diff --git a/src/spectator/formatting/error_junit_test_case.cr b/src/spectator/formatting/error_junit_test_case.cr
index 2c2fc32..f832355 100644
--- a/src/spectator/formatting/error_junit_test_case.cr
+++ b/src/spectator/formatting/error_junit_test_case.cr
@@ -1,26 +1,19 @@
+require "./failure_junit_test_case"
+
 module Spectator::Formatting
-  private struct ErrorJUnitTestCase
+  # JUnit test case for a errored result.
+  private class ErrorJUnitTestCase < FailureJUnitTestCase
+    # Result for this test case.
+    private getter result
+
+    # Creates the JUnit test case.
     def initialize(@result : ErroredResult)
     end
 
-    def to_xml(xml : ::XML::Builder)
-      xml.element("testcase",
-        name: @result.example,
-        status: @result,
-        time: @result.elapsed.total_seconds,
-        classname: classname,
-        assertions: @result.expectations.size) do
-        xml.element("error", message: @result.error.message, type: @result.error.class)
-        @result.expectations.each_unsatisfied do |expectation|
-          xml.element("failure", message: expectation.actual_message) do
-            # TODO: Add values as text to this block.
-          end
-        end
-      end
-    end
-
-    private def classname
-      "TODO"
+    # Adds the exception to the XML block.
+    private def content(xml)
+      xml.element("error", message: @result.error.message, type: @result.error.class)
+      super
     end
   end
 end
diff --git a/src/spectator/formatting/failure_junit_test_case.cr b/src/spectator/formatting/failure_junit_test_case.cr
index 785a330..1d0aced 100644
--- a/src/spectator/formatting/failure_junit_test_case.cr
+++ b/src/spectator/formatting/failure_junit_test_case.cr
@@ -1,25 +1,23 @@
+require "./finished_junit_test_case"
+
 module Spectator::Formatting
-  private struct FailureJUnitTestCase
+  # JUnit test case for a failed result.
+  private class FailureJUnitTestCase < FinishedJUnitTestCase
+    # Result for this test case.
+    private getter result
+
+    # Creates the JUnit test case.
     def initialize(@result : FailedResult)
     end
 
-    def to_xml(xml : ::XML::Builder)
-      xml.element("testcase",
-        name: @result.example,
-        status: @result,
-        time: @result.elapsed.total_seconds,
-        classname: classname,
-        assertions: @result.expectations.size) do
-        @result.expectations.each_unsatisfied do |expectation|
-          xml.element("failure", message: expectation.actual_message) do
-            # TODO: Add values as text to block.
-          end
+    # Adds the failed expectations to the XML block.
+    private def content(xml)
+      super
+      @result.expectations.each_unsatisfied do |expectation|
+        xml.element("failure", message: expectation.actual_message) do
+          # TODO: Add values as text to block.
         end
       end
     end
-
-    private def classname
-      "TODO"
-    end
   end
 end
diff --git a/src/spectator/formatting/finished_junit_test_case.cr b/src/spectator/formatting/finished_junit_test_case.cr
new file mode 100644
index 0000000..0db79de
--- /dev/null
+++ b/src/spectator/formatting/finished_junit_test_case.cr
@@ -0,0 +1,21 @@
+require "./junit_test_case"
+
+module Spectator::Formatting
+  # Commonalities of all test cases that ran (success or failure).
+  private abstract class FinishedJUnitTestCase < JUnitTestCase
+    # Produces the test case XML element.
+    def to_xml(xml : ::XML::Builder)
+      xml.element("testcase", **full_attributes) do
+        content(xml)
+      end
+    end
+
+    # Attributes that go in the "testcase" XML element.
+    private def full_attributes
+      attributes.merge(
+        time: result.elapsed.total_seconds,
+        assertions: result.expectations.size
+      )
+    end
+  end
+end
diff --git a/src/spectator/formatting/junit_test_case.cr b/src/spectator/formatting/junit_test_case.cr
index d803219..4f7e4cb 100644
--- a/src/spectator/formatting/junit_test_case.cr
+++ b/src/spectator/formatting/junit_test_case.cr
@@ -1,26 +1,34 @@
 module Spectator::Formatting
-  # Selector for creating a JUnit test case based on a result.
-  private module JUnitTestCase
-    extend self
-
-    # Creates a successful JUnit test case.
-    def success(result)
-      SuccessfulJUnitTestCase.new(result.as(SuccessfulResult))
+  # Base type for all JUnit test case results.
+  private abstract class JUnitTestCase
+    # Produces the test case XML element.
+    def to_xml(xml : ::XML::Builder)
+      xml.element("testcase", **attributes) do
+        content(xml)
+      end
     end
 
