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I am having trouble with my JS tests for a Contract which depends on the deployment of another Contract first.

Contract A needs to be deployed, then pass it's address to Contract B.

I have already been able to migrate successfully, but still trying to get the tests to pass.

How do I fix my JS tests and instantiate/deploy properly?

Here is my test code:

beforeEach(async function() {
        let tx = await ContractA.deployed();
        contractB = await ContractB.deployed(tx.address);
    });

Deployment script:

module.exports = function(deployer) {
    deployer.deploy(ContractA).then(function() {
        deployer.deploy(ContractB, ContractA.address);
    });
};

Receiving this error:

Error: ContractB has not been deployed to detected network (network/artifact mismatch)
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3 Answers 3

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What is ContractA in the deployment script? I think you need the address of the instantiated contract instead.

Try:

module.exports = function(deployer) {
    deployer.deploy(ContractA).then(function(contractA) {
        deployer.deploy(ContractB, contractA.address);
    });
};

(ContractA => contractA)

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You don't want tx.address. Use:

deployer.deploy(contractA).then(function(){
    deployer.deploy(contractB, contractA.address)});

Make sure that contractB takes contractA's address in it's initialization function. Let me know if this works, took that from a truffle project I've been working on...

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  • I've already done this. See my deployment script above. It's the JS test portion that I need help on.
    – The Nomad
    Nov 6, 2017 at 3:36
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If you want to use contracts automatically deployed by test suit, why don't just fetch them like this:

beforeEach(async function() {
    let contractA = await ContractA.deployed();
    let contractB = await ContractB.deployed();
});

If deployment went well, then this should work. Or you can ignore those contract and redeploy them in test again if you have a reason to.

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