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capabilitycontrollers_test.go
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/*
* Cadence - The resource-oriented smart contract programming language
*
* Copyright Flow Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package tests
import (
"encoding/binary"
"fmt"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/onflow/cadence"
"github.com/onflow/cadence/common"
"github.com/onflow/cadence/interpreter"
. "github.com/onflow/cadence/runtime"
"github.com/onflow/cadence/sema"
"github.com/onflow/cadence/stdlib"
. "github.com/onflow/cadence/tests/runtime_utils"
. "github.com/onflow/cadence/tests/utils"
)
func TestRuntimeCapabilityControllers(t *testing.T) {
t.Parallel()
testWithSignerCount := func(t *testing.T, tx string, signerCount int) (
err error,
storage *Storage,
events []cadence.Event,
) {
rt := NewTestInterpreterRuntime()
accountCodes := map[Location][]byte{}
deployTx := DeploymentTransaction(
"Test",
// language=cadence
[]byte(`
access(all) contract Test {
access(all) entitlement X
access(all) resource R {
access(all) let id: Int
init(id: Int) {
self.id = id
}
}
access(all) resource S {}
access(all) fun createAndSaveR(id: Int, storagePath: StoragePath) {
self.account.storage.save(
<-create R(id: id),
to: storagePath
)
}
access(all) fun createAndSaveS(storagePath: StoragePath) {
self.account.storage.save(
<-create S(),
to: storagePath
)
}
/// quickSort is qsort from "The C Programming Language".
///
/// > Our version of quicksort is not the fastest possible,
/// > but it's one of the simplest.
///
access(all) fun quickSort(_ items: auth(Mutate) &[AnyStruct], isLess: fun(Int, Int): Bool) {
fun quickSortPart(leftIndex: Int, rightIndex: Int) {
if leftIndex >= rightIndex {
return
}
let pivotIndex = (leftIndex + rightIndex) / 2
items[pivotIndex] <-> items[leftIndex]
items[pivotIndex] <-> items[leftIndex]
var lastIndex = leftIndex
var index = leftIndex + 1
while index <= rightIndex {
if isLess(index, leftIndex) {
lastIndex = lastIndex + 1
items[lastIndex] <-> items[index]
}
index = index + 1
}
items[leftIndex] <-> items[lastIndex]
quickSortPart(leftIndex: leftIndex, rightIndex: lastIndex - 1)
quickSortPart(leftIndex: lastIndex + 1, rightIndex: rightIndex)
}
quickSortPart(
leftIndex: 0,
rightIndex: items.length - 1
)
}
}
`),
)
if signerCount < 1 {
signerCount = 1
}
testSigners := make([]Address, signerCount)
for signerIndex := 0; signerIndex < signerCount; signerIndex++ {
binary.BigEndian.PutUint64(
testSigners[signerIndex][:],
uint64(signerIndex+1),
)
}
signers := []Address{testSigners[0]}
runtimeInterface := &TestRuntimeInterface{
Storage: NewTestLedger(nil, nil),
OnProgramLog: func(message string) {
// NO-OP
},
OnEmitEvent: func(event cadence.Event) error {
events = append(events, event)
return nil
},
OnGetSigningAccounts: func() ([]Address, error) {
return signers, nil
},
OnResolveLocation: NewSingleIdentifierLocationResolver(t),
OnUpdateAccountContractCode: func(location common.AddressLocation, code []byte) error {
accountCodes[location] = code
return nil
},
OnGetAccountContractCode: func(location common.AddressLocation) (code []byte, err error) {
code = accountCodes[location]
return code, nil
},
}
nextTransactionLocation := NewTransactionLocationGenerator()
// Deploy contract
err = rt.ExecuteTransaction(
Script{
Source: deployTx,
},
Context{
Interface: runtimeInterface,
Location: nextTransactionLocation(),
},
)
require.NoError(t, err)
// Call contract
signers = testSigners
err = rt.ExecuteTransaction(
Script{
Source: []byte(tx),
},
Context{
Interface: runtimeInterface,
Location: nextTransactionLocation(),
},
)
var storageErr error
storage, _, storageErr = rt.Storage(Context{
Interface: runtimeInterface,
})
