Added basic external read file function test case

* ... as a test of how well we are able to test DOM structures
* required change of constructDocument visibility

1 files changed, 43 insertions, 0 deletions

diff --git a/tests/function_read_file.cc b/tests/function_read_file.cc
new file mode 100644
index 0000000..e0bb8da
--- /dev/null
+++ b/tests/function_read_file.cc
@@ -0,0 +1,43 @@
+#include "gtest/gtest.h"
+
+#include <xercesc/dom/DOMDocument.hpp>
+#include <xercesc/dom/DOMImplementation.hpp>
+#include <xercesc/dom/DOMElement.hpp>
+#include <xercesc/dom/DOMText.hpp>
+
+#include <string>
+
+#include "function/base.h"
+#include "function/read_file.h"
+
+typedef std::basic_string<XMLCh> XmlString;
+
+class FunctionReadFileTest : public ::testing::Test {
+	friend InputXSLT::FunctionReadFile;
+};
+
+TEST_F(FunctionReadFileTest, constructDocumentTest) {
+	const InputXSLT::FilesystemContext fsContext("../tests");
+	const boost::filesystem::path filePath(
+		fsContext.resolve("./function_read_file.cc")
+	);
+
+	InputXSLT::FunctionReadFile function;
+
+	xercesc::DOMDocument* const domDocument = function.constructDocument(
+		fsContext,
+		filePath
+	);
+
+	EXPECT_NE(domDocument, nullptr);
+
+	EXPECT_EQ(
+		XmlString(domDocument->getDocumentElement()->getNodeName()),
+		XmlString(reinterpret_cast<const XMLCh*>(u"content"))
+	);
+
+	EXPECT_EQ(
+		XmlString(domDocument->getDocumentElement()->getFirstChild()->getNodeName()),
+		XmlString(reinterpret_cast<const XMLCh*>(u"result"))
+	);
+}