From 2a22781012ea8da7e8813ca5c940ed0a323f8058 Mon Sep 17 00:00:00 2001
From: Zach Burgess <zachburg@google.com>
Date: Thu, 10 Jul 2025 13:26:59 -0700
Subject: [PATCH] Improve test coverage for `semver.go`

---
 semver_test.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/semver_test.go b/semver_test.go
index 53d3c8be..1c5c05fa 100644
--- a/semver_test.go
+++ b/semver_test.go
@@ -17,6 +17,16 @@ func TestSemverCompare(t *testing.T) {
 	}
 }
 
+func TestSemverCompareErr(t *testing.T) {
+	tests := map[string]string{
+		`{{ semverCompare "badConstraint" "1.2.3" }}`: `false`,
+		`{{ semverCompare "1.2.0" "badVersion" }}`:    `false`,
+	}
+	for tpl, expect := range tests {
+		assert.Error(t, runt(tpl, expect))
+	}
+}
+
 func TestSemver(t *testing.T) {
 	tests := map[string]string{
 		`{{ $s := semver "1.2.3-beta.1+c0ff33" }}{{ $s.Prerelease }}`: "beta.1",