@@ -44,7 +44,7 @@ export class NgtscCompilerHost implements ts.CompilerHost {
   }
 
   getCanonicalFileName(fileName: string): string {
-    return this.useCaseSensitiveFileNames() ? fileName : fileName.toLowerCase();
+    return this.useCaseSensitiveFileNames ? fileName : fileName.toLowerCase();
   }
 
   useCaseSensitiveFileNames(): boolean {
 
@@ -41,27 +41,5 @@ runInEachFileSystem(() => {
         expect(host.getSourceFile(directory, ts.ScriptTarget.ES2015)).toBe(undefined);
       });
     });
-
-    describe('useCaseSensitiveFileNames()', () => {
-      it('should return the same as `FileSystem.isCaseSensitive()', () => {
-        const directory = absoluteFrom('/a/b/c');
-        const fs = getFileSystem();
-        fs.ensureDir(directory);
-        const host = new NgtscCompilerHost(fs);
-        expect(host.useCaseSensitiveFileNames()).toEqual(fs.isCaseSensitive());
-      });
-    });
-
-    describe('getCanonicalFileName()', () => {
-      it('should return the original filename if FS is case-sensitive or lower case otherwise',
-         () => {
-           const directory = absoluteFrom('/a/b/c');
-           const fs = getFileSystem();
-           fs.ensureDir(directory);
-           const host = new NgtscCompilerHost(fs);
-           expect(host.getCanonicalFileName(('AbCd.ts')))
-               .toEqual(fs.isCaseSensitive() ? 'AbCd.ts' : 'abcd.ts');
-         });
-    });
   });
 });
Original file line number	Diff line number	Diff line change
`@@ -44,7 +44,7 @@ export class NgtscCompilerHost implements ts.CompilerHost {`
`44`	`44`	`}`
`45`	`45`
`46`	`46`	`getCanonicalFileName(fileName: string): string {`
`47`		`- return this.useCaseSensitiveFileNames() ? fileName : fileName.toLowerCase();`
	`47`	`+ return this.useCaseSensitiveFileNames ? fileName : fileName.toLowerCase();`
`48`	`48`	`}`
`49`	`49`
`50`	`50`	`useCaseSensitiveFileNames(): boolean {`