[#137] tests: implement contract testing framework

Create simple running blockchain node with a single validator and
test both contract deployment and method invocations.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

go.mod

@@ -2,4 +2,8 @@ module github.com/nspcc-dev/neofs-contract
 
 go 1.14
 
-require github.com/nspcc-dev/neo-go v0.97.2
+require (
+	github.com/nspcc-dev/neo-go v0.97.2
+	github.com/stretchr/testify v1.7.0
+	go.uber.org/zap v1.18.1
+)

go.sum

@@ -5,9 +5,12 @@ github.com/CityOfZion/neo-go v0.62.1-pre.0.20191114145240-e740fbe708f8/go.mod h1
 github.com/CityOfZion/neo-go v0.70.1-pre.0.20191209120015-fccb0085941e/go.mod h1:0enZl0az8xA6PVkwzEOwPWVJGqlt/GO4hA4kmQ5Xzig=
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@@ -19,15 +22,21 @@ github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRF
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@@ -40,8 +49,10 @@ github.com/btcsuite/snappy-go v1.0.0/go.mod h1:8woku9dyThutzjeg+3xrA5iCpBRH8XEEg
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@@ -51,15 +62,22 @@ github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGX
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@@ -70,6 +88,7 @@ github.com/fatih/color v1.12.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGE
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@@ -78,6 +97,7 @@ github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9
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@@ -94,8 +114,10 @@ github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrU
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@@ -145,6 +174,7 @@ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJ
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@@ -155,6 +185,7 @@ github.com/nspcc-dev/dbft v0.0.0-20200219114139-199d286ed6c1/go.mod h1:O0qtn62pr
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@@ -225,31 +272,42 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
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 go.uber.org/zap v1.18.1/go.mod h1:xg/QME4nWcxGxrpdeYfq7UvYrLh66cuVKdrbD1XF/NI=
 golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
@@ -260,12 +318,15 @@ golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20200115085410-6d4e4cb37c7d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200510223506-06a226fb4e37/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 h1:/UOmuWzQfxxo9UtlXMwuQU8CMgg1eZXqTRwkSQJWKOI=
 golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/mod v0.3.0 h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180719180050-a680a1efc54d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -282,6 +343,7 @@ golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/
 golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200813134508-3edf25e44fcc/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.0.0-20210226172049-e18ecbb05110 h1:qWPm9rbaAMKs8Bq/9LRpbMqxWRVUAQwMI9fVrssnTfw=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -291,6 +353,7 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20201207232520-09787c993a3a h1:DcqTD9SDLc+1P/r1EmRBwnVsrOwW+kk2vWf9n+1sGhs=
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -323,13 +386,16 @@ golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 h1:SrN+KX8Art/Sf4HNj6Zcz06G7VEz+7w9tdXTPOZ7+l4=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210429154555-c04ba851c2a4 h1:UPou2i3GzKgi6igR+/0C5XyHKBngHxBp/CL5CQ0p3Zk=
 golang.org/x/term v0.0.0-20210429154555-c04ba851c2a4/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180318012157-96caea41033d/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -339,18 +405,22 @@ golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20201022035929-9cf592e881e9 h1:sEvmEcJVKBNUvgCUClbUQeHOAa9U0I2Ce1BooMvVCY4=