require.NoError(t, storageErr)
return
}
test := func(t *testing.T, tx string) (
err error,
storage *Storage,
events []cadence.Event,
) {
return testWithSignerCount(t, tx, 1)
}
authAccountType := sema.FullyEntitledAccountReferenceType
publicAccountType := sema.AccountReferenceType
testAccount := func(accountType sema.Type, accountExpression string) {
testName := fmt.Sprintf(
"%s.Capabilities",
accountType.String(),
)
t.Run(testName, func(t *testing.T) {
t.Parallel()
t.Run("get non-existing", func(t *testing.T) {
t.Parallel()
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
transaction {
prepare(signer: auth(Capabilities) &Account) {
let path = /public/x
// Act
let gotCap: Capability<&AnyStruct> =
%[1]s.capabilities.get<&AnyStruct>(path)
// Assert
assert(!%[1]s.capabilities.exists(path))
assert(gotCap.id == 0)
assert(gotCap.borrow() == nil)
assert(gotCap.check() == false)
assert(gotCap.address == 0x1)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{},
nonDeploymentEventStrings(events),
)
})
t.Run("get and check existing, with valid type", func(t *testing.T) {
t.Parallel()
t.Run("storage capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
import Test from 0x1
transaction {
prepare(signer: auth(Capabilities) &Account) {
let storagePath = /storage/r
let publicPath = /public/r
let expectedCapID: UInt64 = 1
let resourceID = 42
// Arrange
Test.createAndSaveR(id: resourceID, storagePath: storagePath)
let issuedCap: Capability<&Test.R> =
signer.capabilities.storage.issue<&Test.R>(storagePath)
signer.capabilities.publish(issuedCap, at: publicPath)
// Act
let gotCap: Capability<&Test.R> =
%[1]s.capabilities.get<&Test.R>(publicPath)
// Assert
assert(%[1]s.capabilities.exists(publicPath))
assert(issuedCap.id == expectedCapID)
assert(gotCap.check())
assert(gotCap.id == expectedCapID)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.StorageCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&A.0000000000000001.Test.R>(), path: /storage/r)`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/r, capability: Capability<&A.0000000000000001.Test.R>(address: 0x0000000000000001, id: 1))`,
},
nonDeploymentEventStrings(events),
)
})
t.Run("account capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
transaction {
prepare(signer: auth(Capabilities) &Account) {
let publicPath = /public/acct
let expectedCapID: UInt64 = 1
// Arrange
let issuedCap: Capability<&Account> =
signer.capabilities.account.issue<&Account>()
signer.capabilities.publish(issuedCap, at: publicPath)
// Act
let gotCap: Capability<&Account> =
%[1]s.capabilities.get<&Account>(publicPath)
// Assert
assert(%[1]s.capabilities.exists(publicPath))
assert(issuedCap.id == expectedCapID)
assert(gotCap.check())
assert(gotCap.id == expectedCapID)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.AccountCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&Account>())`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/acct, capability: Capability<&Account>(address: 0x0000000000000001, id: 1))`,
},
nonDeploymentEventStrings(events))
})
})
t.Run("get, borrow, and check existing, with valid type", func(t *testing.T) {
t.Parallel()
t.Run("storage capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
import Test from 0x1
transaction {
prepare(signer: auth(Capabilities) &Account) {
let storagePath = /storage/r
let publicPath = /public/r
let expectedCapID: UInt64 = 1
let resourceID = 42
// Arrange
Test.createAndSaveR(id: resourceID, storagePath: storagePath)
let issuedCap: Capability<&Test.R> =
signer.capabilities.storage.issue<&Test.R>(storagePath)
signer.capabilities.publish(issuedCap, at: publicPath)
// Act
let gotCap: Capability<&Test.R> =
%[1]s.capabilities.get<&Test.R>(publicPath)
let ref: &Test.R = gotCap.borrow()!
