diff --git a/spec/expectations_helper.cr b/spec/expectations_helper.cr
index a88abfa..955db42 100644
--- a/spec/expectations_helper.cr
+++ b/spec/expectations_helper.cr
@@ -56,3 +56,9 @@ def generate_results(success_count = 1, failure_count = 0)
   end
   {successful: successful, failures: failures, results: results, reporter: reporter}
 end
+
+def report_results(success_count = 1, failure_count = 0)
+  harness = Spectator::Internals::Harness.current
+  success_count.times { harness.report_expectation(new_successful_result) }
+  failure_count.times { harness.report_expectation(new_failure_result) }
+end
diff --git a/spec/internals/harness_spec.cr b/spec/internals/harness_spec.cr
index a7adbb3..6900a71 100644
--- a/spec/internals/harness_spec.cr
+++ b/spec/internals/harness_spec.cr
@@ -12,14 +12,18 @@ describe Spectator::Internals::Harness do
     end
 
     context "with a passing exmaple" do
-      it "returns a successful result" do
-
+      it "returns a passing result" do
+        example = PassingExample.create
+        result = Spectator::Internals::Harness.run(example)
+        result.passed?.should be_true
       end
     end
 
     context "with a failing example" do
-      it "returns a failed result" do
-
+      it "returns a failing result" do
+        example = FailingExample.create
+        result = Spectator::Internals::Harness.run(example)
+        result.passed?.should be_false
       end
     end
   end
@@ -55,7 +59,17 @@ describe Spectator::Internals::Harness do
 
     context "with a failed result" do
       it "raises an error" do
-
+        error = nil.as(Exception?)
+        spy = SpyExample.create do
+          harness = Spectator::Internals::Harness.current
+          begin
+            harness.report_expectation(new_failure_result)
+          rescue ex
+            error = ex
+          end
+        end
+        Spectator::Internals::Harness.run(spy)
+        error.should be_a(Spectator::ExampleFailed)
       end
     end
   end
diff --git a/spec/spec_helper.cr b/spec/spec_helper.cr
index 674e775..8e9164d 100644
--- a/spec/spec_helper.cr
+++ b/spec/spec_helper.cr
@@ -18,6 +18,53 @@ class SpySUT
   end
 end
 
+# Example that always succeeds.
+class PassingExample < Spectator::RunnableExample
+  # Dummy description.
+  def what
+    "PASS"
+  end
+
+  # Run the example that always passes.
+  # If this doesn't something broke.
+  private def run_instance
+    report_results(1, 0)
+  end
+
+  # Creates a passing example.
+  def self.create
+    hooks = Spectator::ExampleHooks.empty
+    group = Spectator::RootExampleGroup.new(hooks)
+    values = Spectator::Internals::SampleValues.empty
+    new(group, values).tap do |example|
+      group.children = [example.as(Spectator::ExampleComponent)]
+    end
+  end
+end
+
+# Example that always fails.
+class FailingExample < Spectator::RunnableExample
+  # Dummy description.
+  def what
+    "FAIL"
+  end
+
+  # Run the example that always fails.
+  private def run_instance
+    report_results(0, 1)
+  end
+
+  # Creates a passing example.
+  def self.create
+    hooks = Spectator::ExampleHooks.empty
+    group = Spectator::RootExampleGroup.new(hooks)
+    values = Spectator::Internals::SampleValues.empty
+    new(group, values).tap do |example|
+      group.children = [example.as(Spectator::ExampleComponent)]
+    end
+  end
+end
+
 # Example that invokes a closure when it is run.
 # This is useful for capturing what's going on when an event is running.
 class SpyExample < Spectator::RunnableExample