discover-dapps/test/dappstore_spec.js

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const TestUtils = require("../utils/testUtils");
const DAppStore = require('Embark/contracts/DAppStore');
const SNT = embark.require('Embark/contracts/SNT');
config({
deployment: {
accounts: [
{
mnemonic: "foster gesture flock merge beach plate dish view friend leave drink valley shield list enemy",
balance: "5 ether",
numAddresses: "10"
}
]
},
contracts: {
"MiniMeToken": { "deploy": false },
"MiniMeTokenFactory": { },
"SNT": {
"instanceOf": "MiniMeToken",
"args": [
"$MiniMeTokenFactory",
"0x0000000000000000000000000000000000000000",
0,
"TestMiniMeToken",
18,
"SNT",
true
]
},
"DAppStore": {
args: [ "$SNT" ]
},
"TestBancorFormula": { }
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}
}, (_err, web3_accounts) => {
accounts = web3_accounts
});
contract("DAppStore", function () {
this.timeout(0);
it("should set max and safeMax values correctly", async function () {
let resultMax = await DAppStore.methods.max().call();
let resultSafeMax = await DAppStore.methods.safeMax().call();
let expectedMax = 3470483788 * 588 / 1000000;
let expectedSafeMax = expectedMax * 77 / 100 - 1;
assert.strictEqual(parseInt(resultMax, 10), Math.round(expectedMax));
assert.strictEqual(parseInt(resultSafeMax, 10), Math.round(expectedSafeMax));
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});
it("should create a new DApp and initialise it correctly", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let amount = 10000;
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await SNT.methods.generateTokens(accounts[0], amount).send();
const encodedCall = DAppStore.methods.createDApp(id,amount).encodeABI();
await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[0]});
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let receipt = await DAppStore.methods.dapps(0).call();
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let developer = accounts[0];
assert.strictEqual(developer, receipt.developer);
assert.strictEqual(id, receipt.id);
// Check the DApp Store actually receives the SNT!
let bal_receipt = await SNT.methods.balanceOf(DAppStore.options.address).call();
assert.strictEqual(amount, parseInt(bal_receipt, 10));
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// Having received the SNT, check that it updates the particular DApp's storage values
assert.strictEqual(amount, parseInt(receipt.balance, 10));
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let max = await DAppStore.methods.max().call();
let decimals = await DAppStore.methods.decimals().call();
let rate = Math.round(decimals - (amount * decimals/max));
assert.strictEqual(rate, parseInt(receipt.rate, 10));
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let available = amount * rate;
assert.strictEqual(available, parseInt(receipt.available, 10));
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let votes_minted = Math.round((available/decimals) ** (decimals/rate));
assert.strictEqual(votes_minted, parseInt(receipt.votesMinted, 10));
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assert.strictEqual(0, parseInt(receipt.votesCast, 10));
assert.strictEqual(amount, parseInt(receipt.effectiveBalance, 10));
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})
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it("should not create a new DApp with the same ID", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let amount = 1000;
await SNT.methods.generateTokens(accounts[0], amount).send();
const encodedCall = DAppStore.methods.createDApp(id,amount).encodeABI();
try {
await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[0]});
assert.fail('should have reverted before');
} catch (error) {
TestUtils.assertJump(error);
}
})
it("should not create a new DApp when exceeding the ceiling or staking nothing", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let initial = await DAppStore.methods.max().call();
let amount = parseInt(initial, 10);
let amount0 = 0;
await SNT.methods.generateTokens(accounts[0], amount).send();
const encodedCall = DAppStore.methods.createDApp(id,amount).encodeABI();
try {
await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[0]});
assert.fail('should have reverted before');
} catch (error) {
TestUtils.assertJump(error);
}
const encodedCall0 = DAppStore.methods.createDApp(id,amount0).encodeABI();
try {
await SNT.methods.approveAndCall(DAppStore.options.address, amount0, encodedCall0).send({from: accounts[0]});
assert.fail('should have reverted before');
} catch (error) {
TestUtils.assertJump(error);
}
})
it("should set the metadata correctly", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let metadata = "0x0000000000000000000000000000000000000000000000000000000000000001";
await DAppStore.methods.setMetadata(id,metadata).send({ from: accounts[0] });
let receipt = await DAppStore.methods.dapps(0).call();
assert.strictEqual(metadata, receipt.metadata);
})
it("should update the metadata correctly", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let metadata = "0x0000000000000000000000000000000000000000000000000000000000000002";
await DAppStore.methods.setMetadata(id,metadata).send({ from: accounts[0] });
let receipt = await DAppStore.methods.dapps(0).call();
assert.strictEqual(metadata, receipt.metadata);
})
