Feat/improve test coverage 1 (#818)

Resolves #136 
Improves the test coverage in `blockstore-mock.ts` from 51.25% to 85%

| File Name            | Statements | Branches | Functions | Lines  |
|----------------------|------------|----------|-----------|--------|
| **Before:**          |            |          |           |        |
| All files            |   99.05    |   97.55  |   96.04   |  99.05 |
| blockstore-mock.ts   |   51.25    |   100    |   8.33    |  51.25 |
| **After:**           |            |          |           |        |
| All files            |   99.29    |   97.57  |   97.7    |  99.29 |
| blockstore-mock.ts   |   85       |   100    |   75      |  85    |

tests/store/blockstore-mock.spec.ts

@@ -1,5 +1,10 @@
+import * as Block from 'multiformats/block';
+import * as Raw from 'multiformats/codecs/raw';
+import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import chai, { expect } from 'chai';
+import { CID } from 'multiformats/cid';
+import { expect } from 'chai';
+import { sha256 } from 'multiformats/hashes/sha2';
 
 import { BlockstoreMock } from '../../src/store/blockstore-mock.js';
 import { DataStream } from '../../src/index.js';
@@ -10,6 +15,12 @@ import { TestDataGenerator } from '../utils/test-data-generator.js';
 chai.use(chaiAsPromised);
 
 describe('BlockstoreMock', () => {
+  let blockstore: BlockstoreMock;
+
+  beforeEach(() => {
+    blockstore = new BlockstoreMock();
+  });
+
   it('should facilitate the same CID computation as other implementations', async () => {
 
     let dataSizeInBytes = 10;
@@ -40,4 +51,84 @@ describe('BlockstoreMock', () => {
       dataSizeInBytes *= 10;
     }
   });
+
+  it('should implement get method', async () => {
+    const cid = CID.parse('bafybeigdyrzt5sfp7udm7hu76uh7y26nf3efuylqabf3oclgtqy55fbzdi');
+    const result = await blockstore.get(cid);
+    expect(result).to.be.instanceof(Uint8Array);
+    expect(result.length).to.equal(0);
+  });
+
+  it('should implement has method', async () => {
+    const cid = CID.parse('bafybeigdyrzt5sfp7udm7hu76uh7y26nf3efuylqabf3oclgtqy55fbzdi');
+    const result = await blockstore.has(cid);
+    expect(result).to.be.false;
+  });
+
+  it('should implement delete method', async () => {
+    const cid = CID.parse('bafybeigdyrzt5sfp7udm7hu76uh7y26nf3efuylqabf3oclgtqy55fbzdi');
+    await expect(blockstore.delete(cid)).to.be.fulfilled;
+  });
+
+  it('should implement isEmpty method', async () => {
+    const result = await blockstore.isEmpty();
+    expect(result).to.be.true;
+  });
+
+  it('should implement putMany method', async () => {
+    const block1 = await Block.encode({ value: new TextEncoder().encode('test1'), codec: Raw, hasher: sha256 });
+    const block2 = await Block.encode({ value: new TextEncoder().encode('test2'), codec: Raw, hasher: sha256 });
+    const source = [
+      { cid: block1.cid, block: block1.bytes },
+      { cid: block2.cid, block: block2.bytes }
+    ];
+
+    const results = [];
+    for await (const cid of blockstore.putMany(source)) {
+      results.push(cid);
+    }
+
+    expect(results).to.have.lengthOf(2);
+    expect(results[0]).to.deep.equal(block1.cid);
+    expect(results[1]).to.deep.equal(block2.cid);
+  });
+
+  it('should implement getMany method', async () => {
+    const cid1 = CID.parse('bafybeigdyrzt5sfp7udm7hu76uh7y26nf3efuylqabf3oclgtqy55fbzdi');
+    const cid2 = CID.parse('bafkreifjjcie6lypi6ny7amxnfftagclbuxndqonfipmb64f2km2devei4');
+    const source = [cid1, cid2];
+
+    const results = [];
+    for await (const pair of blockstore.getMany(source)) {
+      results.push(pair);
+    }
+
+    expect(results).to.have.lengthOf(2);
+    expect(results[0].cid).to.deep.equal(cid1);
+    expect(results[0].block).to.be.instanceof(Uint8Array);
+    expect(results[0].block.length).to.equal(0);
+    expect(results[1].cid).to.deep.equal(cid2);
+    expect(results[1].block).to.be.instanceof(Uint8Array);
+    expect(results[1].block.length).to.equal(0);
+  });
+
+  it('should implement deleteMany method', async () => {
+    const cid1 = CID.parse('bafybeigdyrzt5sfp7udm7hu76uh7y26nf3efuylqabf3oclgtqy55fbzdi');
+    const cid2 = CID.parse('bafkreifjjcie6lypi6ny7amxnfftagclbuxndqonfipmb64f2km2devei4');
+    const source = [cid1, cid2];
+
+    const results = [];
+    for await (const cid of blockstore.deleteMany(source)) {
+      results.push(cid);
+    }
+
+    expect(results).to.have.lengthOf(2);
+    expect(results[0]).to.deep.equal(cid1);
+    expect(results[1]).to.deep.equal(cid2);
+  });
+
+  it('should implement clear method', async () => {
+    await expect(blockstore.clear()).to.be.fulfilled;
+  });
+
 });