Add tests for sol-cov

1 files changed, 64 insertions, 0 deletions

diff --git a/packages/sol-cov/test/collect_coverage_entries_test.ts b/packages/sol-cov/test/collect_coverage_entries_test.ts
new file mode 100644
index 000000000..84451686f
--- /dev/null
+++ b/packages/sol-cov/test/collect_coverage_entries_test.ts
@@ -0,0 +1,64 @@
+import * as chai from 'chai';
+import * as fs from 'fs';
+import * as _ from 'lodash';
+import 'mocha';
+import * as path from 'path';
+
+import { collectCoverageEntries } from '../src/collect_coverage_entries';
+import { SingleFileSourceRange } from '../src/types';
+
+const expect = chai.expect;
+
+const getRange = (sourceCode: string, range: SingleFileSourceRange) => {
+    const lines = sourceCode.split('\n').slice(range.start.line - 1, range.end.line);
+    lines[lines.length - 1] = lines[lines.length - 1].slice(0, range.end.column);
+    lines[0] = lines[0].slice(range.start.column);
+    return lines.join('\n');
+};
+
+describe('Collect coverage entries', () => {
+    describe('#collectCoverageEntries', () => {
+        it('correctly collects coverage entries for Simplest contract', () => {
+            const simplestContractBaseName = 'Simplest.sol';
+            const simplestContractFileName = path.resolve(__dirname, 'fixtures/contracts', simplestContractBaseName);
+            const simplestContract = fs.readFileSync(simplestContractFileName).toString();
+            const coverageEntries = collectCoverageEntries(simplestContract);
+            expect(coverageEntries.fnMap).to.be.deep.equal({});
+            expect(coverageEntries.branchMap).to.be.deep.equal({});
+            expect(coverageEntries.statementMap).to.be.deep.equal({});
+            expect(coverageEntries.modifiersStatementIds).to.be.deep.equal([]);
+        });
+        it('correctly collects coverage entries for SimpleStorage contract', () => {
+            const simpleStorageContractBaseName = 'SimpleStorage.sol';
+            const simpleStorageContractFileName = path.resolve(
+                __dirname,
+                'fixtures/contracts',
+                simpleStorageContractBaseName,
+            );
+            const simpleStorageContract = fs.readFileSync(simpleStorageContractFileName).toString();
+            const coverageEntries = collectCoverageEntries(simpleStorageContract);
+            const fnIds = _.keys(coverageEntries.fnMap);
+            expect(coverageEntries.fnMap[fnIds[0]].name).to.be.equal('set');
+            expect(coverageEntries.fnMap[fnIds[0]].line).to.be.equal(3);
+            const setFunction = `function set(uint x) {
+        storedData = x;
+    }`;
+            expect(getRange(simpleStorageContract, coverageEntries.fnMap[fnIds[0]].loc)).to.be.equal(setFunction);
+            expect(coverageEntries.fnMap[fnIds[1]].name).to.be.equal('get');
+            expect(coverageEntries.fnMap[fnIds[1]].line).to.be.equal(6);
+            const getFunction = `function get() constant returns (uint retVal) {
+        return storedData;
+    }`;
+            expect(getRange(simpleStorageContract, coverageEntries.fnMap[fnIds[1]].loc)).to.be.equal(getFunction);
+            expect(coverageEntries.branchMap).to.be.deep.equal({});
+            const statementIds = _.keys(coverageEntries.statementMap);
+            expect(getRange(simpleStorageContract, coverageEntries.statementMap[statementIds[1]])).to.be.equal(
+                'storedData = x',
+            );
+            expect(getRange(simpleStorageContract, coverageEntries.statementMap[statementIds[3]])).to.be.equal(
+                'return storedData;',
+            );
+            expect(coverageEntries.modifiersStatementIds).to.be.deep.equal([]);
+        });
+    });
+});