Updated test cases documentation

docs/test_cases/t00051.md

@@ -0,0 +1,86 @@
+# t00051 - Test case for relative paths in lambda names
+## Config
+```yaml
+compilation_database_dir: ..
+output_directory: puml
+diagrams:
+  t00051_class:
+    type: class
+    glob:
+      - ../../tests/t00051/t00051.cc
+    include:
+      namespaces:
+        - clanguml::t00051
+    using_namespace:
+      - clanguml::t00051
+```
+## Source code
+File t00051.cc
+```cpp
+#include <thread>
+
+namespace clanguml {
+namespace t00051 {
+
+template <typename F, typename FF = F> struct B : private std::thread {
+    B(F &&f, FF &&ff)
+        : f_{std::move(f)}
+        , ff_{std::move(ff)}
+    {
+    }
+
+    void f() { f_(); }
+    void ff() { ff_(); }
+
+    F f_;
+    FF ff_;
+};
+
+class A {
+public:
+private:
+    class custom_thread1 : private std::thread {
+    public:
+        template <class Function, class... Args>
+        explicit custom_thread1(Function &&f, Args &&...args)
+            : std::thread::thread(
+                  std::forward<Function>(f), std::forward<Args>(args)...)
+        {
+        }
+    };
+
+    static custom_thread1 start_thread1();
+
+    class custom_thread2 : private std::thread {
+        using std::thread::thread;
+    };
+
+    static custom_thread2 start_thread2();
+
+    auto start_thread3()
+    {
+        return B{[]() {}, []() {}};
+    }
+
+    auto get_function()
+    {
+        return []() {};
+    }
+};
+
+A::custom_thread1 A::start_thread1()
+{
+    return custom_thread1{[]() {}};
+}
+
+A::custom_thread2 A::start_thread2()
+{
+    return custom_thread2{[]() {}};
+}
+
+}
+}
+
+```
+## Generated UML diagrams
+![t00051_class](./t00051_class.svg "Test case for relative paths in lambda names")