 golang.org/x/tools v0.0.0-20201022035929-9cf592e881e9/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55 h1:gSJIx1SDwno+2ElGhA4+qG2zF97qiUzTM+rQ0klBOcE=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
+google.golang.org/grpc v1.29.1 h1:EC2SB8S04d2r73uptxphDSUG+kTKVgjRPF+N3xpxRB4=
 google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
@@ -358,13 +428,16 @@ google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQ
 google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
 google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.26.0-rc.1 h1:7QnIQpGRHE5RnLKnESfDoxm2dTapTZua5a0kS0A+VXQ=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 gopkg.in/abiosoft/ishell.v2 v2.0.0/go.mod h1:sFp+cGtH6o4s1FtpVPTMcHq2yue+c4DGOVohJCPUzwY=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
@@ -372,8 +445,10 @@ gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

tests/basic.go

@@ -0,0 +1,292 @@
+package tests
+
+import (
+	"encoding/hex"
+	"encoding/json"
+	"path"
+	"strings"
+	"testing"
+
+	"github.com/nspcc-dev/neo-go/cli/smartcontract"
+	"github.com/nspcc-dev/neo-go/pkg/compiler"
+	"github.com/nspcc-dev/neo-go/pkg/config"
+	"github.com/nspcc-dev/neo-go/pkg/config/netmode"
+	"github.com/nspcc-dev/neo-go/pkg/core"
+	"github.com/nspcc-dev/neo-go/pkg/core/block"
+	"github.com/nspcc-dev/neo-go/pkg/core/fee"
+	"github.com/nspcc-dev/neo-go/pkg/core/native"
+	"github.com/nspcc-dev/neo-go/pkg/core/state"
+	"github.com/nspcc-dev/neo-go/pkg/core/storage"
+	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
+	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
+	"github.com/nspcc-dev/neo-go/pkg/io"
+	"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
+	"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
+	"github.com/nspcc-dev/neo-go/pkg/smartcontract/nef"
+	"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/vm"
+	"github.com/nspcc-dev/neo-go/pkg/vm/emit"
+	"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
+	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"github.com/nspcc-dev/neo-go/pkg/wallet"
+	"github.com/stretchr/testify/require"
+	"go.uber.org/zap/zaptest"
+)
+
+const validatorWIF = "KxyjQ8eUa4FHt3Gvioyt1Wz29cTUrE4eTqX3yFSk1YFCsPL8uNsY"
+
+// CommitteeAcc is an account used to sign tx as a committee.
+var CommitteeAcc *wallet.Account
+
+func init() {
+	CommitteeAcc, _ = wallet.NewAccountFromWIF(validatorWIF)
+	pubs := keys.PublicKeys{CommitteeAcc.PrivateKey().PublicKey()}
+	err := CommitteeAcc.ConvertMultisig(1, pubs)
+	if err != nil {
+		panic(err)
+	}
+}
+
+var _nonce uint32
+
+func nonce() uint32 {
+	_nonce++
+	return _nonce
+}
+
+// NewChain creates new blockchain instance with a single validator and
+// setups cleanup functions.
+func NewChain(t *testing.T) *core.Blockchain {
+	protoCfg := config.ProtocolConfiguration{
+		Magic:              netmode.UnitTestNet,
+		P2PSigExtensions:   true,
+		SecondsPerBlock:    1,
+		StandbyCommittee:   []string{hex.EncodeToString(CommitteeAcc.PrivateKey().PublicKey().Bytes())},
+		ValidatorsCount:    1,
+		VerifyBlocks:       true,
+		VerifyTransactions: true,
+	}
+
+	st := storage.NewMemoryStore()
+	log := zaptest.NewLogger(t)
+	bc, err := core.NewBlockchain(st, protoCfg, log)
+	require.NoError(t, err)
+	go bc.Run()
+	t.Cleanup(bc.Close)
+	return bc
+}
+
+// PrepareInvoke creates new invocation transaction.
+// Signer can be either bool or *wallet.Account.
+// In the first case `true` means sign by committee, `false` means sign by validators.
+func PrepareInvoke(t *testing.T, bc *core.Blockchain, signer interface{},
+	hash util.Uint160, method string, args ...interface{}) *transaction.Transaction {
+	w := io.NewBufBinWriter()
+	emit.AppCall(w.BinWriter, hash, method, callflag.All, args...)
