Attempt to read a non-existing file should throw ENOENT

I break it a bit in #174 😢
streamich · Jul 5, 2018 · 322a730 · 322a730
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commit 322a730
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Showing 2 changed files with 11 additions and 4 deletions.
diff --git a/src/__tests__/volume.test.ts b/src/__tests__/volume.test.ts
@@ -460,12 +460,16 @@ describe('volume', () => {
                     // TODO: Check the right error message.
                 }
             });
-            it('Attempt to read a directory should throw', () => {
+            it('Attempt to read a directory should throw EISDIR', () => {
                 const vol = new Volume;
                 vol.mkdirSync('/test');
                 const fn = () => vol.readFileSync('/test');
                 expect(fn).toThrowError('EISDIR');
             });
+            it('Attempt to read a non-existing file should throw ENOENT', () => {
+                const fn = () => vol.readFileSync('/pizza.txt');
+                expect(fn).toThrowError('ENOENT');
+            });
         });
         describe('.readFile(path[, options], callback)', () => {
             const vol = new Volume;

diff --git a/src/volume.ts b/src/volume.ts
@@ -1017,9 +1017,12 @@ export class Volume {
         } else {
             const steps = filenameToSteps(id as string);
             const link: Link = this.getResolvedLink(steps);    
-            const node = link.getNode();
-            if(node.isDirectory())
-                throwError(EISDIR, 'open', link.getPath());
+
+            if(link) {
+                const node = link.getNode();
+                if(node.isDirectory())
+                    throwError(EISDIR, 'open', link.getPath());
+            }
 
             fd = this.openSync(id as TFilePath, flagsNum);
         }