it("should not let anyone other than the developer update the metadata", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let metadata_actual = "0x0000000000000000000000000000000000000000000000000000000000000002";
let metadata = "0x0000000000000000000000000000000000000000000000000000000000000003";
try {
await DAppStore.methods.setMetadata(id,metadata).send({ from: accounts[1] });
assert.fail('should have reverted before');
} catch (error) {
TestUtils.assertJump(error);
}
let receipt = await DAppStore.methods.dapps(0).call();
assert.strictEqual(metadata_actual, receipt.metadata);
})
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it("should handle first upvote correctly", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let amount = 100;
let initial = await DAppStore.methods.dapps(0).call();
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let before = await SNT.methods.balanceOf(DAppStore.options.address).call();
// This is the special case where no downvotes have yet been cast
let up_effect = await DAppStore.methods.upvoteEffect(id,amount).call();
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await SNT.methods.generateTokens(accounts[0], amount).send();
const encodedCall = DAppStore.methods.upvote(id,amount).encodeABI();
await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[0]});
let receipt = await DAppStore.methods.dapps(0).call();
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let developer = accounts[0];
assert.strictEqual(developer, receipt.developer);
assert.strictEqual(id, receipt.id);
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// Check the DApp Store actually receives the SNT!
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let after = await SNT.methods.balanceOf(DAppStore.options.address).call();
let bal_effect = parseInt(after, 10) - parseInt(before, 10);
assert.strictEqual(bal_effect, amount);
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// Having received the SNT, check that it updates the particular DApp's storage values
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let upvotedBalance = parseInt(initial.balance, 10) + amount
assert.strictEqual(upvotedBalance, parseInt(receipt.balance, 10));
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let max = await DAppStore.methods.max().call();
let decimals = await DAppStore.methods.decimals().call();
let rate = Math.round(decimals - (upvotedBalance * decimals/max));
assert.strictEqual(rate, parseInt(receipt.rate, 10));
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let available = upvotedBalance * rate;
assert.strictEqual(available, parseInt(receipt.available, 10));
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let votes_minted = Math.round((available/decimals) ** (decimals/rate));
assert.strictEqual(votes_minted, parseInt(receipt.votesMinted, 10));
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// Only true for upvotes made when there are no downvotes
assert.strictEqual(0, parseInt(receipt.votesCast, 10));
// The effective_balance should match upvoteEffect + initial.effectiveBalance
let e_balance = parseInt(up_effect, 10) + parseInt(initial.effectiveBalance, 10);
assert.strictEqual(e_balance, parseInt(receipt.effectiveBalance, 10));
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})
it("should not let you upvote without spending SNT", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let amount = 0;
await SNT.methods.generateTokens(accounts[0], 10000).send();
const encodedCall = DAppStore.methods.upvote(id,amount).encodeABI();
try {
await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[0]});
assert.fail('should have reverted before');
} catch (error) {
TestUtils.assertJump(error);
}
})
it("should not let you upvote by an amount that exceeds the ceiling", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let initial = await DAppStore.methods.max().call();
let amount = parseInt(initial, 10);
await SNT.methods.generateTokens(accounts[0], amount).send();
const encodedCall = DAppStore.methods.upvote(id,amount).encodeABI();
try {
await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[0]});
assert.fail('should have reverted before');
} catch (error) {
TestUtils.assertJump(error);
}
})
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it("should handle first downvote correctly", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let cost = await DAppStore.methods.downvoteCost(id).call()
let amount = parseInt(cost.c, 10);
let developer = accounts[0];
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let initial = await DAppStore.methods.dapps(0).call();
let bal_before = await SNT.methods.balanceOf(developer).call();
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await SNT.methods.generateTokens(accounts[1], amount).send();
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const encodedCall = DAppStore.methods.downvote(id,amount).encodeABI();
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await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[1]});
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let receipt = await DAppStore.methods.dapps(0).call();
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assert.strictEqual(developer, receipt.developer);
assert.strictEqual(id, receipt.id);
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// Check the developer actually receives the SNT!
