines": "3",
+      "loc": "3",
+      "classes": "1",
+      "methods": "0",
+      "m_over_c": "0",
+      "loc_over_m": "0"
+    }, {
+      "name": "Javascripts",
+      "lines": "27",
+      "loc": "7",
+      "classes": "0",
+      "methods": "0",
+      "m_over_c": "0",
+      "loc_over_m": "0"
+    }, {
+      "name": "Jobs",
+      "lines": "7",
+      "loc": "2",
+      "classes": "1",
+      "methods": "0",
+      "m_over_c": "0",
+      "loc_over_m": "0"
+    }, {
+      "name": "Controllers",
+      "lines": "7",
+      "loc": "6",
+      "classes": "1",
+      "methods": "1",
+      "m_over_c": "1",
+      "loc_over_m": "4"
+    }, {
+      "name": "Helpers",
+      "lines": "3",
+      "loc": "3",
+      "classes": "0",
+      "methods": "0",
+      "m_over_c": "0",
+      "loc_over_m": "0"
+    }, {
+      "name": "Channels",
+      "lines": "8",
+      "loc": "8",
+      "classes": "2",
+      "methods": "0",
+      "m_over_c": "0",
+      "loc_over_m": "0"
+    }, {
+      "name": "Configuration",
+      "lines": "417",
+      "loc": "111",
+      "classes": "1",
+      "methods": "0",
+      "m_over_c": "0",
+      "loc_over_m": "0"
+    }, {
+      "name": "Total",
+      "lines": "476",
+      "loc": "144",
+      "classes": "7",
+      "methods": "1",
+      "m_over_c": "0",
+      "loc_over_m": "142",
+      "code_to_test_ratio": "0.0",
+      "total": true
+    }]
+    EOS
+
+    it "outputs useful stats for a Rails project" do
+      root_directory = File.absolute_path("./test/dummy")
+
+      calculator = RailsStats::StatsCalculator.new(root_directory)
+      formatter  = RailsStats::JSONFormatter.new(calculator)
+
+      assert_equal JSON.parse(JSON_STRING), formatter.result
+    end
+  end
+end

test/test_helper.rb

@@ -23,5 +23,5 @@
 require "minitest/autorun"
 require "minitest/pride"
 require "minitest/around/spec"
-
+require "minitest-spec-context"
 require "rails_stats/all"