diff --git a/tests/data/playground/sql/case-when.json b/tests/data/playground/sql/case-when.json
deleted file mode 100644
index f2b9d42..0000000
--- a/tests/data/playground/sql/case-when.json
+++ /dev/null
@@ -1,326 +0,0 @@
-{
-  "ast": {
-    "eClass": "https://strumenta.com/kolasu/v1#//Result",
-    "root": {
-      "eClass": "#//Script",
-      "position": {
-        "eClass": "https://strumenta.com/kolasu/v1#//Position",
-        "start": {
-          "eClass": "https://strumenta.com/kolasu/v1#//Point",
-          "line": 1,
-          "column": 0
-        },
-        "end": {
-          "eClass": "https://strumenta.com/kolasu/v1#//Point",
-          "line": 10,
-          "column": 0
-        }
-      },
-      "statements": [
-        {
-          "eClass": "#//SelectStatement",
-          "position": {
-            "eClass": "https://strumenta.com/kolasu/v1#//Position",
-            "start": {
-              "eClass": "https://strumenta.com/kolasu/v1#//Point",
-              "line": 1,
-              "column": 0
-            },
-            "end": {
-              "eClass": "https://strumenta.com/kolasu/v1#//Point",
-              "line": 7,
-              "column": 6
-            }
-          },
-          "query": {
-            "eClass": "#//SelectQuery",
-            "position": {
-              "eClass": "https://strumenta.com/kolasu/v1#//Position",
-              "start": {
-                "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                "line": 1,
-                "column": 0
-              },
-              "end": {
-                "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                "line": 7,
-                "column": 6
-              }
-            },
-            "projections": [
-              {
-                "eClass": "#//ExpressionProjection",
-                "position": {
-                  "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                  "start": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 2,
-                    "column": 0
-                  },
-                  "end": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 2,
-                    "column": 4
-                  }
-                },
-                "expression": {
-                  "eClass": "#//ColumnExpression",
-                  "position": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                    "start": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 2,
-                      "column": 0
-                    },
-                    "end": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 2,
-                      "column": 4
-                    }
-                  },
-                  "name": "ROOT"
-                }
-              },
-              {
-                "eClass": "#//ExpressionProjection",
-                "position": {
-                  "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                  "start": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 2,
-                    "column": 5
-                  },
-                  "end": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 2,
-                    "column": 8
-                  }
-                },
-                "expression": {
-                  "eClass": "#//ColumnExpression",
-                  "position": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                    "start": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 2,
-                      "column": 5
-                    },
-                    "end": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 2,
-                      "column": 8
-                    }
-                  },
-                  "name": "LEV"
-                }
-              },
-              {
-                "eClass": "#//ExpressionProjection",
-                "position": {
-                  "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                  "start": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 2,
-                    "column": 9
-                  },
-                  "end": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 2,
-                    "column": 12
-                  }
-                },
-                "expression": {
-                  "eClass": "#//ColumnExpression",
-                  "position": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                    "start": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 2,
-                      "column": 9
-                    },
-                    "end": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 2,
-                      "column": 12
-                    }
-                  },
-                  "name": "OBJ"
-                }
-              },
-              {
-                "eClass": "#//ExpressionProjection",
-                "position": {
-                  "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                  "start": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 2,
-                    "column": 13
-                  },
-                  "end": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 2,
-                    "column": 17
-                  }
-                },
-                "expression": {
-                  "eClass": "#//ColumnExpression",
-                  "position": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                    "start": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 2,
-                      "column": 13
-                    },
-                    "end": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 2,
-                      "column": 17
-                    }
-                  },
-                  "name": "LinK"
-                }
-              },
-              {
-                "eClass": "#//ExpressionProjection",
-                "position": {
-                  "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                  "start": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 2,
-                    "column": 18
-                  },
-                  "end": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 2,
-                    "column": 22
-                  }
-                },
-                "expression": {
-                  "eClass": "#//ColumnExpression",
-                  "position": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                    "start": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 2,
-                      "column": 18
-                    },
-                    "end": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 2,