let bal_after = await SNT.methods.balanceOf(developer).call();
let bal_effect = parseInt(bal_after, 10) - parseInt(bal_before, 10)
assert.strictEqual(bal_effect, amount);
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// Balance, rate, and votes_minted remain unchanged for downvotes
assert.strictEqual(initial.balance, receipt.balance);
assert.strictEqual(initial.rate, receipt.rate);
assert.strictEqual(initial.votesMinted, receipt.votesMinted);
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let available = parseInt(initial.available, 10) - parseInt(cost.c, 10);
assert.strictEqual(available, parseInt(receipt.available, 10));
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// This is only true for the first downvote
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assert.strictEqual(parseInt(receipt.votesCast, 10), parseInt(cost.vR, 10));
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let e_balance = parseInt(initial.effectiveBalance, 10) - parseInt(cost.b, 10);
assert.strictEqual(e_balance, parseInt(receipt.effectiveBalance, 10));
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})
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it("should handle second downvote correctly", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let cost = await DAppStore.methods.downvoteCost(id).call()
let amount = parseInt(cost.c, 10);
let developer = accounts[0];
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let initial = await DAppStore.methods.dapps(0).call();
let bal_before = await SNT.methods.balanceOf(developer).call();
await SNT.methods.generateTokens(accounts[1], amount).send();
const encodedCall = DAppStore.methods.downvote(id,amount).encodeABI();
await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[1]});
let receipt = await DAppStore.methods.dapps(0).call();
assert.strictEqual(developer, receipt.developer);
assert.strictEqual(id, receipt.id);
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// Check the developer actually receives the SNT!
let bal_after = await SNT.methods.balanceOf(developer).call();
let bal_effect = parseInt(bal_after, 10) - parseInt(bal_before, 10)
assert.strictEqual(bal_effect, amount);
// Balance, rate, and votes_minted remain unchanged for downvotes
assert.strictEqual(initial.balance, receipt.balance);
assert.strictEqual(initial.rate, receipt.rate);
assert.strictEqual(initial.votesMinted, receipt.votesMinted);
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let available = parseInt(initial.available, 10) - parseInt(cost.c, 10);
assert.strictEqual(available, parseInt(receipt.available, 10));
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let eff_v_cast = parseInt(receipt.votesCast, 10) - parseInt(initial.votesCast, 10);
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assert.strictEqual(eff_v_cast, parseInt(cost.vR, 10));
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let e_balance = parseInt(initial.effectiveBalance, 10) - parseInt(cost.b, 10);
assert.strictEqual(e_balance, parseInt(receipt.effectiveBalance, 10));
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})
it("should not let you downvote by the wrong amount", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let amount_above = 10000;
let amount_below = 100;
await SNT.methods.generateTokens(accounts[1], amount_above + amount_below).send();
const encodedCall = DAppStore.methods.downvote(id,amount_above).encodeABI();
try {
await SNT.methods.approveAndCall(DAppStore.options.address, amount_above, encodedCall).send({from: accounts[1]});
assert.fail('should have reverted before');
} catch (error) {
TestUtils.assertJump(error);
}
const encodedCall1 = DAppStore.methods.downvote(id,amount_below).encodeABI();
try {
await SNT.methods.approveAndCall(DAppStore.options.address, amount_below, encodedCall1).send({from: accounts[1]});
assert.fail('should have reverted before');
} catch (error) {
TestUtils.assertJump(error);
}
})
it("should handle upvotes correctly when votes have been cast", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let amount = 500;
let initial = await DAppStore.methods.dapps(0).call();
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let before = await SNT.methods.balanceOf(DAppStore.options.address).call();
let up_effect = await DAppStore.methods.upvoteEffect(id,amount).call();
await SNT.methods.generateTokens(accounts[0], amount).send();
const encodedCall = DAppStore.methods.upvote(id,amount).encodeABI();
await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[0]});
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let receipt = await DAppStore.methods.dapps(0).call();
let developer = accounts[0];
assert.strictEqual(developer, receipt.developer);
assert.strictEqual(id, receipt.id);
// Check the DApp Store actually receives the SNT!
