| package matchers |
| |
| import ( |
| "fmt" |
| |
| "github.com/onsi/gomega/format" |
| ) |
| |
| type HavePrefixMatcher struct { |
| Prefix string |
| Args []interface{} |
| } |
| |
| func (matcher *HavePrefixMatcher) Match(actual interface{}) (success bool, err error) { |
| actualString, ok := toString(actual) |
| if !ok { |
| return false, fmt.Errorf("HavePrefix matcher requires a string or stringer. Got:\n%s", format.Object(actual, 1)) |
| } |
| prefix := matcher.prefix() |
| return len(actualString) >= len(prefix) && actualString[0:len(prefix)] == prefix, nil |
| } |
| |
| func (matcher *HavePrefixMatcher) prefix() string { |
| if len(matcher.Args) > 0 { |
| return fmt.Sprintf(matcher.Prefix, matcher.Args...) |
| } |
| return matcher.Prefix |
| } |
| |
| func (matcher *HavePrefixMatcher) FailureMessage(actual interface{}) (message string) { |
| return format.Message(actual, "to have prefix", matcher.prefix()) |
| } |
| |
| func (matcher *HavePrefixMatcher) NegatedFailureMessage(actual interface{}) (message string) { |
| return format.Message(actual, "not to have prefix", matcher.prefix()) |
| } |