From 1bece3a7921b7f11deaf5ea20b41558b110f908b Mon Sep 17 00:00:00 2001
From: Lovell Fuller <github@lovell.info>
Date: Sun, 1 May 2016 09:43:03 +0100
Subject: [PATCH] Add 2 channel (grey+alpha) GIF test case #375

---
 test/fixtures/grey-plus-alpha.gif | Bin 0 -> 43 bytes
 test/fixtures/index.js            |   1 +
 test/unit/io.js                   |  18 ++++++++++++++++++
 test/unit/metadata.js             |  15 +++++++--------
 4 files changed, 26 insertions(+), 8 deletions(-)
 create mode 100644 test/fixtures/grey-plus-alpha.gif

diff --git a/test/fixtures/grey-plus-alpha.gif b/test/fixtures/grey-plus-alpha.gif
new file mode 100644
index 0000000000000000000000000000000000000000..7a4cb1e465eb329843b69971c5cdfa60d4ae1c6b
GIT binary patch
literal 43
tcmZ?wbhEHbWMW`sXkcJSO-=p(|G(l-7Dfi3fDQu?fMgh$m|VCRtO4R<2s8iy

literal 0
HcmV?d00001

diff --git a/test/fixtures/index.js b/test/fixtures/index.js
index 57924121..73048b30 100644
--- a/test/fixtures/index.js
+++ b/test/fixtures/index.js
@@ -85,6 +85,7 @@ module.exports = {
   inputWebPWithTransparency: getPath('5_webp_a.webp'), // http://www.gstatic.com/webp/gallery3/5_webp_a.webp
   inputTiff: getPath('G31D.TIF'), // http://www.fileformat.info/format/tiff/sample/e6c9a6e5253348f4aef6d17b534360ab/index.htm
   inputGif: getPath('Crash_test.gif'), // http://upload.wikimedia.org/wikipedia/commons/e/e3/Crash_test.gif
+  inputGifGreyPlusAlpha: getPath('grey-plus-alpha.gif'), // http://i.imgur.com/gZ5jlmE.gif
   inputSvg: getPath('check.svg'), // http://dev.w3.org/SVG/tools/svgweb/samples/svg-files/check.svg
 
   inputSvs: getPath('CMU-1-Small-Region.svs'), // http://openslide.cs.cmu.edu/download/openslide-testdata/Aperio/CMU-1-Small-Region.svs
diff --git a/test/unit/io.js b/test/unit/io.js
index 0483a8db..77d44ff7 100644
--- a/test/unit/io.js
+++ b/test/unit/io.js
@@ -747,6 +747,24 @@ describe('Input/output', function() {
     });
   }
 
+  if (sharp.format.gif.input.file) {
+    it('Load GIF grey+alpha from file', function(done) {
+      sharp(fixtures.inputGifGreyPlusAlpha)
+        .resize(8, 4)
+        .png()
+        .toBuffer(function(err, data, info) {
+          if (err) throw err;
+          assert.strictEqual(true, data.length > 0);
+          assert.strictEqual(data.length, info.size);
+          assert.strictEqual('png', info.format);
+          assert.strictEqual(8, info.width);
+          assert.strictEqual(4, info.height);
+          assert.strictEqual(4, info.channels);
+          done();
+        });
+    });
+  }
+
   if (sharp.format.openslide.input.file) {
     it('Load Aperio SVS file via Openslide', function(done) {
       sharp(fixtures.inputSvs)
diff --git a/test/unit/metadata.js b/test/unit/metadata.js
index 66e089c8..b845fd67 100644
--- a/test/unit/metadata.js
+++ b/test/unit/metadata.js
@@ -150,17 +150,16 @@ describe('Image metadata', function() {
         done();
       });
     });
-  } else if (sharp.format.magick.input.file) {
-    it('GIF via libmagick', function(done) {
-      sharp(fixtures.inputGif).metadata(function(err, metadata) {
+    it('GIF grey+alpha via giflib', function(done) {
+      sharp(fixtures.inputGifGreyPlusAlpha).metadata(function(err, metadata) {
         if (err) throw err;
-        assert.strictEqual('magick', metadata.format);
-        assert.strictEqual(800, metadata.width);
-        assert.strictEqual(533, metadata.height);
-        assert.strictEqual(3, metadata.channels);
+        assert.strictEqual('gif', metadata.format);
+        assert.strictEqual(2, metadata.width);
+        assert.strictEqual(1, metadata.height);
+        assert.strictEqual(4, metadata.channels);
         assert.strictEqual('undefined', typeof metadata.density);
         assert.strictEqual(false, metadata.hasProfile);
-        assert.strictEqual(false, metadata.hasAlpha);
+        assert.strictEqual(true, metadata.hasAlpha);
         assert.strictEqual('undefined', typeof metadata.orientation);
         assert.strictEqual('undefined', typeof metadata.exif);
         assert.strictEqual('undefined', typeof metadata.icc);