+	require.NoError(t, w.Err)
+
+	script := w.Bytes()
+	tx := transaction.New(script, 0)
+	tx.Nonce = nonce()
+	tx.ValidUntilBlock = bc.BlockHeight() + 1
+
+	switch s := signer.(type) {
+	case *wallet.Account:
+		tx.Signers = append(tx.Signers, transaction.Signer{
+			Account: s.Contract.ScriptHash(),
+			Scopes:  transaction.Global,
+		})
+		require.NoError(t, addNetworkFee(bc, tx, s))
+		require.NoError(t, addSystemFee(bc, tx))
+		require.NoError(t, s.SignTx(netmode.UnitTestNet, tx))
+	case []*wallet.Account:
+		for _, acc := range s {
+			tx.Signers = append(tx.Signers, transaction.Signer{
+				Account: acc.Contract.ScriptHash(),
+				Scopes:  transaction.Global,
+			})
+			require.NoError(t, addNetworkFee(bc, tx, acc))
+		}
+		require.NoError(t, addSystemFee(bc, tx))
+		for _, acc := range s {
+			require.NoError(t, acc.SignTx(netmode.UnitTestNet, tx))
+		}
+	default:
+		panic("invalid signer")
+	}
+
+	return tx
+}
+
+// NewAccount creates new account and transfers 100.0 GAS to it.
+func NewAccount(t *testing.T, bc *core.Blockchain) *wallet.Account {
+	acc, err := wallet.NewAccount()
+	require.NoError(t, err)
+
+	tx := PrepareInvoke(t, bc, CommitteeAcc,
+		bc.UtilityTokenHash(), "transfer",
+		CommitteeAcc.Contract.ScriptHash(), acc.Contract.ScriptHash(), int64(100_0000_0000), nil)
+	AddBlock(t, bc, tx)
+	CheckHalt(t, bc, tx.Hash())
+	return acc
+}
+
+// DeployContract compiles and deploys contract to bc.
+// path should contain Go source files.
+// data is an optional argument to `_deploy`.
+func DeployContract(t *testing.T, bc *core.Blockchain, path string, data interface{}) util.Uint160 {
+	tx, h := newDeployTx(t, bc, path, data)
+	AddBlock(t, bc, tx)
+	CheckHalt(t, bc, tx.Hash())
+	return h
+}
+
+// CheckHalt checks that transaction persisted with HALT state.
+func CheckHalt(t *testing.T, bc *core.Blockchain, h util.Uint256, stack ...stackitem.Item) {
+	aer, err := bc.GetAppExecResults(h, trigger.Application)
+	require.NoError(t, err)
+	require.Equal(t, vm.HaltState, aer[0].VMState, aer[0].FaultException)
+	if len(stack) != 0 {
+		require.Equal(t, stack, aer[0].Stack)
+	}
+}
+
+// CheckFault checks that transaction persisted with FAULT state.
+// Raised exception is also checked to contain s as a substring.
+func CheckFault(t *testing.T, bc *core.Blockchain, h util.Uint256, s string) {
+	aer, err := bc.GetAppExecResults(h, trigger.Application)
+	require.NoError(t, err)
+	require.Equal(t, vm.FaultState, aer[0].VMState)
+	require.True(t, strings.Contains(aer[0].FaultException, s),
+		"expected: %s, got: %s", s, aer[0].FaultException)
+}
+
+// newDeployTx returns new deployment tx for contract.
+func newDeployTx(t *testing.T, bc *core.Blockchain, ctrPath string, data interface{}) (*transaction.Transaction, util.Uint160) {
+	// nef.NewFile() cares about version a lot.
