fix: Add a test for PullRequest.ListChanges in Gitea

Signed-off-by: Andrew Bayer <[email protected]>

scm/driver/gitea/pr_test.go

@@ -7,6 +7,7 @@ package gitea
 import (
 	"context"
 	"encoding/json"
+	"github.com/stretchr/testify/assert"
 	"io/ioutil"
 	"testing"
 
@@ -122,12 +123,30 @@ func TestPullRequestMerge(t *testing.T) {
 // pull request change sub-tests
 //
 
-// TODO: Actually write a real test for generating changes from a patch
 func TestPullRequestChanges(t *testing.T) {
+	defer gock.Off()
+
+	gock.New("https://try.gitea.io").
+		Get("/api/v1/repos/go-gitea/gitea/pulls/1.patch").
+		Reply(204).
+		Type("text/plain").
+		File("testdata/pr_changes.patch")
+
+
 	client, _ := New("https://try.gitea.io")
-	_, _, err := client.PullRequests.ListChanges(context.Background(), "go-gitea/gitea", 1, scm.ListOptions{})
-	if err == scm.ErrNotSupported {
-		t.Errorf("Didn't expect Not Supported error")
+	got, _, err := client.PullRequests.ListChanges(context.Background(), "go-gitea/gitea", 1, scm.ListOptions{})
+	if err != nil {
+		t.Error(err)
+	}
+
+	want := []*scm.Change{}
+	raw, _ := ioutil.ReadFile("testdata/pr_changes.json.golden")
+	err = json.Unmarshal(raw, &want)
+	assert.NoError(t, err)
+
+	if diff := cmp.Diff(got, want); diff != "" {
+		t.Errorf("Unexpected Results")
+		t.Log(diff)
 	}
 }
 

scm/driver/gitea/testdata/pr_changes.json.golden

@@ -0,0 +1,13 @@
+[
+  {
+    "Path": "README",
+    "Added": true,
+    "Additions": 1
+  },
+  {
+    "Path": "script.sh",
+    "PreviousPath": "script.sh",
+    "Additions": 1,
+    "Deletions": 1
+  }
+]

scm/driver/gitea/testdata/pr_changes.patch

@@ -0,0 +1,30 @@
+From 3c716f1eb086c9039745e3cadf873c9cbbb481e5 Mon Sep 17 00:00:00 2001
+From: jenkins-x-bot <[email protected]>
+Date: Fri, 4 Sep 2020 15:16:56 +0000
+Subject: [PATCH] Adding for test PR
+
+---
+ README    | 1 +
+ script.sh | 2 +-
+ 2 files changed, 2 insertions(+), 1 deletion(-)
+ create mode 100644 README
+
+diff --git a/README b/README
+new file mode 100644
+index 0000000..70c379b
+--- /dev/null
++++ b/README
+@@ -0,0 +1 @@
++Hello world
+\ No newline at end of file
+diff --git a/script.sh b/script.sh
+index 4915bcb..2c42f17 100644
+--- a/script.sh
++++ b/script.sh
+@@ -1,3 +1,3 @@
+ #!/bin/bash
+
+-echo "This passes"
++echo "This has changed but still passes"
+--
+2.24.3