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let after = await SNT.methods.balanceOf(DAppStore.options.address).call();
let bal_effect = parseInt(after, 10) - parseInt(before, 10);
assert.strictEqual(bal_effect, amount);
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// Having received the SNT, check that it updates the particular DApp's storage values
let upvotedBalance = parseInt(initial.balance, 10) + amount
assert.strictEqual(upvotedBalance, parseInt(receipt.balance, 10));
let max = await DAppStore.methods.max().call();
let decimals = await DAppStore.methods.decimals().call();
let rate = Math.round(decimals - (upvotedBalance * decimals/max));
assert.strictEqual(rate, parseInt(receipt.rate, 10));
let available = upvotedBalance * rate;
assert.strictEqual(available, parseInt(receipt.available, 10));
let votes_minted = parseInt(receipt.votesMinted, 10);
// Votes have been cast by this stage, so we need to check how many there are
// and confirm that `upvote` still calculates the effective_balance correctly
let votes_cast = parseInt(receipt.votesCast, 10);
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let e_balance = Math.round(upvotedBalance - ((votes_cast*rate/decimals)*(available/decimals/votes_minted)));
assert.strictEqual(e_balance, parseInt(receipt.effectiveBalance, 10));
// The effective_balance should also match upvoteEffect + initial.effectiveBalance
let e_balance_2 = parseInt(up_effect, 10) + parseInt(initial.effectiveBalance, 10);
assert.strictEqual(e_balance_2, parseInt(receipt.effectiveBalance, 10));
})
it("should return correct upvoteEffect for use in UI", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let amount = 10;
let receipt = await DAppStore.methods.dapps(0).call();
let effect = await DAppStore.methods.upvoteEffect(id,amount).call();
// Mock receiving the SNT
let mBalance = parseInt(receipt.balance, 10) + amount
let max = await DAppStore.methods.max().call();
let decimals = await DAppStore.methods.decimals().call();
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let mRate = Math.round(decimals - (mBalance * decimals/max));
let mAvailable = mBalance * mRate;
let mVMinted = Math.round((mAvailable/decimals) ** (decimals/mRate));
// Votes have been cast by this stage, so we need to check how many there are
// and confirm that `upvoteEffect` mocks the effect correctly
let votes_cast = parseInt(receipt.votesCast, 10);
let mEBalance = Math.round(mBalance - ((votes_cast*mRate/decimals)*(mAvailable/decimals/mVMinted)));
let effect_calc = mEBalance - receipt.effectiveBalance;
// Confirm that what is returned is (mEBalance - d.effective_balance)
assert.strictEqual(effect_calc, parseInt(effect, 10));
})
it("should throw already in upvoteEffect if you exceed the ceiling", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let initial = await DAppStore.methods.max().call();
let amount = parseInt(initial, 10);
try {
await DAppStore.methods.upvoteEffect(id,amount).call();
assert.fail('should have reverted before');
} catch (error) {
TestUtils.assertJump(error);
}
})
it("should handle withdrawals correctly", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
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let amount = 100;
let initial = await DAppStore.methods.dapps(0).call();
let before = await SNT.methods.balanceOf(DAppStore.options.address).call();
let before_dev = await SNT.methods.balanceOf(accounts[0]).call();
let receipt_obj = await DAppStore.methods.withdraw(id,amount).send({from: accounts[0]});
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let receipt = receipt_obj.events.Withdraw.returnValues;
assert.strictEqual(id, receipt.id);
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// Check the DApp Store actually sends SNT to the developer
let after = await SNT.methods.balanceOf(DAppStore.options.address).call();
let after_dev = await SNT.methods.balanceOf(accounts[0]).call();
let difference = parseInt(before, 10) - parseInt(after, 10);
let difference_dev = parseInt(after_dev, 10) - parseInt(before_dev, 10);
assert.strictEqual(difference, amount)
assert.strictEqual(difference_dev, amount)
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// Recalculate e_balance manually and check it matches what is returned
let max = await DAppStore.methods.max().call();
let decimals = await DAppStore.methods.decimals().call();
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let balance = parseInt(initial.balance, 10) - amount
let rate = Math.round(decimals - (balance * decimals/max));
let available = Math.round(balance * rate);
let v_minted = Math.round((available/decimals) ** (decimals/rate));
let v_cast = parseInt(initial.votesCast, 10);
let e_balance = Math.ceil(balance - ((v_cast*rate/decimals)*(available/decimals/v_minted)));
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let effective_balance = parseInt(receipt.newEffectiveBalance, 10);
// We begin to run into precision limitations in the BancorFormula here.
