added a FS test to open and read a file from the game-data dir

svn-id: r49948

engines/testbed/detection.cpp

@@ -50,7 +50,7 @@ public:
 			if (!file->isDirectory()) {
 				const char *gameName = file->getName().c_str();
  
-				if (0 == scumm_stricmp("README", gameName)) {
+				if (0 == scumm_stricmp("TESTBED", gameName)) {
 					// You could check the contents of the file now if you need to.
 					detectedGames.push_back(testbed_setting[0]);
 					break;

engines/testbed/fs.cpp

@@ -1,9 +1,61 @@
+#include "common/config-manager.h"
+#include "common/stream.h"
+
 #include "testbed/fs.h"
 
 namespace Testbed {
+/**
+ * This test does the following:
+ * 1) acquires the game-data path
+ * 2) In the game-data dir, there are three files: testbed, TeStBeD and TESTBED
+ * The former two are directories while the latter is a text file used for game engine detection
+ *
+ * Both the directories contain the file testbed.conf each which has a message written in it.
+ * The code accesses the appropriate file using the fileSystem API, creates a read stream of it and
+ * compares the message contained in it, with what it expects.
+ *
+ */
+bool FStests::testOpenFile() {
+	const Common::String &path = ConfMan.get("path");
+	Common::FSNode gameRoot(path);
+	
+	if (!gameRoot.isDirectory()) {
+		printf("LOG:game Path should be a directory");
+		return false;
+	}
+	
+	Common::FSNode subDir = gameRoot.getChild("TeStBeD");
+
+	if (!subDir.exists()) {
+		printf("LOG:Unable to recognize TeStBeD Inside the game Dir");
+		return false;
+	}
+	
+	Common::FSDirectory testBedDir(subDir);
+
+	Common::SeekableReadStream *readStream = testBedDir.createReadStreamForMember("testbed.conf");
+
+	if (!readStream) {
+		printf("LOG:Can't open game file for reading\n");
+		return false;
+	} 
+	
+	Common::String msg = readStream->readLine();
+	printf("LOG: Message Extracted: %s\n", msg.c_str());
+
+	Common::String expectedMsg = "It works!";
+
+	if (!msg.equals(expectedMsg)) {
+		printf("LOG: Can't read Correct data from file\n");
+		return false;
+	}
+
+	return true;
+}
+
 
 FSTestSuite::FSTestSuite() {
-	
+	addTest("openingFile", &FStests::testOpenFile);	
 }
 const char *FSTestSuite::getName() const {
 	return "File System";

engines/testbed/fs.h

@@ -10,6 +10,7 @@ namespace FStests {
 // Helper functions for FS tests
 
 // will contain function declarations for FS tests
+bool testOpenFile();
 // add more here
 }