feat(profile): add String()

Add String() to Profile. Profile already has Get(), but that can be
awkward to use since you need to check the error. A lot of the time that
is unnecessary since you're comparing the string to a specific value;
besides the error can only occur when the profile is uninitialized.

Signed-off-by: setrofim <setrofim@gmail.com>

Author: setrofim

profile.go

@@ -61,7 +61,8 @@ func (s *Profile) Set(urlOrOID string) error {
 	return s.decodeProfileFromString(urlOrOID)
 }
 
-// Get returns the profile as string (URI or dotted-decimal OID)
+// Get returns the profile as string (URI or dotted-decimal OID). If the
+// profile is invalid, an error is returned.
 func (s Profile) Get() (string, error) {
 	switch t := s.val.(type) {
 	case *url.URL:
@@ -73,6 +74,13 @@ func (s Profile) Get() (string, error) {
 	}
 }
 
+// Get returns the profile as string (URI or dotted-decimal OID). If the
+// profile is invalid, an empty string is returned.
+func (s Profile) String() string {
+	ret, _ := s.Get()
+	return ret
+}
+
 // IsURI checks whether a stored profile is a URI
 func (s Profile) IsURI() bool {
 	_, ok := s.val.(*url.URL)

profile_test.go

@@ -364,3 +364,14 @@ func TestMustNewProfile(t *testing.T) {
 		_ = MustNewProfile("@@@")
 	})
 }
+
+func TestProfile_String(t *testing.T) {
+	profile := MustNewProfile("1.2.3.4")
+	assert.Equal(t, "1.2.3.4", profile.String())
+
+	profile = MustNewProfile("http://example.com")
+	assert.Equal(t, "http://example.com", profile.String())
+
+	profile = &Profile{}
+	assert.Equal(t, "", profile.String())
+}