1 files changed, 23 insertions, 0 deletions
diff --git a/src/mongo/gotools/vendor/src/github.com/smartystreets/assertions/filter.go b/src/mongo/gotools/vendor/src/github.com/smartystreets/assertions/filter.go
new file mode 100644
index 00000000000..ee368a97ed7
--- /dev/null
+++ b/src/mongo/gotools/vendor/src/github.com/smartystreets/assertions/filter.go
@@ -0,0 +1,23 @@
+package assertions
+
+import "fmt"
+
+const (
+	success                = ""
+	needExactValues        = "This assertion requires exactly %d comparison values (you provided %d)."
+	needNonEmptyCollection = "This assertion requires at least 1 comparison value (you provided 0)."
+)
+
+func need(needed int, expected []interface{}) string {
+	if len(expected) != needed {
+		return fmt.Sprintf(needExactValues, needed, len(expected))
+	}
+	return success
+}
+
+func atLeast(minimum int, expected []interface{}) string {
+	if len(expected) < 1 {
+		return needNonEmptyCollection
+	}
+	return success
+}