diff --git a/packages/mermaid/src/diagrams/block/parser/block.spec.ts b/packages/mermaid/src/diagrams/block/parser/block.spec.ts
index 08b36c744..4713b57c0 100644
--- a/packages/mermaid/src/diagrams/block/parser/block.spec.ts
+++ b/packages/mermaid/src/diagrams/block/parser/block.spec.ts
@@ -28,7 +28,19 @@ describe('Sankey diagram', function () {
       `;
 
       block.parse(str);
+      // Todo: DB check that the we have two nodes and that the root block has two columns
     });
+    it('a diagram with multiple nodes', async () => {
+      const str = `block-beta
+          id1
+          id2
+          id3
+      `;
+
+      block.parse(str);
+      // Todo: DB check that the we have two nodes and that the root block has three columns
+    });
+
     it('a node with a square shape and a label', async () => {
       const str = `block-beta
           id["A label"]
@@ -43,43 +55,155 @@ describe('Sankey diagram', function () {
 
       block.parse(str);
     });
-    // it('a diagram with column statements', async () => {
-    //   const str = `block-beta
-    //       columns 1
-    //       block1["Block 1"]
-    //   `;
+    it.skip('a diagram with column statements', async () => {
+      const str = `block-beta
+          columns 1
+          block1["Block 1"]
+      `;
 
-    //   block.parse(str);
-    // });
-    // it('a diagram with block hierarchies', async () => {
-    //   const str = `block-beta
-    //     columns 1
-    //     block1[Block 1]
+      block.parse(str);
+      // Todo: DB check that the we have one block and that the root block has one column
+    });
 
-    //     block
-    //       columns 2
-    //       block2[Block 2]
-    //       block3[Block 3]
-    //     end %% End the compound block
-    //   `;
+    it.skip('blocks next to each other', async () => {
+      const str = `block-beta
+        block
+          columns 2
+          block1["Block 1"]
+          block2["Block 2"]
+        `;
 
-    //   block.parse(str);
-    // });
-    // it('a diagram with differernt column values in different blocks', async () => {
-    //   const str = `block-beta
-    //     columns 1
-    //     block1[Block 1]
+      block.parse(str);
 
-    //     block
-    //       columns 2
-    //       block2[Block 2]
-    //       block3[Block 3]
-    //     end %% End the compound block
-    //   `;
+      // Todo: DB check that the we have two blocks and that the root block has two columns
+    });
 
-    //   block.parse(str);
+    it.skip('blocks on top of each other', async () => {
+      const str = `block-beta
+        block
+          columns 1
+          block1["Block 1"]
+          block2["Block 2"]
+        `;
 
-    //   // Todo check that the different blocks have different column values
-    // });
+      block.parse(str);
+
+      // Todo: DB check that the we have two blocks and that the root block has one column
+    });
+
+    it.skip('compound blocks', async () => {
+      const str = `block
+          block
+            columns 2
+            block2["Block 2"]
+            block3["Block 3"]
+          end %% End the compound block
+        `;
+
+      block.parse(str);
+    });
+    it.skip('compound blocks with title', async () => {
+      const str = `block
+          block compoundBlock["Compound block"]
+            columns 1
+            block2["Block 1"]
+          end
+        `;
+
+      block.parse(str);
+    });
+    it.skip('blocks mixed with compound blocks', async () => {
+      const str = `block
+          columns 1
+          block1["Block 1"]
+
+          block
+            columns 2
+            block2["Block 2"]
+            block3["Block 3"]
+          end %% End the compound block
+        `;
+
+      block.parse(str);
+    });
+
+    it.skip('Arrow blocks', async () => {
+      const str = `block
+        columns 3
+        block1["Block 1"]
+        blockArrow
+        block2["Block 2"]`;
+
+      block.parse(str);
+    });
+    it.skip('Arrow blocks with multiple points', async () => {
+      const str = `block-beta
+        columns 1
+        A
+        blockArrow(1,3)
+        block
+          columns 3
+            B
+            C
+            D
+        end`;
+
+      block.parse(str);
+    });
+    it.skip('blocks with different widths', async () => {
+      const str = `block-beta
+        columns 3
+        one["One Slot"]
+        two["Two slots"]:2
+        `;
+
+      block.parse(str);
+    });
+    it.skip('empty blocks', async () => {
+      const str = `block-beta
+        columns 3
+        space
+        middle["In the middle"]
+        `;
+
+      block.parse(str);
+    });
+    it.skip('classDef statements applied to a block', async () => {
+      const str = `block-beta
+        classDef black color:#ffffff, fill:#000000;
+
+        mc["Memcache"]:::black
+        `;
+
+      block.parse(str);
+    });
+    it.skip('classDef statements applied to a block with a width', async () => {
+      const str = `block-beta
+        classDef black color:#ffffff, fill:#000000;
+        columns 2
+        mc["Memcache"]:2::black
+        `;
+
+      block.parse(str);
+    });
+
+    it.skip('classDef statements', async () => {
+      const str = `block-beta
+        classDef black color:#ffffff, fill:#000000;
+
+        block DataServices["Data Services"]
+          columns H
+          block Relational
+            mssql["Microsoft SQL<br/>Server"]
+          end
+          block Tabular
+            columns 3
+            gds["Google Data Store"]:1
+            mc["Memcache"]:2:::black
+          end
+        end`;
+
+      block.parse(str);
+    });
   });
 });