-    # Creates a failure JUnit test case.
-    def failure(result)
-      FailureJUnitTestCase.new(result.as(FailedResult))
+    # Attributes that go in the "testcase" XML element.
+    private def attributes
+      {
+        name:      result.example,
+        status:    result,
+        classname: classname,
+      }
     end
 
-    # Creates an error JUnit test case.
-    def error(result)
-      ErrorJUnitTestCase.new(result.as(ErroredResult))
+    # Result to pull values from.
+    private abstract def result
+
+    # Adds additional content to the "testcase" XML block.
+    # Override this to add more content.
+    private def content(xml)
+      # ...
     end
 
-    # Creates a skipped JUnit test case.
-    def pending(result)
-      SkippedJUnitTestCase.new(result.as(PendingResult))
+    # Java-ified class name created from the spec.
+    private def classname
+      "TODO"
     end
   end
 end
diff --git a/src/spectator/formatting/junit_test_suite.cr b/src/spectator/formatting/junit_test_suite.cr
index 9645df1..ffff476 100644
--- a/src/spectator/formatting/junit_test_suite.cr
+++ b/src/spectator/formatting/junit_test_suite.cr
@@ -18,19 +18,51 @@ module Spectator::Formatting
         time: @report.runtime.total_seconds,
         name: name,
         package: package) do
-        @report.each do |result|
-          test_case = result.call(JUnitTestCase) { |r| r }
-          test_case.to_xml(xml)
-        end
+        add_test_cases(xml)
       end
     end
 
+    # Adds the test case elements to the XML.
+    private def add_test_cases(xml)
+      @report.each do |result|
+        test_case = result.call(JUnitTestCaseSelector) { |r| r }
+        test_case.to_xml(xml)
+      end
+    end
+
+    # Java-ified name of the test suite.
     private def name
       "TODO"
     end
 
+    # Java-ified package (path) of the test suite.
     private def package
       "TODO"
     end
+
+    # Selector for creating a JUnit test case based on a result.
+    private module JUnitTestCaseSelector
+      extend self
+
+      # Creates a successful JUnit test case.
+      def success(result)
+        SuccessfulJUnitTestCase.new(result.as(SuccessfulResult))
+      end
+
+      # Creates a failure JUnit test case.
+      def failure(result)
+        FailureJUnitTestCase.new(result.as(FailedResult))
+      end
+
+      # Creates an error JUnit test case.
+      def error(result)
+        ErrorJUnitTestCase.new(result.as(ErroredResult))
+      end
+
+      # Creates a skipped JUnit test case.
+      def pending(result)
+        SkippedJUnitTestCase.new(result.as(PendingResult))
+      end
+    end
   end
 end
diff --git a/src/spectator/formatting/skipped_junit_test_case.cr b/src/spectator/formatting/skipped_junit_test_case.cr
index 4be4e81..2ec0c01 100644
--- a/src/spectator/formatting/skipped_junit_test_case.cr
+++ b/src/spectator/formatting/skipped_junit_test_case.cr
@@ -1,19 +1,19 @@
+require "./junit_test_case"
+
 module Spectator::Formatting
-  private struct SkippedJUnitTestCase
+  # JUnit test case for a pending result.
+  private class SkippedJUnitTestCase < JUnitTestCase
+    # Result for this test case.
+    private getter result
+
+    # Creates the JUnit test case.
     def initialize(@result : PendingResult)
     end
 
-    def to_xml(xml : ::XML::Builder)
-      xml.element("testcase",
-        name: @result.example,
-        status: @result,
-        classname: classname) do
-        xml.element("skipped")
-      end
-    end
-
-    private def classname
-      "TODO"
+    # Adds the skipped tag to the XML block.
+    private def content(xml)
+      super
+      xml.element("skipped")
     end
   end
 end
diff --git a/src/spectator/formatting/successful_junit_test_case.cr b/src/spectator/formatting/successful_junit_test_case.cr
index 4eb3ab1..f8f0227 100644
--- a/src/spectator/formatting/successful_junit_test_case.cr
+++ b/src/spectator/formatting/successful_junit_test_case.cr
@@ -1,19 +1,11 @@
 module Spectator::Formatting
-  private struct SuccessfulJUnitTestCase
+  # JUnit test case for a successful result.
+  private class SuccessfulJUnitTestCase < FinishedJUnitTestCase
+    # Result for this test case.
+    private getter result
+
+    # Creates the JUnit test case.
     def initialize(@result : SuccessfulResult)
     end
-
-    def to_xml(xml : ::XML::Builder)
-      xml.element("testcase",
-        name: @result.example,
-        status: @result,
-        time: @result.elapsed.total_seconds,
-        classname: classname,
-        assertions: @result.expectations.size)
-    end
-
-    private def classname
-      "TODO"
-    end
   end
 end