Initial runtime test compilation

Allows for compiling single examples at runtime.

spec/helpers/result.cr

@@ -0,0 +1,59 @@
+module Spectator::SpecHelpers
+  # Information about an example compiled and run at runtime.
+  class Result
+    # Status of the example after running.
+    enum Outcome
+      Success
+      Failure
+      Error
+      Unknown
+    end
+
+    # Full name and description of the example.
+    getter name : String
+
+    # Status of the example after running.
+    getter outcome : Outcome
+
+    # Creates the result.
+    def initialize(@name, @outcome)
+    end
+
+    # Checks if the example was successful.
+    def success?
+      outcome.success?
+    end
+
+    # :ditto:
+    def successful?
+      outcome.success?
+    end
+
+    # Checks if the example failed, but did not error.
+    def failure?
+      outcome.failure?
+    end
+
+    # Checks if the example encountered an error.
+    def error?
+      outcome.error?
+    end
+
+    # Extracts the result information from a `JSON::Any` object.
+    def self.from_json_any(object : JSON::Any)
+      name = object["name"].as_s
+      outcome = parse_outcome_string(object["result"].as_s)
+      new(name, outcome)
+    end
+
+    # Converts a result string, such as "fail" to an enum value.
+    private def self.parse_outcome_string(string)
+      case string
+      when /success/i then Outcome::Success
+      when /fail/i then Outcome::Failure
+      when /error/i then Outcome::Error
+      else Outcome::Unknown
+      end
+    end
+  end
+end