// The higher the amount, the less accurate it becomes. Hence Math.ceil() for now.
assert.strictEqual(e_balance, effective_balance);
// Having withdrawn the SNT, check that it updates the particular DApp's storage values properly
let check = await DAppStore.methods.dapps(0).call();
let withdrawnBalance = parseInt(initial.balance, 10) - amount
assert.strictEqual(parseInt(check.balance, 10), withdrawnBalance);
assert.strictEqual(parseInt(check.rate, 10), rate);
assert.strictEqual(parseInt(check.available, 10), available);
assert.strictEqual(parseInt(check.votesMinted, 10), v_minted);
})
it("should not allow withdrawing more than was staked", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let amount = 150000;
try {
await DAppStore.methods.withdraw(id,amount).send({from: accounts[0]});
assert.fail('should have reverted before');
} catch (error) {
TestUtils.assertJump(error);
}
})
it("should not allow withdrawing more than was staked minus what has already been received", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let receipt = await DAppStore.methods.dapps(0).call();
let amount = parseInt(receipt.available, 10) + 1;
try {
await DAppStore.methods.withdraw(id,amount).send({from: accounts[0]});
assert.fail('should have reverted before');
} catch (error) {
TestUtils.assertJump(error);
}
})
it("should not allow anyone other than the developer to withdraw", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let amount = 1000;
try {
await DAppStore.methods.withdraw(id,amount).send({from: accounts[1]});
} catch (error) {
TestUtils.assertJump(error);
}
})
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it("should handle downvotes after withdrawals correctly", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let cost = await DAppStore.methods.downvoteCost(id).call()
let amount = parseInt(cost.c, 10);
let developer = accounts[0];
let initial = await DAppStore.methods.dapps(0).call();
let bal_before = await SNT.methods.balanceOf(developer).call();
await SNT.methods.generateTokens(accounts[1], amount).send();
const encodedCall = DAppStore.methods.downvote(id,amount).encodeABI();
await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[1]});
let receipt = await DAppStore.methods.dapps(0).call();
assert.strictEqual(developer, receipt.developer);
assert.strictEqual(id, receipt.id);
// Check the developer actually receives the SNT!
let bal_after = await SNT.methods.balanceOf(developer).call();
let bal_effect = parseInt(bal_after, 10) - parseInt(bal_before, 10)
assert.strictEqual(bal_effect, amount);
// Balance, rate, and votes_minted remain unchanged for downvotes
assert.strictEqual(initial.balance, receipt.balance);
assert.strictEqual(initial.rate, receipt.rate);
assert.strictEqual(initial.votesMinted, receipt.votesMinted);
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let available = parseInt(initial.available, 10) - parseInt(cost.c, 10);
assert.strictEqual(available, parseInt(receipt.available, 10));
let eff_v_cast = parseInt(receipt.votesCast, 10) - parseInt(initial.votesCast, 10);
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assert.strictEqual(eff_v_cast, parseInt(cost.vR, 10));
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let e_balance = parseInt(initial.effectiveBalance, 10) - parseInt(cost.b, 10);
assert.strictEqual(e_balance, parseInt(receipt.effectiveBalance, 10));
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})
it("should handle upvotes after withdrawals correctly", async function () {
let id = "0x7465737400000000000000000000000000000000000000000000000000000000";
let amount = 100;
let initial = await DAppStore.methods.dapps(0).call();
let before = await SNT.methods.balanceOf(DAppStore.options.address).call();
let up_effect = await DAppStore.methods.upvoteEffect(id,amount).call();
await SNT.methods.generateTokens(accounts[0], amount).send();
const encodedCall = DAppStore.methods.upvote(id,amount).encodeABI();
await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[0]});
let receipt = await DAppStore.methods.dapps(0).call();
let developer = accounts[0];
assert.strictEqual(developer, receipt.developer);
assert.strictEqual(id, receipt.id);
// Check the DApp Store actually receives the SNT!