+	config.Version = "0.90.0-test"
+
+	avm, di, err := compiler.CompileWithDebugInfo(ctrPath, nil)
+	require.NoError(t, err)
+
+	ne, err := nef.NewFile(avm)
+	require.NoError(t, err)
+
+	conf, err := smartcontract.ParseContractConfig(path.Join(ctrPath, "config.yml"))
+	require.NoError(t, err)
+
+	o := &compiler.Options{}
+	o.Name = conf.Name
+	o.ContractEvents = conf.Events
+	o.ContractSupportedStandards = conf.SupportedStandards
+	o.Permissions = make([]manifest.Permission, len(conf.Permissions))
+	for i := range conf.Permissions {
+		o.Permissions[i] = manifest.Permission(conf.Permissions[i])
+	}
+	o.SafeMethods = conf.SafeMethods
+	m, err := compiler.CreateManifest(di, o)
+	require.NoError(t, err)
+
+	rawManifest, err := json.Marshal(m)
+	require.NoError(t, err)
+
+	neb, err := ne.Bytes()
+	require.NoError(t, err)
+
+	buf := io.NewBufBinWriter()
+	emit.AppCall(buf.BinWriter, bc.ManagementContractHash(), "deploy", callflag.All, neb, rawManifest, data)
+	require.NoError(t, buf.Err)
+
+	tx := transaction.New(buf.Bytes(), 100*native.GASFactor)
+	tx.Nonce = nonce()
+	tx.ValidUntilBlock = bc.BlockHeight() + 1
+	tx.Signers = []transaction.Signer{{Account: CommitteeAcc.Contract.ScriptHash()}}
+	require.NoError(t, addNetworkFee(bc, tx, CommitteeAcc))
+	require.NoError(t, CommitteeAcc.SignTx(netmode.UnitTestNet, tx))
+
+	h := state.CreateContractHash(tx.Sender(), ne.Checksum, m.Name)
+	return tx, h
+}
+
+func addSystemFee(bc *core.Blockchain, tx *transaction.Transaction) error {
+	v, _ := TestInvoke(bc, tx) // ignore error to support failing transactions
+	tx.SystemFee = v.GasConsumed()
+	return nil
+}
+
+func addNetworkFee(bc *core.Blockchain, tx *transaction.Transaction, sender *wallet.Account) error {
+	size := io.GetVarSize(tx)
+	netFee, sizeDelta := fee.Calculate(bc.GetBaseExecFee(), sender.Contract.Script)
+	tx.NetworkFee += netFee
+	size += sizeDelta
+	for _, cosigner := range tx.Signers {
+		contract := bc.GetContractState(cosigner.Account)
+		if contract != nil {
+			netFee, sizeDelta = fee.Calculate(bc.GetBaseExecFee(), contract.NEF.Script)
+			tx.NetworkFee += netFee
+			size += sizeDelta
+		}
+	}
+	tx.NetworkFee += int64(size) * bc.FeePerByte()
+	return nil
+}
+
+// AddBlock creates a new block from provided transactions and adds it on bc.
+func AddBlock(t *testing.T, bc *core.Blockchain, txs ...*transaction.Transaction) *block.Block {
+	lastBlock, err := bc.GetBlock(bc.GetHeaderHash(int(bc.BlockHeight())))
+	require.NoError(t, err)
+	b := &block.Block{
+		Header: block.Header{
+			NextConsensus: CommitteeAcc.Contract.ScriptHash(),
+			Script: transaction.Witness{
+				VerificationScript: CommitteeAcc.Contract.Script,
+			},
+			Timestamp: lastBlock.Timestamp + 1,
+		},
+		Transactions: txs,
+	}
+	b.PrevHash = lastBlock.Hash()
+	b.Index = bc.BlockHeight() + 1
+	b.RebuildMerkleRoot()
+
+	sign := CommitteeAcc.PrivateKey().SignHashable(uint32(netmode.UnitTestNet), b)
+	b.Script.InvocationScript = append([]byte{byte(opcode.PUSHDATA1), 64}, sign...)
+	require.NoError(t, bc.AddBlock(b))
+
+	return b
+}
+
+// AddBlockCheckHalt is a convenient wrapper over AddBlock and CheckHalt.
+func AddBlockCheckHalt(t *testing.T, bc *core.Blockchain, txs ...*transaction.Transaction) *block.Block {
+	b := AddBlock(t, bc, txs...)
+	for _, tx := range txs {
+		CheckHalt(t, bc, tx.Hash())
+	}
+	return b
+}
+
+// CheckTestInvoke executes transaction without persisting it's state and
+// compares the result with the expected.
+func CheckTestInvoke(t *testing.T, bc *core.Blockchain, tx *transaction.Transaction, expected interface{}) {
+	v, err := TestInvoke(bc, tx)
+	require.NoError(t, err)
+	require.Equal(t, 1, v.Estack().Len())
+	require.Equal(t, stackitem.Make(expected), v.Estack().Pop().Item())
+}
+
+// TestInvoke creates a test VM with dummy block and executes transaction in it.