// Assert
assert(%[1]s.capabilities.exists(publicPath))
assert(issuedCap.id == expectedCapID)
assert(gotCap.check())
assert(gotCap.id == expectedCapID)
assert(ref.id == resourceID)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.StorageCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&A.0000000000000001.Test.R>(), path: /storage/r)`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/r, capability: Capability<&A.0000000000000001.Test.R>(address: 0x0000000000000001, id: 1))`,
},
nonDeploymentEventStrings(events))
})
t.Run("account capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
transaction {
prepare(signer: auth(Capabilities) &Account) {
let publicPath = /public/acct
let expectedCapID: UInt64 = 1
// Arrange
let issuedCap: Capability<&Account> =
signer.capabilities.account.issue<&Account>()
signer.capabilities.publish(issuedCap, at: publicPath)
// Act
let gotCap: Capability<&Account> =
%[1]s.capabilities.get<&Account>(publicPath)
let ref: &Account = gotCap.borrow()!
// Assert
assert(%[1]s.capabilities.exists(publicPath))
assert(issuedCap.id == expectedCapID)
assert(gotCap.check())
assert(gotCap.id == expectedCapID)
assert(ref.address == 0x1)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.AccountCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&Account>())`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/acct, capability: Capability<&Account>(address: 0x0000000000000001, id: 1))`,
},
nonDeploymentEventStrings(events),
)
})
})
t.Run("get existing, with subtype", func(t *testing.T) {
t.Parallel()
t.Run("storage capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
import Test from 0x1
transaction {
prepare(signer: auth(Capabilities) &Account) {
let storagePath = /storage/r
let publicPath = /public/r
let expectedCapID: UInt64 = 1
let resourceID = 42
// Arrange
Test.createAndSaveR(id: resourceID, storagePath: storagePath)
let issuedCap: Capability<&Test.R> =
signer.capabilities.storage.issue<&Test.R>(storagePath)
signer.capabilities.publish(issuedCap, at: publicPath)
// Act
let gotCap: Capability<auth(Test.X) &Test.R> =
%[1]s.capabilities.get<auth(Test.X) &Test.R>(publicPath)
// Assert
assert(%[1]s.capabilities.exists(publicPath))
assert(issuedCap.id == expectedCapID)
assert(gotCap.id == 0)
assert(gotCap.borrow() == nil)
assert(gotCap.check() == false)
assert(gotCap.address == 0x1)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.StorageCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&A.0000000000000001.Test.R>(), path: /storage/r)`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/r, capability: Capability<&A.0000000000000001.Test.R>(address: 0x0000000000000001, id: 1))`,
},
nonDeploymentEventStrings(events),
)
})
t.Run("account capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
import Test from 0x1
transaction {
prepare(signer: auth(Capabilities) &Account) {
let publicPath = /public/acct
let expectedCapID: UInt64 = 1
// Arrange
let issuedCap: Capability<&Account> =
signer.capabilities.account.issue<&Account>()
signer.capabilities.publish(issuedCap, at: publicPath)
// Act
let gotCap: Capability<&Test.R> =
%[1]s.capabilities.get<&Test.R>(publicPath)
// Assert
assert(%[1]s.capabilities.exists(publicPath))
assert(issuedCap.id == expectedCapID)
assert(gotCap.id == 0)
assert(gotCap.borrow() == nil)
assert(gotCap.check() == false)
assert(gotCap.address == 0x1)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.AccountCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&Account>())`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/acct, capability: Capability<&Account>(address: 0x0000000000000001, id: 1))`,
},
nonDeploymentEventStrings(events),
)
})
})
t.Run("get existing, with different type", func(t *testing.T) {
t.Parallel()
t.Run("storage capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
import Test from 0x1
transaction {
prepare(signer: auth(Capabilities) &Account) {
let storagePath = /storage/r
let publicPath = /public/r
let expectedCapID: UInt64 = 1
let resourceID = 42
// Arrange
Test.createAndSaveR(id: resourceID, storagePath: storagePath)
let issuedCap: Capability<&Test.R> =
signer.capabilities.storage.issue<&Test.R>(storagePath)
signer.capabilities.publish(issuedCap, at: publicPath)
// Act
let gotCap: Capability<&Test.S> =
%[1]s.capabilities.get<&Test.S>(publicPath)
// Assert
assert(%[1]s.capabilities.exists(publicPath))
assert(issuedCap.id == expectedCapID)
assert(gotCap.id == 0)
assert(gotCap.borrow() == nil)
assert(gotCap.check() == false)
assert(gotCap.address == 0x1)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.StorageCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&A.0000000000000001.Test.R>(), path: /storage/r)`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/r, capability: Capability<&A.0000000000000001.Test.R>(address: 0x0000000000000001, id: 1))`,
