|
| 1 | +import{of}from'../../../thingies'; |
| 2 | +import{memfs}from'../../../'; |
| 3 | + |
| 4 | +describe('.openAsBlob()',()=>{ |
| 5 | +it('can read a text file as blob',async()=>{ |
| 6 | +const{ fs}=memfs({'/dir/test.txt':'Hello, World!'}); |
| 7 | +constblob=awaitfs.openAsBlob('/dir/test.txt'); |
| 8 | +expect(blob).toBeInstanceOf(Blob); |
| 9 | +expect(blob.size).toBe(13); |
| 10 | +expect(blob.type).toBe(''); |
| 11 | + |
| 12 | +consttext=awaitblob.text(); |
| 13 | +expect(text).toBe('Hello, World!'); |
| 14 | +}); |
| 15 | + |
| 16 | +it('can read a binary file as blob',async()=>{ |
| 17 | +constbinaryData=Buffer.from([0x89,0x50,0x4e,0x47]);// PNG header |
| 18 | +const{ fs}=memfs({'/image.png':binaryData}); |
| 19 | +constblob=awaitfs.openAsBlob('/image.png'); |
| 20 | +expect(blob).toBeInstanceOf(Blob); |
| 21 | +expect(blob.size).toBe(4); |
| 22 | + |
| 23 | +constarrayBuffer=awaitblob.arrayBuffer(); |
| 24 | +constview=newUint8Array(arrayBuffer); |
| 25 | +expect(Array.from(view)).toEqual([0x89,0x50,0x4e,0x47]); |
| 26 | +}); |
| 27 | + |
| 28 | +it('can specify a mime type',async()=>{ |
| 29 | +const{ fs}=memfs({'/data.json':'{"key": "value"}'}); |
| 30 | +constblob=awaitfs.openAsBlob('/data.json',{type:'application/json'}); |
| 31 | +expect(blob).toBeInstanceOf(Blob); |
| 32 | +expect(blob.type).toBe('application/json'); |
| 33 | + |
| 34 | +consttext=awaitblob.text(); |
| 35 | +expect(text).toBe('{"key": "value"}'); |
| 36 | +}); |
| 37 | + |
| 38 | +it('handles empty files',async()=>{ |
| 39 | +const{ fs}=memfs({'/empty.txt':''}); |
| 40 | +constblob=awaitfs.openAsBlob('/empty.txt'); |
| 41 | +expect(blob).toBeInstanceOf(Blob); |
| 42 | +expect(blob.size).toBe(0); |
| 43 | + |
| 44 | +consttext=awaitblob.text(); |
| 45 | +expect(text).toBe(''); |
| 46 | +}); |
| 47 | + |
| 48 | +it('throws if file does not exist',async()=>{ |
| 49 | +const{ fs}=memfs({'/dir/test.txt':'content'}); |
| 50 | +const[,err]=awaitof(fs.openAsBlob('/dir/test-NOT-FOUND.txt')); |
| 51 | +expect(err).toBeInstanceOf(Error); |
| 52 | +expect((<any>err).code).toBe('ENOENT'); |
| 53 | +}); |
| 54 | + |
| 55 | +it('throws EISDIR if path is a directory',async()=>{ |
| 56 | +const{ fs}=memfs({'/dir/test.txt':'content'}); |
| 57 | +const[,err]=awaitof(fs.openAsBlob('/dir')); |
| 58 | +expect(err).toBeInstanceOf(Error); |
| 59 | +expect((<any>err).code).toBe('EISDIR'); |
| 60 | +}); |
| 61 | + |
| 62 | +it('works with Buffer paths',async()=>{ |
| 63 | +const{ fs}=memfs({'/test.txt':'buffer path test'}); |
| 64 | +constpathBuffer=Buffer.from('/test.txt'); |
| 65 | +constblob=awaitfs.openAsBlob(pathBuffer); |
| 66 | +expect(blob).toBeInstanceOf(Blob); |
| 67 | + |
| 68 | +consttext=awaitblob.text(); |
| 69 | +expect(text).toBe('buffer path test'); |
| 70 | +}); |
| 71 | + |
| 72 | +it('works with different path formats',async()=>{ |
| 73 | +const{ fs}=memfs({'/path-test.txt':'path format test'}); |
| 74 | +constblob=awaitfs.openAsBlob('/path-test.txt'); |
| 75 | +expect(blob).toBeInstanceOf(Blob); |
| 76 | + |
| 77 | +consttext=awaitblob.text(); |
| 78 | +expect(text).toBe('path format test'); |
| 79 | +}); |
| 80 | + |
| 81 | +it('handles large files',async()=>{ |
| 82 | +constlargeContent='x'.repeat(10000); |
| 83 | +const{ fs}=memfs({'/large.txt':largeContent}); |
| 84 | +constblob=awaitfs.openAsBlob('/large.txt'); |
| 85 | +expect(blob).toBeInstanceOf(Blob); |
| 86 | +expect(blob.size).toBe(10000); |
| 87 | + |
| 88 | +consttext=awaitblob.text(); |
| 89 | +expect(text).toBe(largeContent); |
| 90 | +}); |
| 91 | + |
| 92 | +it('can read file through symlink',async()=>{ |
| 93 | +const{ fs}=memfs({'/original.txt':'symlink test'}); |
| 94 | +fs.symlinkSync('/original.txt','/link.txt'); |
| 95 | + |
| 96 | +constblob=awaitfs.openAsBlob('/link.txt'); |
| 97 | +expect(blob).toBeInstanceOf(Blob); |
| 98 | + |
| 99 | +consttext=awaitblob.text(); |
| 100 | +expect(text).toBe('symlink test'); |
| 101 | +}); |
| 102 | +}); |