第22章 失敗の扱い

README.md

@@ -31,3 +31,4 @@
   * [第19章 前準備](https://github.com/at-grandpa/study-tdd/pull/24)
   * [第20章 後片付け](https://github.com/at-grandpa/study-tdd/pull/25)
   * [第21章 数え上げ](https://github.com/at-grandpa/study-tdd/pull/26)
+  * [第22章 失敗の扱い](https://github.com/at-grandpa/study-tdd/pull/27)

part02/src/xunit.cr

@@ -23,8 +23,16 @@ class TestCaseTest < TestCase
     result = @test.run
     result.summary.should eq "1 run, 1 failed"
   end
+
+  def test_failed_result_formatting
+    result = TestResult.new
+    result.test_started
+    result.test_failed
+    result.summary.should eq "1 run, 1 failed"
+  end
 end
 
-TestCaseTest.new("test_template_method").run
-TestCaseTest.new("test_result").run
-# TestCaseTest.new("test_failed_result").run
+puts TestCaseTest.new("test_template_method").run.summary
+puts TestCaseTest.new("test_result").run.summary
+puts TestCaseTest.new("test_failed_result").run.summary
+puts TestCaseTest.new("test_failed_result_formatting").run.summary

part02/src/xunit/test_case.cr

@@ -9,15 +9,19 @@ class TestCase
     result = TestResult.new
     result.test_started
     setup
-    {% begin %}
-      case @name
-        {% for method, index in @type.methods.map(&.name) %}
-          when {{method.stringify}} then {{method.id}}
-        {% end %}
-      else
-        raise "Undefined method. You specified: #{@name}"
-      end
-    {% end %}
+    begin
+      {% begin %}
+        case @name
+          {% for method, index in @type.methods.map(&.name) %}
+            when {{method.stringify}} then {{method.id}}
+          {% end %}
+        else
+          raise "Undefined method. You specified: #{@name}"
+        end
+      {% end %}
+    rescue e
+      result.test_failed
+    end
     teardown
     result
   end

part02/src/xunit/test_result.cr

@@ -1,11 +1,16 @@
 class TestResult
   property run_count : Int32 = 0
+  property error_count : Int32 = 0
 
   def test_started
     @run_count += 1
   end
 
+  def test_failed
+    @error_count += 1
+  end
+
   def summary
-    "%d run, 0 failed" % [@run_count]
+    "%d run, %d failed" % [@run_count, @error_count]
   end
 end