},
nonDeploymentEventStrings(events),
)
})
t.Run("account capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
transaction {
prepare(signer: auth(Capabilities) &Account) {
let publicPath = /public/acct
let expectedCapID: UInt64 = 1
// Arrange
let issuedCap: Capability<&Account> =
signer.capabilities.account.issue<&Account>()
signer.capabilities.publish(issuedCap, at: publicPath)
// Act
let gotCap: Capability<&AnyResource> =
%[1]s.capabilities.get<&AnyResource>(publicPath)
// Assert
assert(%[1]s.capabilities.exists(publicPath))
assert(issuedCap.id == expectedCapID)
assert(gotCap.id == 0)
assert(gotCap.borrow() == nil)
assert(gotCap.check() == false)
assert(gotCap.address == 0x1)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.AccountCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&Account>())`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/acct, capability: Capability<&Account>(address: 0x0000000000000001, id: 1))`,
},
nonDeploymentEventStrings(events),
)
})
})
t.Run("get unpublished", func(t *testing.T) {
t.Parallel()
t.Run("storage capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
import Test from 0x1
transaction {
prepare(signer: auth(Capabilities) &Account) {
let storagePath = /storage/r
let publicPath = /public/r
let expectedCapID: UInt64 = 1
let resourceID = 42
// Arrange
Test.createAndSaveR(id: resourceID, storagePath: storagePath)
let issuedCap: Capability<&Test.R> =
signer.capabilities.storage.issue<&Test.R>(storagePath)
signer.capabilities.publish(issuedCap, at: publicPath)
let unpublishedcap = signer.capabilities.unpublish(publicPath)
// Act
let gotCap: Capability<&Test.R> =
%[1]s.capabilities.get<&Test.R>(publicPath)
// Assert
assert(!%[1]s.capabilities.exists(publicPath))
assert(issuedCap.id == expectedCapID)
assert(unpublishedcap!.id == expectedCapID)
assert(gotCap.id == 0)
assert(gotCap.borrow() == nil)
assert(gotCap.check() == false)
assert(gotCap.address == 0x1)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.StorageCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&A.0000000000000001.Test.R>(), path: /storage/r)`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/r, capability: Capability<&A.0000000000000001.Test.R>(address: 0x0000000000000001, id: 1))`,
`flow.CapabilityUnpublished(address: 0x0000000000000001, path: /public/r)`,
},
nonDeploymentEventStrings(events),
)
})
t.Run("account capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
transaction {
prepare(signer: auth(Capabilities) &Account) {
let publicPath = /public/acct
let expectedCapID: UInt64 = 1
// Arrange
let issuedCap: Capability<&Account> =
signer.capabilities.account.issue<&Account>()
signer.capabilities.publish(issuedCap, at: publicPath)
let unpublishedcap = signer.capabilities.unpublish(publicPath)
// Act
let gotCap: Capability<&Account> =
%[1]s.capabilities.get<&Account>(publicPath)
// Assert
assert(!%[1]s.capabilities.exists(publicPath))
assert(issuedCap.id == expectedCapID)
assert(unpublishedcap!.id == expectedCapID)
assert(gotCap.id == 0)
assert(gotCap.borrow() == nil)
assert(gotCap.check() == false)
assert(gotCap.address == 0x1)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.AccountCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&Account>())`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/acct, capability: Capability<&Account>(address: 0x0000000000000001, id: 1))`,
`flow.CapabilityUnpublished(address: 0x0000000000000001, path: /public/acct)`,
},
nonDeploymentEventStrings(events),
)
})
})
t.Run("borrow non-existing", func(t *testing.T) {
t.Parallel()
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
transaction {
prepare(signer: auth(Capabilities) &Account) {
// Act
let ref: &AnyStruct? =
%s.capabilities.borrow<&AnyStruct>(/public/x)
// Assert
assert(ref == nil)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{},
nonDeploymentEventStrings(events),
)
})
t.Run("borrow existing, with valid type", func(t *testing.T) {
t.Parallel()
t.Run("storage capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
import Test from 0x1
transaction {
prepare(signer: auth(Capabilities) &Account) {
let storagePath = /storage/r
let publicPath = /public/r
let expectedCapID: UInt64 = 1
let resourceID = 42
// Arrange
Test.createAndSaveR(id: resourceID, storagePath: storagePath)
let issuedCap: Capability<&Test.R> =
signer.capabilities.storage.issue<&Test.R>(storagePath)
signer.capabilities.publish(issuedCap, at: publicPath)
// Act
let ref: &Test.R =
%s.capabilities.borrow<&Test.R>(publicPath)!