+func TestInvoke(bc *core.Blockchain, tx *transaction.Transaction) (*vm.VM, error) {
+	lastBlock, err := bc.GetBlock(bc.GetHeaderHash(int(bc.BlockHeight())))
+	if err != nil {
+		return nil, err
+	}
+	b := &block.Block{Header: block.Header{
+		Index:     bc.BlockHeight() + 1,
+		Timestamp: lastBlock.Timestamp + 1,
+	}}
+	v := bc.GetTestVM(trigger.Application, tx, b)
+	v.LoadWithFlags(tx.Script, callflag.All)
+	err = v.Run()
+	return v, err
+}

tests/nns_test.go

@@ -0,0 +1,225 @@
+package tests
+
+import (
+	"fmt"
+	"math/big"
+	"testing"
+	"time"
+
+	"github.com/nspcc-dev/neo-go/pkg/core/interop/storage"
+	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"github.com/nspcc-dev/neo-go/pkg/wallet"
+	"github.com/nspcc-dev/neofs-contract/nns"
+	"github.com/stretchr/testify/require"
+)
+
+const nnsPath = "../nns"
+
+func TestNNSGeneric(t *testing.T) {
+	bc := NewChain(t)
+	h := DeployContract(t, bc, nnsPath, nil)
+
+	tx := PrepareInvoke(t, bc, CommitteeAcc, h, "symbol")
+	CheckTestInvoke(t, bc, tx, "NNS")
+
+	tx = PrepareInvoke(t, bc, CommitteeAcc, h, "decimals")
+	CheckTestInvoke(t, bc, tx, 0)
+
+	tx = PrepareInvoke(t, bc, CommitteeAcc, h, "totalSupply")
+	CheckTestInvoke(t, bc, tx, 0)
+}
+
+func TestNNSAddRoot(t *testing.T) {
+	bc := NewChain(t)
+	h := DeployContract(t, bc, nnsPath, nil)
+
+	tx := PrepareInvoke(t, bc, CommitteeAcc, h, "addRoot", "0com")
+	AddBlock(t, bc, tx)
+	CheckFault(t, bc, tx.Hash(), "invalid root format")
+
+	acc := NewAccount(t, bc)
+	tx = PrepareInvoke(t, bc, acc, h, "addRoot", "com")
+	AddBlock(t, bc, tx)
+	CheckFault(t, bc, tx.Hash(), "not witnessed by committee")
+
+	tx = PrepareInvoke(t, bc, CommitteeAcc, h, "addRoot", "com")
+	AddBlock(t, bc, tx)
+	CheckHalt(t, bc, tx.Hash())
+
+	tx = PrepareInvoke(t, bc, CommitteeAcc, h, "addRoot", "com")
+	AddBlock(t, bc, tx)
+	CheckFault(t, bc, tx.Hash(), "root already exists")
+}
+
+func TestNNSRegister(t *testing.T) {
+	bc := NewChain(t)
+	h := DeployContract(t, bc, nnsPath, nil)
+
+	tx := PrepareInvoke(t, bc, CommitteeAcc, h, "addRoot", "com")
+	AddBlockCheckHalt(t, bc, tx)
+
+	acc := NewAccount(t, bc)
+	refresh, retry, expire, ttl := int64(101), int64(102), int64(103), int64(104)
+	tx = PrepareInvoke(t, bc, []*wallet.Account{CommitteeAcc, acc}, h, "register",
+		"testdomain.com", acc.Contract.ScriptHash(),
+		"myemail@nspcc.ru", refresh, retry, expire, ttl)
+	b := AddBlockCheckHalt(t, bc, tx)
+
+	tx = PrepareInvoke(t, bc, acc, h, "getRecords", "testdomain.com", int64(nns.SOA))
+	CheckTestInvoke(t, bc, tx, stackitem.NewArray([]stackitem.Item{stackitem.NewBuffer(
+		[]byte(fmt.Sprintf("testdomain.com myemail@nspcc.ru %d %d %d %d %d",
+			b.Timestamp, refresh, retry, expire, ttl)))}))
+
+	tx = PrepareInvoke(t, bc, acc, h, "addRecord",
+		"testdomain.com", int64(nns.TXT), "first TXT record")
+	AddBlockCheckHalt(t, bc, tx)