-                      "column": 22
-                    }
-                  },
-                  "name": "PaTH"
-                }
-              },
-              {
-                "eClass": "#//ExpressionProjection",
-                "position": {
-                  "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                  "start": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 2,
-                    "column": 23
-                  },
-                  "end": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 2,
-                    "column": 28
-                  }
-                },
-                "expression": {
-                  "eClass": "#//ColumnExpression",
-                  "position": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                    "start": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 2,
-                      "column": 23
-                    },
-                    "end": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 2,
-                      "column": 28
-                    }
-                  },
-                  "name": "cycle"
-                }
-              },
-              {
-                "eClass": "#//ExpressionProjection",
-                "position": {
-                  "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                  "start": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 3,
-                    "column": 4
-                  },
-                  "end": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 6,
-                    "column": 15
-                  }
-                },
-                "expression": {
-                  "eClass": "#null/ErrorNode",
-                  "position": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                    "start": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 3,
-                      "column": 4
-                    },
-                    "end": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 6,
-                      "column": 15
-                    }
-                  }
-                }
-              }
-            ],
-            "relations": [
-              {
-                "eClass": "#//TableRelation",
-                "position": {
-                  "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                  "start": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 7,
-                    "column": 5
-                  },
-                  "end": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                    "line": 7,
-                    "column": 6
-                  }
-                },
-                "table": {
-                  "eClass": "#//TableRef",
-                  "position": {
-                    "eClass": "https://strumenta.com/kolasu/v1#//Position",
-                    "start": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 7,
-                      "column": 5
-                    },
-                    "end": {
-                      "eClass": "https://strumenta.com/kolasu/v1#//Point",
-                      "line": 7,
-                      "column": 6
-                    }
-                  },
-                  "name": "T"
-                }
-              }
-            ]
-          }
-        }
-      ]
-    }
-  },
-  "code": "select \nROOT,LEV,OBJ,LinK,PaTH,cycle,\n    case\n    when (LEV - LEaD(LEV) over (order by orD)) < 0 then 0\n    else 1\n    end is_LEaF\nfrom T\n\n\n",
-  "name": "case-when",
-  "astBuildingTime": 181.41455999016762,
-  "parsingTime": 165.1825089752674
-}
diff --git a/tests/strumenta-playground.test.ts b/tests/strumenta-playground.test.ts
index 28e0b0e..2e74d6c 100644
--- a/tests/strumenta-playground.test.ts
+++ b/tests/strumenta-playground.test.ts
@@ -56,53 +56,6 @@ describe('Strumenta Playground', function() {
             });
         });
     });
-
-    it("SQL case-when",
-        function () {
-            this.timeout(0);
-
-            const path = "tests/data/playground/sql/metamodel.json";
-            const metamodel =
-                JSON.parse(fs.readFileSync(path).toString());
-            const loader = new ParserTraceLoader({
-                name: "sql",
-                uri: `file://${path}`,
-                metamodel: metamodel
-            });
-            let code = fs.readFileSync(
-                "tests/data/playground/sql/case-when.json").toString();
-            let trace = loader.loadParserTrace(code, "sql");
-
-            const rootNode = trace.rootNode;
-            expect(rootNode.getType()).to.eql("com.strumenta.sas.ast.SourceFile");
-            expect(rootNode.getSimpleType()).to.eql("SourceFile");
-            expect(rootNode.getPosition()).to.eql(pos(12, 0,369, 0));
-            let foundNode = findByPosition(rootNode, pos(12, 0,369, 0)) as ParserNode;
-            expect(foundNode.eo == rootNode.eo).to.be.true;
-            const descNode = rootNode.children[10].children[7] as ParserNode;
-            foundNode = findByPosition(descNode, descNode.position!) as ParserNode;
-            expect(foundNode.eo == descNode.eo).to.be.true;
-            expect(rootNode.getChildren().length).to.equal(18);
-            expect(rootNode.getChildren("statementsAndDeclarations").length).to.equal(18);
-            // foundNode = findByPosition(rootNode, pos(20, 28, 20, 29)) as ParserNode;
-            // expect(foundNode).not.to.be.undefined;
-            const child = rootNode.getChildren("statementsAndDeclarations")[0];
-            expect(child.getRole()).to.equal("statementsAndDeclarations");
-            expect(child.getAttributes()).to.eql({ name: "importSheets" });
-            expect(trace.issues.length).to.equal(1);
-            expect(trace.issues[0].type).to.equal(IssueType.SEMANTIC);
-            expect(trace.issues[0].message).to.equal("Unparsed macro code: `filename `");
-            expect(trace.issues[0].severity).to.equal(IssueSeverity.WARNING);
-            expect(trace.issues[0].position).to.eql(pos(43, 8,43, 17));
-
-            code = fs.readFileSync(
-                "tests/data/playground/sas/open-source_sas-cert-prep-data_professional-prep-guide_cre8permdata.sas.json").toString();
-            trace = loader.loadParserTrace(code, "sas");
-            expect(trace).not.to.be.undefined;
-            expect(trace.rootNode).not.to.be.undefined;
-            expect(trace.rootNode.position).to.eql(pos(15, 0, 10161, 0));
-            expect(trace.issues).to.eql([]);
-        });
 });
 
 class TestParser extends EcoreEnabledParser<NodeSubclass, any, any, any> {