added some test cases for parsing zip64 extra fields

Author: Thomas Benndorf

test/zip64.js

@@ -9,6 +9,7 @@ const temp = require('temp');
 const UNCOMPRESSED_SIZE = 5368709120;
 const ZIP64_OFFSET = 72;
 const ZIP64_SIZE = 36;
+const ZIP64_EXTRA_FIELD_OFFSET = 0;
 
 t.test('Correct uncompressed size for zip64', function (t) {
   const archive = path.join(__dirname, '../testData/big.zip');
@@ -43,7 +44,77 @@ t.test('Correct uncompressed size for zip64', function (t) {
   t.end();
 });
 
-t.test('Parse files from zip64 format correctly', function (t) {
+t.test('Parse files with all zip64 extra fields correctly', function (t) {
+  const archive = path.join(__dirname, '../testData/zip64-allextrafields.zip');
+
+  t.test('in unzipper.Open', function(t) {
+    unzip.Open.file(archive)
+      .then(function(d) {
+        d.files[0].stream()
+          .on('vars', function(vars) {
+            t.same(vars.extra.uncompressedSize, ZIP64_SIZE, 'Open: Extra field');
+            t.same(vars.extra.compressedSize, ZIP64_SIZE, 'Open: Extra field');
+            t.same(vars.extra.offsetToLocalFileHeader, ZIP64_EXTRA_FIELD_OFFSET, 'Open: Extra field');
+            t.same(vars.uncompressedSize, ZIP64_SIZE, 'Open: File header');
+            t.same(vars.compressedSize, ZIP64_SIZE, 'Open: File header');
+            t.same(vars.offsetToLocalFileHeader, ZIP64_EXTRA_FIELD_OFFSET, 'Open: File header');
+            t.end();
+          })
+          .on('error', function(e) {
+            t.same(e.message, 'FILE_ENDED');
+            t.end();
+          });
+      });
+  });
+
+  t.test('in unzipper.extract', function (t) {
+    temp.mkdir('node-unzip-', function (err, dirPath) {
+      if (err) {
+        throw err;
+      }
+      fs.createReadStream(archive)
+        .pipe(unzip.Extract({ path: dirPath }))
+        .on('close', function() { t.end(); });
+    });
+  });
+
+  t.end();
+});
+
+t.test('Parse files with zip64 extra field with only offset length correctly', function (t) {
+  const archive = path.join(__dirname, '../testData/zip64-extrafieldoffsetlength.zip');
+
+  t.test('in unzipper.Open', function(t) {
+    unzip.Open.file(archive)
+      .then(function(d) {
+        d.files[0].stream()
+          .on('vars', function(vars) {
+            t.same(vars.extra.offsetToLocalFileHeader, ZIP64_EXTRA_FIELD_OFFSET, 'Open: Extra field');
+            t.same(vars.offsetToLocalFileHeader, ZIP64_EXTRA_FIELD_OFFSET, 'Open: File header');
+            t.end();
+          })
+          .on('error', function(e) {
+            t.same(e.message, 'FILE_ENDED');
+            t.end();
+          });
+      });
+  });
+
+  t.test('in unzipper.extract', function (t) {
+    temp.mkdir('node-unzip-', function (err, dirPath) {
+      if (err) {
+        throw err;
+      }
+      fs.createReadStream(archive)
+        .pipe(unzip.Extract({ path: dirPath }))
+        .on('close', function() { t.end(); });
+    });
+  });
+
+  t.end();
+});
+
+t.test('Parse files from regular zip64 format correctly', function (t) {
   const archive = path.join(__dirname, '../testData/zip64.zip');
 
   t.test('in unzipper.Open', function(t) {