+
+	tx = PrepareInvoke(t, bc, acc, h, "addRecord",
+		"testdomain.com", int64(nns.TXT), "second TXT record")
+	AddBlockCheckHalt(t, bc, tx)
+
+	tx = PrepareInvoke(t, bc, acc, h, "getRecords", "testdomain.com", int64(nns.TXT))
+	CheckTestInvoke(t, bc, tx, stackitem.NewArray([]stackitem.Item{
+		stackitem.NewByteArray([]byte("first TXT record")),
+		stackitem.NewByteArray([]byte("second TXT record"))}))
+
+	tx = PrepareInvoke(t, bc, acc, h, "setRecord",
+		"testdomain.com", int64(nns.TXT), int64(0), "replaced first")
+	AddBlockCheckHalt(t, bc, tx)
+
+	tx = PrepareInvoke(t, bc, acc, h, "getRecords", "testdomain.com", int64(nns.TXT))
+	CheckTestInvoke(t, bc, tx, stackitem.NewArray([]stackitem.Item{
+		stackitem.NewByteArray([]byte("replaced first")),
+		stackitem.NewByteArray([]byte("second TXT record"))}))
+}
+
+func TestNNSUpdateSOA(t *testing.T) {
+	bc := NewChain(t)
+	h := DeployContract(t, bc, nnsPath, nil)
+
+	tx := PrepareInvoke(t, bc, CommitteeAcc, h, "addRoot", "com")
+	AddBlockCheckHalt(t, bc, tx)
+
+	refresh, retry, expire, ttl := int64(101), int64(102), int64(103), int64(104)
+	tx = PrepareInvoke(t, bc, CommitteeAcc, h, "register",
+		"testdomain.com", CommitteeAcc.Contract.ScriptHash(),
+		"myemail@nspcc.ru", refresh, retry, expire, ttl)
+	AddBlockCheckHalt(t, bc, tx)
+
+	refresh *= 2
+	retry *= 2
+	expire *= 2
+	ttl *= 2
+	tx = PrepareInvoke(t, bc, CommitteeAcc, h, "updateSOA",
+		"testdomain.com", "newemail@nspcc.ru", refresh, retry, expire, ttl)
+	b := AddBlockCheckHalt(t, bc, tx)
+
+	tx = PrepareInvoke(t, bc, CommitteeAcc, h, "getRecords", "testdomain.com", int64(nns.SOA))
+	CheckTestInvoke(t, bc, tx, stackitem.NewArray([]stackitem.Item{stackitem.NewBuffer(
+		[]byte(fmt.Sprintf("testdomain.com newemail@nspcc.ru %d %d %d %d %d",
+			b.Timestamp, refresh, retry, expire, ttl)))}))
+}
+
+func TestNNSGetAllRecords(t *testing.T) {
+	bc := NewChain(t)
+	h := DeployContract(t, bc, nnsPath, nil)
+
+	tx := PrepareInvoke(t, bc, CommitteeAcc, h, "addRoot", "com")
+	AddBlockCheckHalt(t, bc, tx)
+
+	refresh, retry, expire, ttl := int64(101), int64(102), int64(103), int64(104)
+	tx = PrepareInvoke(t, bc, CommitteeAcc, h, "register",
+		"testdomain.com", CommitteeAcc.Contract.ScriptHash(),
+		"myemail@nspcc.ru", refresh, retry, expire, ttl)
+	AddBlockCheckHalt(t, bc, tx)
+
+	tx = PrepareInvoke(t, bc, CommitteeAcc, h, "addRecord",
+		"testdomain.com", int64(nns.TXT), "first TXT record")
+	AddBlockCheckHalt(t, bc, tx)
+
+	tx = PrepareInvoke(t, bc, CommitteeAcc, h, "addRecord",
+		"testdomain.com", int64(nns.A), "1.2.3.4")
+	b := AddBlockCheckHalt(t, bc, tx)
+	expSOA := fmt.Sprintf("testdomain.com myemail@nspcc.ru %d %d %d %d %d",
+		b.Timestamp, refresh, retry, expire, ttl)
+
+	tx = PrepareInvoke(t, bc, CommitteeAcc, h, "getAllRecords", "testdomain.com")
+	v, err := TestInvoke(bc, tx)