// Assert
assert(issuedCap.id == expectedCapID)
assert(ref.id == resourceID)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.StorageCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&A.0000000000000001.Test.R>(), path: /storage/r)`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/r, capability: Capability<&A.0000000000000001.Test.R>(address: 0x0000000000000001, id: 1))`,
},
nonDeploymentEventStrings(events),
)
})
t.Run("account capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
transaction {
prepare(signer: auth(Capabilities) &Account) {
let publicPath = /public/acct
let expectedCapID: UInt64 = 1
// Arrange
let issuedCap: Capability<&Account> =
signer.capabilities.account.issue<&Account>()
signer.capabilities.publish(issuedCap, at: publicPath)
// Act
let ref: &Account =
%s.capabilities.borrow<&Account>(publicPath)!
// Assert
assert(issuedCap.id == expectedCapID)
assert(ref.address == 0x1)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.AccountCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&Account>())`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/acct, capability: Capability<&Account>(address: 0x0000000000000001, id: 1))`,
},
nonDeploymentEventStrings(events),
)
})
})
t.Run("borrow existing, with subtype", func(t *testing.T) {
t.Parallel()
t.Run("storage capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
import Test from 0x1
transaction {
prepare(signer: auth(Capabilities) &Account) {
let storagePath = /storage/r
let publicPath = /public/r
let expectedCapID: UInt64 = 1
let resourceID = 42
// Arrange
Test.createAndSaveR(id: resourceID, storagePath: storagePath)
let issuedCap: Capability<&Test.R> =
signer.capabilities.storage.issue<&Test.R>(storagePath)
signer.capabilities.publish(issuedCap, at: publicPath)
// Act
let ref: auth(Test.X) &Test.R? =
%s.capabilities.borrow<auth(Test.X) &Test.R>(publicPath)
// Assert
assert(issuedCap.id == expectedCapID)
assert(ref == nil)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.StorageCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&A.0000000000000001.Test.R>(), path: /storage/r)`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/r, capability: Capability<&A.0000000000000001.Test.R>(address: 0x0000000000000001, id: 1))`,
},
nonDeploymentEventStrings(events),
)
})
t.Run("account capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
import Test from 0x1
transaction {
prepare(signer: auth(Capabilities) &Account) {
let publicPath = /public/acct
let expectedCapID: UInt64 = 1
// Arrange
let issuedCap: Capability<&Account> =
signer.capabilities.account.issue<&Account>()
signer.capabilities.publish(issuedCap, at: publicPath)
// Act
let ref: auth(Test.X) &Account? =
%s.capabilities.borrow<auth(Test.X) &Account>(publicPath)
// Assert
assert(issuedCap.id == expectedCapID)
assert(ref == nil)
}
}
`,
accountExpression,
),
)
require.NoError(t, err)
require.Equal(t,
[]string{
`flow.AccountCapabilityControllerIssued(id: 1, address: 0x0000000000000001, type: Type<&Account>())`,
`flow.CapabilityPublished(address: 0x0000000000000001, path: /public/acct, capability: Capability<&Account>(address: 0x0000000000000001, id: 1))`,
},
nonDeploymentEventStrings(events),
)
})
})
t.Run("borrow existing, with different type", func(t *testing.T) {
t.Parallel()
t.Run("storage capability", func(t *testing.T) {
err, _, events := test(
t,
fmt.Sprintf(
// language=cadence
`
import Test from 0x1
transaction {
prepare(signer: auth(Capabilities) &Account) {
let storagePath = /storage/r
let publicPath = /public/r
let expectedCapID: UInt64 = 1
let resourceID = 42
// Arrange
Test.createAndSaveR(id: resourceID, storagePath: storagePath)
let issuedCap: Capability<&Test.R> =
signer.capabilities.storage.issue<&Test.R>(storagePath)
signer.capabilities.publish(issuedCap, at: publicPath)