termbench: Add crafted test case

libtermbench/termbench.cpp

@@ -199,6 +199,20 @@ namespace
         writeChar(_sink, 'm');
     }
 
+    class CraftedTest: public Test
+    {
+      public:
+        explicit CraftedTest(std::string name, std::string description, std::string text) noexcept:
+            Test(std::move(name), std::move(description)), _text { std::move(text) }
+        {
+        }
+
+        void fill(Buffer& _sink) noexcept override { _sink.write(_text); }
+
+      private:
+        std::string _text;
+    };
+
     class ManyLines: public Test
     {
       public:
@@ -386,4 +400,9 @@ std::unique_ptr<Test> sgrbg_line(size_t N)
     return std::make_unique<Line>(name, text);
 }
 
+std::unique_ptr<Test> crafted(std::string name, std::string description, std::string text)
+{
+    return std::make_unique<CraftedTest>(std::move(name), std::move(description), std::move(text));
+}
+
 } // namespace termbench::tests

libtermbench/termbench.h

@@ -125,4 +125,5 @@ std::unique_ptr<Test> binary();
 std::unique_ptr<Test> ascii_line(size_t);
 std::unique_ptr<Test> sgr_line(size_t);
 std::unique_ptr<Test> sgrbg_line(size_t);
+std::unique_ptr<Test> crafted(std::string name, std::string description, std::string text);
 } // namespace termbench::tests