let after = await SNT.methods.balanceOf(DAppStore.options.address).call();
let bal_effect = parseInt(after, 10) - parseInt(before, 10);
assert.strictEqual(bal_effect, amount);
// Having received the SNT, check that it updates the particular DApp's storage values
let upvotedBalance = parseInt(initial.balance, 10) + amount
assert.strictEqual(upvotedBalance, parseInt(receipt.balance, 10));
let max = await DAppStore.methods.max().call();
let decimals = await DAppStore.methods.decimals().call();
let rate = Math.round(decimals - (upvotedBalance * decimals/max));
assert.strictEqual(rate, parseInt(receipt.rate, 10));
let available = upvotedBalance * rate;
assert.strictEqual(available, parseInt(receipt.available, 10));
let votes_minted = parseInt(receipt.votesMinted, 10);
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// Votes have been cast by this stage, so we need to check how many there are
// and confirm that `upvote` still calculates the effective_balance correctly
let votes_cast = parseInt(receipt.votesCast, 10);
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let e_balance = Math.ceil(upvotedBalance - ((votes_cast*rate/decimals)*(available/decimals/votes_minted)));
assert.strictEqual(e_balance, parseInt(receipt.effectiveBalance, 10));
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// The effective_balance should also match upvoteEffect + initial.effectiveBalance
let e_balance_2 = parseInt(up_effect, 10) + parseInt(initial.effectiveBalance, 10);
assert.strictEqual(e_balance_2, parseInt(receipt.effectiveBalance, 10));
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})
it("should create a DApp without overflowing", async function () {
let id = "0x0000000000000000000000000000000000000000000000000000000000000001";
let temp = await DAppStore.methods.safeMax().call();
let amount = parseInt(temp, 10);
await SNT.methods.generateTokens(accounts[0], amount).send();
const encodedCall = DAppStore.methods.createDApp(id,amount).encodeABI();
await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[0]});
let receipt = await DAppStore.methods.dapps(1).call();
let developer = accounts[0];
assert.strictEqual(developer, receipt.developer);
assert.strictEqual(id, receipt.id);
// Having received the SNT, check that it updates the particular DApp's storage values
assert.strictEqual(amount, parseInt(receipt.balance, 10));
let max = await DAppStore.methods.max().call();
let decimals = await DAppStore.methods.decimals().call();
let rate = Math.ceil(decimals - (amount * decimals/max));
assert.strictEqual(rate, parseInt(receipt.rate, 10));
let available = amount * rate;
assert.strictEqual(available, parseInt(receipt.available, 10));
// It's checking that votesMinted doesn't overflow which we're really interested in here
let votes_minted = Math.round((available/decimals) ** (decimals/rate));
let returned = parseInt(receipt.votesMinted, 10);
// Is going to be less than due to rounding inaccuracies at higher exponents
assert.ok(returned <= votes_minted);
})
it("should prove we have the highest safeMax allowed for by Bancor's power approximation", async function () {
let id = "0x0000000000000000000000000000000000000000000000000000000000000002";
let max = await DAppStore.methods.max().call();
// Choose a safeMax 1% higher than is currently set
let safe = await DAppStore.methods.safeMax().call();
let percent = (safe/max * 100) + 1;
let amount = parseInt(max, 10) * percent;
await SNT.methods.generateTokens(accounts[0], amount).send();
const encodedCall = DAppStore.methods.createDApp(id,amount).encodeABI();
try {
await SNT.methods.approveAndCall(DAppStore.options.address, amount, encodedCall).send({from: accounts[0]});
} catch (error) {
TestUtils.assertJump(error);
}
})
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});