static std::vector<std::string> getExtensions (const glw::Functions& gl, ApiType apiType)
{
	using std::vector;
	using std::string;

	if (apiType.getProfile() == PROFILE_ES && apiType.getMajorVersion() == 2)
	{
		TCU_CHECK(gl.getString);

		const char*	extStr	= (const char*)gl.getString(GL_EXTENSIONS);
		GLU_EXPECT_NO_ERROR(gl.getError(), "glGetString(GL_EXTENSIONS)");

		if (extStr)
			return de::splitString(extStr);
		else
			throw tcu::TestError("glGetString(GL_EXTENSIONS) returned null pointer", DE_NULL, __FILE__, __LINE__);
	}
	else
	{
		int				numExtensions	= 0;
		vector<string>	extensions;

		TCU_CHECK(gl.getIntegerv && gl.getStringi);

		gl.getIntegerv(GL_NUM_EXTENSIONS, &numExtensions);
		GLU_EXPECT_NO_ERROR(gl.getError(), "glGetIntegerv(GL_NUM_EXTENSIONS)");

		if (numExtensions > 0)
		{
			extensions.resize(numExtensions);

			for (int ndx = 0; ndx < numExtensions; ndx++)
			{
				const char* const ext = (const char*)gl.getStringi(GL_EXTENSIONS, ndx);
				GLU_EXPECT_NO_ERROR(gl.getError(), "glGetStringi(GL_EXTENSIONS)");

				if (ext)
					extensions[ndx] = ext;
				else
					throw tcu::TestError("glGetStringi(GL_EXTENSIONS) returned null pointer", DE_NULL, __FILE__, __LINE__);
			}

		}

		return extensions;
	}
}
/** Verify if get* queries for GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT pname works as expected.
 *
 *  @param gl   OpenGL functions wrapper
 *
 *  @return Returns true if queries test passed, false otherwise.
 */
bool TextureFilterAnisotropicQueriesTestCase::verifyGet(const glw::Functions& gl)
{
	GLboolean bValue;
	GLint	 iValue;
	GLfloat   fValue;
	GLdouble  dValue;

	gl.getBooleanv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &bValue);
	GLU_EXPECT_NO_ERROR(gl.getError(), "getBooleanv");

	gl.getIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &iValue);
	GLU_EXPECT_NO_ERROR(gl.getError(), "getIntegerv");

	gl.getFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &fValue);
	GLU_EXPECT_NO_ERROR(gl.getError(), "getFloatv");

	if (glu::isContextTypeGLCore(m_context.getRenderContext().getType()))
	{
		gl.getDoublev(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &dValue);
		GLU_EXPECT_NO_ERROR(gl.getError(), "getDoublev");
	}

	return true;
}