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remix-project/test/astwalker.js

61 lines
2.1 KiB

'use strict'
var tape = require('tape')
var AstWalker = require('../src/util/astWalker')
var node = require('./resources/ast')
tape('ASTWalker', function (t) {
t.test('ASTWalker.walk', function (st) {
st.plan(24)
var astwalker = new AstWalker()
astwalker.walk(node.ast.legacyAST, function (node) {
if (node.name === 'ContractDefinition') {
checkContract(st, node)
}
if (node.name === 'FunctionDefinition') {
checkSetFunction(st, node)
}
return true
})
var callback = {}
callback.FunctionDefinition = function (node) {
st.equal(node.name, 'FunctionDefinition')
st.equal(node.attributes.name === 'set' || node.attributes.name === 'get', true)
return true
}
astwalker.walk(node.ast.legacyAST, callback)
})
})
function checkContract (st, node) {
st.equal(node.attributes.name, 'test')
st.equal(node.children[0].attributes.name, 'x')
st.equal(node.children[0].attributes.type, 'int256')
st.equal(node.children[1].attributes.name, 'y')
st.equal(node.children[1].attributes.type, 'int256')
st.equal(node.children[2].name, 'FunctionDefinition')
st.equal(node.children[2].attributes.constant, false)
st.equal(node.children[2].attributes.name, 'set')
st.equal(node.children[2].attributes.public, true)
}
function checkSetFunction (st, node) {
if (node.attributes.name === 'set') {
st.equal(node.children[0].name, 'ParameterList')
st.equal(node.children[1].name, 'ParameterList')
st.equal(node.children[2].name, 'Block')
st.equal(node.children[2].children[1].name, 'ExpressionStatement')
checkExpressionStatement(st, node.children[2].children[0])
}
}
function checkExpressionStatement (st, node) {
st.equal(node.children[0].name, 'Assignment')
st.equal(node.children[0].attributes.operator, '=')
st.equal(node.children[0].attributes.type, 'int256')
st.equal(node.children[0].children[0].name, 'Identifier')
st.equal(node.children[0].children[0].attributes.value, 'x')
st.equal(node.children[0].children[1].name, 'Identifier')
st.equal(node.children[0].children[1].attributes.value, '_x')
}