Added some more FileInputStream unit tests

modules/juce_core/files/juce_FileInputStream.cpp

@@ -89,63 +89,84 @@ struct FileInputStreamTests   : public UnitTest
 
     void runTest() override
     {
+        beginTest ("Open stream non-existent file");
+        {
+            auto tempFile = File::createTempFile (".txt");
+            expect (! tempFile.exists());
+
+            FileInputStream stream (tempFile);
+            expect (stream.failedToOpen());
+        }
+
+        beginTest ("Open stream existing file");
+        {
+            auto tempFile = File::createTempFile (".txt");
+            tempFile.create();
+            expect (tempFile.exists());
+
+            FileInputStream stream (tempFile);
+            expect (stream.openedOk());
+        }
+
         const MemoryBlock data ("abcdefghijklmnopqrstuvwxyz", 26);
         File f (File::createTempFile (".txt"));
         f.appendData (data.getData(), data.getSize());
         FileInputStream stream (f);
 
         beginTest ("Read");
-
-        expectEquals (stream.getPosition(), (int64) 0);
-        expectEquals (stream.getTotalLength(), (int64) data.getSize());
-        expectEquals (stream.getNumBytesRemaining(), stream.getTotalLength());
-        expect (! stream.isExhausted());
-
-        size_t numBytesRead = 0;
-        MemoryBlock readBuffer (data.getSize());
-
-        while (numBytesRead < data.getSize())
         {
-            numBytesRead += (size_t) stream.read (&readBuffer[numBytesRead], 3);
+            expectEquals (stream.getPosition(), (int64) 0);
+            expectEquals (stream.getTotalLength(), (int64) data.getSize());
+            expectEquals (stream.getNumBytesRemaining(), stream.getTotalLength());
+            expect (! stream.isExhausted());
 
-            expectEquals (stream.getPosition(), (int64) numBytesRead);
-            expectEquals (stream.getNumBytesRemaining(), (int64) (data.getSize() - numBytesRead));
-            expect (stream.isExhausted() == (numBytesRead == data.getSize()));
-        }
+            size_t numBytesRead = 0;
+            MemoryBlock readBuffer (data.getSize());
 
-        expectEquals (stream.getPosition(), (int64) data.getSize());
-        expectEquals (stream.getNumBytesRemaining(), (int64) 0);
-        expect (stream.isExhausted());
+            while (numBytesRead < data.getSize())
+            {
+                numBytesRead += (size_t) stream.read (&readBuffer[numBytesRead], 3);
 
-        expect (readBuffer == data);
+                expectEquals (stream.getPosition(), (int64) numBytesRead);
+                expectEquals (stream.getNumBytesRemaining(), (int64) (data.getSize() - numBytesRead));
+                expect (stream.isExhausted() == (numBytesRead == data.getSize()));
+            }
 
-        beginTest ("Skip");
+            expectEquals (stream.getPosition(), (int64) data.getSize());
+            expectEquals (stream.getNumBytesRemaining(), (int64) 0);
+            expect (stream.isExhausted());
 
-        stream.setPosition (0);
-        expectEquals (stream.getPosition(), (int64) 0);
-        expectEquals (stream.getTotalLength(), (int64) data.getSize());
-        expectEquals (stream.getNumBytesRemaining(), stream.getTotalLength());
-        expect (! stream.isExhausted());
-
-        numBytesRead = 0;
-        const int numBytesToSkip = 5;
+            expect (readBuffer == data);
+        }
 
-        while (numBytesRead < data.getSize())
+        beginTest ("Skip");
         {
-            stream.skipNextBytes (numBytesToSkip);
-            numBytesRead += numBytesToSkip;
-            numBytesRead = std::min (numBytesRead, data.getSize());
-
-            expectEquals (stream.getPosition(), (int64) numBytesRead);
-            expectEquals (stream.getNumBytesRemaining(), (int64) (data.getSize() - numBytesRead));
-            expect (stream.isExhausted() == (numBytesRead == data.getSize()));
+            stream.setPosition (0);
+            expectEquals (stream.getPosition(), (int64) 0);
+            expectEquals (stream.getTotalLength(), (int64) data.getSize());
+            expectEquals (stream.getNumBytesRemaining(), stream.getTotalLength());
+            expect (! stream.isExhausted());
+
+            size_t numBytesRead = 0;
+            const int numBytesToSkip = 5;
+
+            while (numBytesRead < data.getSize())
+            {
+                stream.skipNextBytes (numBytesToSkip);
+                numBytesRead += numBytesToSkip;
+                numBytesRead = std::min (numBytesRead, data.getSize());
+
+                expectEquals (stream.getPosition(), (int64) numBytesRead);
+                expectEquals (stream.getNumBytesRemaining(), (int64) (data.getSize() - numBytesRead));
+                expect (stream.isExhausted() == (numBytesRead == data.getSize()));
+            }
+
+            expectEquals (stream.getPosition(), (int64) data.getSize());
+            expectEquals (stream.getNumBytesRemaining(), (int64) 0);
+            expect (stream.isExhausted());
+
+            f.deleteFile();
         }
-
-        expectEquals (stream.getPosition(), (int64) data.getSize());
-        expectEquals (stream.getNumBytesRemaining(), (int64) 0);
-        expect (stream.isExhausted());
-
-        f.deleteFile();
     }
 };