object: patch, test patch on submodules

Author: mcuadros

plumbing/object/patch_test.go

@@ -0,0 +1,44 @@
+package object
+
+import (
+	. "gopkg.in/check.v1"
+	fixtures "gopkg.in/src-d/go-git-fixtures.v3"
+	"gopkg.in/src-d/go-git.v4/plumbing"
+	"gopkg.in/src-d/go-git.v4/storage/filesystem"
+)
+
+type PatchSuite struct {
+	BaseObjectsSuite
+}
+
+var _ = Suite(&PatchSuite{})
+
+func (s *PatchSuite) TestStatsWithSubmodules(c *C) {
+	storer, err := filesystem.NewStorage(
+		fixtures.ByURL("https://github.com/git-fixtures/submodule.git").One().DotGit())
+
+	commit, err := GetCommit(storer, plumbing.NewHash("b685400c1f9316f350965a5993d350bc746b0bf4"))
+
+	tree, err := commit.Tree()
+	c.Assert(err, IsNil)
+
+	e, err := tree.entry("basic")
+	c.Assert(err, IsNil)
+
+	ch := &Change{
+		From: ChangeEntry{
+			Name:      "basic",
+			Tree:      tree,
+			TreeEntry: *e,
+		},
+		To: ChangeEntry{
+			Name:      "basic",
+			Tree:      tree,
+			TreeEntry: *e,
+		},
+	}
+
+	p, err := getPatch("", ch)
+	c.Assert(err, IsNil)
+	c.Assert(p, NotNil)
+}