1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
import { addHexPrefix } from 'ethereumjs-util';
import * as fs from 'fs';
import { Collector } from 'istanbul';
import * as _ from 'lodash';
import * as path from 'path';
import { collectContractsData } from './collect_contract_data';
import { collectCoverageEntries } from './collect_coverage_entries';
import { constants } from './constants';
import { parseSourceMap } from './source_maps';
import {
BranchCoverage,
BranchDescription,
BranchMap,
ContractData,
Coverage,
FnMap,
FunctionCoverage,
FunctionDescription,
LineColumn,
SingleFileSourceRange,
SourceRange,
StatementCoverage,
StatementDescription,
StatementMap,
TraceInfo,
TraceInfoExistingContract,
TraceInfoNewContract,
} from './types';
import { utils } from './utils';
export class CoverageManager {
private _sourcesPath: string;
private _traceInfos: TraceInfo[] = [];
private _contractsData: ContractData[] = [];
private _getContractCodeAsync: (address: string) => Promise<string>;
constructor(
artifactsPath: string,
sourcesPath: string,
getContractCodeAsync: (address: string) => Promise<string>,
) {
this._getContractCodeAsync = getContractCodeAsync;
this._sourcesPath = sourcesPath;
this._contractsData = collectContractsData(artifactsPath, this._sourcesPath);
}
public appendTraceInfo(traceInfo: TraceInfo): void {
this._traceInfos.push(traceInfo);
}
public async writeCoverageAsync(): Promise<void> {
const finalCoverage = await this._computeCoverageAsync();
const jsonReplacer: null = null;
const numberOfJsonSpaces = 4;
const stringifiedCoverage = JSON.stringify(finalCoverage, jsonReplacer, numberOfJsonSpaces);
fs.writeFileSync('coverage/coverage.json', stringifiedCoverage);
}
private _getSingleFileCoverageForTrace(
contractData: ContractData,
coveredPcs: number[],
pcToSourceRange: { [programCounter: number]: SourceRange },
fileIndex: number,
): Coverage {
const fileName = contractData.sources[fileIndex];
const coverageEntriesDescription = collectCoverageEntries(contractData.sourceCodes[fileIndex]);
let sourceRanges = _.map(coveredPcs, coveredPc => pcToSourceRange[coveredPc]);
sourceRanges = _.compact(sourceRanges); // Some PC's don't map to a source range and we just ignore them.
// By default lodash does a shallow object comparasion. We JSON.stringify them and compare as strings.
sourceRanges = _.uniqBy(sourceRanges, s => JSON.stringify(s)); // We don't care if one PC was covered multiple times within a single transaction
sourceRanges = _.filter(sourceRanges, sourceRange => sourceRange.fileName === fileName);
const branchCoverage: BranchCoverage = {};
const branchIds = _.keys(coverageEntriesDescription.branchMap);
for (const branchId of branchIds) {
const branchDescription = coverageEntriesDescription.branchMap[branchId];
const isCoveredByBranchIndex = _.map(branchDescription.locations, location =>
_.some(sourceRanges, range => utils.isRangeInside(range.location, location)),
);
branchCoverage[branchId] = isCoveredByBranchIndex;
}
const statementCoverage: StatementCoverage = {};
const statementIds = _.keys(coverageEntriesDescription.statementMap);
for (const statementId of statementIds) {
const statementDescription = coverageEntriesDescription.statementMap[statementId];
const isCovered = _.some(sourceRanges, range => utils.isRangeInside(range.location, statementDescription));
statementCoverage[statementId] = isCovered;
}
const functionCoverage: FunctionCoverage = {};
const functionIds = _.keys(coverageEntriesDescription.fnMap);
for (const fnId of functionIds) {
const functionDescription = coverageEntriesDescription.fnMap[fnId];
const isCovered = _.some(sourceRanges, range =>
utils.isRangeInside(range.location, functionDescription.loc),
);
functionCoverage[fnId] = isCovered;
}
// HACK: Solidity doesn't emit any opcodes that map back to modifiers with no args, that's why we map back to the
// function range and check if there is any covered statement within that range.
for (const modifierStatementId of coverageEntriesDescription.modifiersStatementIds) {
if (statementCoverage[modifierStatementId]) {
// Already detected as covered
continue;
}
const modifierDescription = coverageEntriesDescription.statementMap[modifierStatementId];
const enclosingFunction = _.find(coverageEntriesDescription.fnMap, functionDescription =>
utils.isRangeInside(modifierDescription, functionDescription.loc),
) as FunctionDescription;
const isModifierCovered = _.some(
coverageEntriesDescription.statementMap,
(statementDescription: StatementDescription, statementId: number) => {
const isInsideTheModifierEnclosingFunction = utils.isRangeInside(
statementDescription,
enclosingFunction.loc,
);
const isCovered = statementCoverage[statementId];
return isInsideTheModifierEnclosingFunction && isCovered;
},
);
statementCoverage[modifierStatementId] = isModifierCovered;
}
const absoluteFileName = path.join(this._sourcesPath, fileName);
const partialCoverage = {
[absoluteFileName]: {
...coverageEntriesDescription,
l: {}, // It's able to derive it from statement coverage
path: absoluteFileName,
f: functionCoverage,
s: statementCoverage,
b: branchCoverage,
},
};
return partialCoverage;
}
private async _computeCoverageAsync(): Promise<Coverage> {
const collector = new Collector();
for (const traceInfo of this._traceInfos) {
if (traceInfo.address !== constants.NEW_CONTRACT) {
// Runtime transaction
let runtimeBytecode = (traceInfo as TraceInfoExistingContract).runtimeBytecode;
runtimeBytecode = addHexPrefix(runtimeBytecode);
const contractData = _.find(this._contractsData, { runtimeBytecode }) as ContractData;
if (_.isUndefined(contractData)) {
throw new Error(`Transaction to an unknown address: ${traceInfo.address}`);
}
const bytecodeHex = contractData.runtimeBytecode.slice(2);
const sourceMap = contractData.sourceMapRuntime;
const pcToSourceRange = parseSourceMap(
contractData.sourceCodes,
sourceMap,
bytecodeHex,
contractData.sources,
);
for (let fileIndex = 0; fileIndex < contractData.sources.length; fileIndex++) {
const singleFileCoverageForTrace = this._getSingleFileCoverageForTrace(
contractData,
traceInfo.coveredPcs,
pcToSourceRange,
fileIndex,
);
collector.add(singleFileCoverageForTrace);
}
} else {
// Contract creation transaction
let bytecode = (traceInfo as TraceInfoNewContract).bytecode;
bytecode = addHexPrefix(bytecode);
const contractData = _.find(this._contractsData, contractDataCandidate =>
bytecode.startsWith(contractDataCandidate.bytecode),
) as ContractData;
if (_.isUndefined(contractData)) {
throw new Error(`Unknown contract creation transaction`);
}
const bytecodeHex = contractData.bytecode.slice(2);
const sourceMap = contractData.sourceMap;
const pcToSourceRange = parseSourceMap(
contractData.sourceCodes,
sourceMap,
bytecodeHex,
contractData.sources,
);
for (let fileIndex = 0; fileIndex < contractData.sources.length; fileIndex++) {
const singleFileCoverageForTrace = this._getSingleFileCoverageForTrace(
contractData,
traceInfo.coveredPcs,
pcToSourceRange,
fileIndex,
);
collector.add(singleFileCoverageForTrace);
}
}
}
return collector.getFinalCoverage();
}
}
|
