diff --git a/tests/webtbs/tbug825.pp b/tests/webtbs/tbug825.pp
new file mode 100644
index 0000000000..5499e320d7
--- /dev/null
+++ b/tests/webtbs/tbug825.pp
@@ -0,0 +1,39 @@
+{$mode tp}
+{ args for destructors
+  are allowed in TP mode for compatibility only PM }
+
+program   test_destructor_with_args;
+
+var
+  z : longint;
+
+  type
+    tt = object
+     constructor dummy;
+     destructor done(x : longint);virtual;
+    end;
+
+  constructor tt.dummy;
+    begin
+    end;
+
+  destructor tt.done;
+    begin
+      Writeln('x in tt.done is ',x);
+      z:=x;
+    end;
+
+  var
+    pt : ^tt;
+
+begin
+  Writeln('ln(5)=',ln(5));
+  new(pt,dummy);
+  pt^.done(4);
+  if z<>4 then
+    Halt(1);
+  pt^.dummy;
+  dispose(pt,done(5));
+  if z<>5 then
+    Halt(1);
+end.
\ No newline at end of file
diff --git a/tests/webtbs/tbug848.pp b/tests/webtbs/tbug848.pp
index 9140e303c6..378fe7fa99 100644
--- a/tests/webtbs/tbug848.pp
+++ b/tests/webtbs/tbug848.pp
@@ -3,8 +3,7 @@
 PROCEDURE a;
 VAR v,v2,v3:integer;
 
-  PROCEDURE b;
-  BEGIN
+  PROCEDURE b;assembler;
     ASM
       MOV AX,v
       mov v2,AX
@@ -13,7 +12,6 @@ VAR v,v2,v3:integer;
       MOV AX,[EBP+OFFSET v]
       MOV v3,AX
     END;
-  END;
 
 BEGIN
   v:=5;
diff --git a/tests/webtbs/tbug866.pp b/tests/webtbs/tbug866.pp
new file mode 100644
index 0000000000..09f98e2a75
--- /dev/null
+++ b/tests/webtbs/tbug866.pp
@@ -0,0 +1,17 @@
+{$mode objfpc}
+Type
+     ts = set of (tse);
+     ts2 = set of (t1,t2);
+     enum3 = (tm1:=-1,t0,tp1);
+     ts3 = set of t0 .. tp1;
+ var
+    f:ts;
+    f2 : ts2;
+    f3 : ts3;
+
+begin
+ f2:=f2+[t2];
+ f2:=f2+[t1];
+ f:=f+[tse]; // compiler says that set elements are not compatible
+ { f3:=[tm1];}
+end.
\ No newline at end of file
diff --git a/tests/webtbs/tbug869.pp b/tests/webtbs/tbug869.pp
new file mode 100644
index 0000000000..6700374792
--- /dev/null
+++ b/tests/webtbs/tbug869.pp
@@ -0,0 +1,24 @@
+program prueba;
+uses crt;
+var
+ resultado,exponente:integer;
+begin
+ exponente := 3;
+ resultado := -1 ** exponente;
+ writeln (resultado);
+ if resultado<>-1 then
+   Halt(1);
+ exponente := 4;
+ resultado := -(1 ** exponente);
+ writeln (resultado);
+ if resultado<>-1 then
+   Halt(1);
+ resultado := (-1) ** exponente;
+ writeln (resultado);
+ if resultado<>1 then
+   Halt(1);
+ resultado := -1 ** exponente;
+ writeln (resultado);
+ if resultado<>-1 then
+   Halt(1);
+end.
\ No newline at end of file
diff --git a/tests/webtbs/tbug870.pp b/tests/webtbs/tbug870.pp
new file mode 100644
index 0000000000..d62a1aac2e
--- /dev/null
+++ b/tests/webtbs/tbug870.pp
@@ -0,0 +1,21 @@
+{$mode objfpc}
+uses sysUtils;
+
+ type
+      t = object
+       f:integer;
+       function m: AnsiString;
+      end;
+
+ function t.m: AnsiString;
+ begin
+  result:=IntToStr(f);
+ end;
+
+ var ti:t;
+
+begin
+ ti.f:=1; // no vmt for t - constructor call is not needed
+ writeln(format('%s', [ti.m])); // this works
+ writeln(format('%s, %s', [ti.m, ti.m])); // this does not - the same story with classes
+end.
\ No newline at end of file