tests

test/decodeInfo.js

+'use strict'
+var tape = require('tape')
+var compiler = require('solc')
+var index = require('../src/index')
+
+tape('solidity', function (t) {
+  t.test('astHelper, decodeInfo', function (st) {
+    var output = compiler.compile(contracts, 0)
+
+    var stateDec = index.solidity.astHelper.extractStateVariables('contractUint', output.sources)
+    var decodeInfo = index.solidity.decodeInfo.decode(stateDec[0].attributes.type, stateDec)
+    checkDecodeInfo(st, decodeInfo, false, 1, 'uint8', 'uint')
+    decodeInfo = index.solidity.decodeInfo.decode(stateDec[2].attributes.type, stateDec)
+    checkDecodeInfo(st, decodeInfo, false, 32, 'uint256', 'uint')
+    decodeInfo = index.solidity.decodeInfo.decode(stateDec[3].attributes.type, stateDec)
+    checkDecodeInfo(st, decodeInfo, false, 32, 'uint256', 'uint')
+
+    stateDec = index.solidity.astHelper.extractStateVariables('contractStructAndArray', output.sources)
+    decodeInfo = index.solidity.decodeInfo.decode(stateDec[1].attributes.type, stateDec)
+    checkDecodeInfo(st, decodeInfo, true, 64, 'struct structDef', 'struct')
+    decodeInfo = index.solidity.decodeInfo.decode(stateDec[2].attributes.type, stateDec)
+    checkDecodeInfo(st, decodeInfo, true, 192, 'struct structDef[3]', 'arrayType')
+    decodeInfo = index.solidity.decodeInfo.decode(stateDec[3].attributes.type, stateDec)
+    checkDecodeInfo(st, decodeInfo, true, 48, 'bytes12[4]', 'arrayType')
+
+    stateDec = index.solidity.astHelper.extractStateVariables('contractArray', output.sources)
+    decodeInfo = index.solidity.decodeInfo.decode(stateDec[0].attributes.type, stateDec)
+    checkDecodeInfo(st, decodeInfo, true, 4 * 5, 'uint32[5]', 'arrayType')
+    decodeInfo = index.solidity.decodeInfo.decode(stateDec[1].attributes.type, stateDec)
+    checkDecodeInfo(st, decodeInfo, true, 32, 'int8[]', 'arrayType')
+    decodeInfo = index.solidity.decodeInfo.decode(stateDec[2].attributes.type, stateDec)
+    checkDecodeInfo(st, decodeInfo, true, 4 * 32, 'int16[][3][][4]', 'arrayType')
+    st.end()
+  })
+})
+
+function checkDecodeInfo (st, decodeInfo, freeSlot, storageBytes, typeName, name) {
+  st.equal(decodeInfo.needsFreeStorageSlot, freeSlot)
+  st.equal(decodeInfo.storageBytes, storageBytes)
+  st.equal(decodeInfo.typeName, typeName)
+  st.equal(decodeInfo.name, name)
+}
+
+var contracts = `
+    contract baseContract {
+        uint8 u;
+    }
+    
+    contract contractUint is baseContract {
+        uint256 ui;
+        uint ui1;
+    }    
+    
+    contract contractStructAndArray {       
+        struct structDef {
+            uint8 ui;
+            string str;
+        }
+        structDef structDec;
+        structDef[3] array;
+        bytes12[4] bytesArray;
+    }
+    
+    contract contractArray {
+        uint32[5] i32st;
+        int8[] i8dyn;
+        int16[][3][][4] i16dyn;    
+    }  
+`

test/tests.js

@@ -7,3 +7,4 @@ require('./astwalker.js')
 require('./disassembler.js')
 require('./eventManager.js')
 require('./sourceMappingDecoder.js')
+require('./decodeInfo.js')