+	require.NoError(t, err)
+
+	iter := v.Estack().Pop().Value().(*storage.Iterator)
+	require.True(t, iter.Next())
+	require.Equal(t, stackitem.NewStruct([]stackitem.Item{
+		stackitem.Make("testdomain.com"), stackitem.Make(int64(nns.A)),
+		stackitem.Make("1.2.3.4"), stackitem.Make(new(big.Int)),
+	}), iter.Value())
+
+	require.True(t, iter.Next())
+	require.Equal(t, stackitem.NewStruct([]stackitem.Item{
+		stackitem.Make("testdomain.com"), stackitem.Make(int64(nns.SOA)),
+		stackitem.NewBuffer([]byte(expSOA)), stackitem.Make(new(big.Int)),
+	}), iter.Value())
+
+	require.True(t, iter.Next())
+	require.Equal(t, stackitem.NewStruct([]stackitem.Item{
+		stackitem.Make("testdomain.com"), stackitem.Make(int64(nns.TXT)),
+		stackitem.Make("first TXT record"), stackitem.Make(new(big.Int)),
+	}), iter.Value())
+
+	require.False(t, iter.Next())
+}
+
+func TestNNSSetAdmin(t *testing.T) {
+	bc := NewChain(t)
+	h := DeployContract(t, bc, nnsPath, nil)
+
+	tx := PrepareInvoke(t, bc, CommitteeAcc, h, "addRoot", "com")
+	AddBlockCheckHalt(t, bc, tx)
+
+	refresh, retry, expire, ttl := int64(101), int64(102), int64(103), int64(104)
+	tx = PrepareInvoke(t, bc, CommitteeAcc, h, "register",
+		"testdomain.com", CommitteeAcc.Contract.ScriptHash(),
+		"myemail@nspcc.ru", refresh, retry, expire, ttl)
+	AddBlockCheckHalt(t, bc, tx)
+
+	acc := NewAccount(t, bc)
+
+	tx = PrepareInvoke(t, bc, acc, h, "addRecord",
+		"testdomain.com", int64(nns.TXT), "won't be added")
+	AddBlock(t, bc, tx)
+	CheckFault(t, bc, tx.Hash(), "not witnessed by admin")
+
+	tx = PrepareInvoke(t, bc, []*wallet.Account{CommitteeAcc, acc}, h, "setAdmin",
+		"testdomain.com", acc.Contract.ScriptHash())
+	AddBlockCheckHalt(t, bc, tx)
+
+	tx = PrepareInvoke(t, bc, acc, h, "addRecord",
+		"testdomain.com", int64(nns.TXT), "will be added")
+	AddBlockCheckHalt(t, bc, tx)
+}
+
+func TestNNSRenew(t *testing.T) {
+	bc := NewChain(t)
+	h := DeployContract(t, bc, nnsPath, nil)
+
+	tx := PrepareInvoke(t, bc, CommitteeAcc, h, "addRoot", "com")
+	AddBlockCheckHalt(t, bc, tx)
+
+	acc := NewAccount(t, bc)
+	refresh, retry, expire, ttl := int64(101), int64(102), int64(103), int64(104)
+	tx = PrepareInvoke(t, bc, []*wallet.Account{CommitteeAcc, acc}, h, "register",
+		"testdomain.com", acc.Contract.ScriptHash(),
+		"myemail@nspcc.ru", refresh, retry, expire, ttl)
+	b := AddBlockCheckHalt(t, bc, tx)
+
+	tx = PrepareInvoke(t, bc, acc, h, "renew", "testdomain.com")
+	AddBlockCheckHalt(t, bc, tx)
+
+	const msPerYear = 365 * 24 * time.Hour / time.Millisecond
+
+	tx = PrepareInvoke(t, bc, acc, h, "properties", "testdomain.com")
+	CheckTestInvoke(t, bc, tx, stackitem.NewMapWithValue([]stackitem.MapElement{
+		{stackitem.Make("name"), stackitem.Make("testdomain.com")},
+		{stackitem.Make("expiration"), stackitem.Make(b.Timestamp + 2*uint64(msPerYear))},
+	}))
+}