clean brittle tests (#9)

Reviewed-on: #9
Reviewed-by: xtul <mpiasecki720@protonmail.com>
Co-authored-by: vickydotbat <vickydotbat@tutamail.com>
Co-committed-by: vickydotbat <vickydotbat@tutamail.com>

internal/changelog/changelog_test.go

@@ -178,11 +178,17 @@ func TestGenerateIncludesPullRequestsAndDirectPushes(t *testing.T) {
 	}
 
 	rendered := stdout.String()
-	if !strings.Contains(rendered, "- Add release summary ([#12]("+repoURL+"/pulls/12)) - From Patch Author") {
-		t.Fatalf("rendered changelog missing pull entry:\n%s", rendered)
-	}
-	if !strings.Contains(rendered, "- Fix direct push handling (["+shortCommitHash(directHash)+"]("+repoURL+"/commit/"+directHash+")) - From Test User") {
-		t.Fatalf("rendered changelog missing direct-push entry:\n%s", rendered)
+	for _, want := range []string{
+		"Add release summary",
+		repoURL + "/pulls/12",
+		"Patch Author",
+		"Fix direct push handling",
+		repoURL + "/commit/" + directHash,
+		"Test User",
+	} {
+		if !strings.Contains(rendered, want) {
+			t.Errorf("rendered changelog missing %q:\n%s", want, rendered)
+		}
 	}
 	if pullRequests != 1 {
 		t.Fatalf("expected 1 pull lookup, got %d", pullRequests)
@@ -192,7 +198,7 @@ func TestGenerateIncludesPullRequestsAndDirectPushes(t *testing.T) {
 func runGit(t *testing.T, repoRoot string, args ...string) string {
 	t.Helper()
 
-	cmd := exec.Command("git", args...)
+	cmd := exec.Command("git", append([]string{"-c", "commit.gpgsign=false", "-c", "tag.gpgsign=false"}, args...)...)
 	cmd.Dir = repoRoot
 	output, err := cmd.CombinedOutput()
 	if err != nil {