iteration

iteration/repeat.go

@@ -0,0 +1,11 @@
+package iteration
+
+const repeatCount = 5
+
+func Repeat(character string) string {
+  var repeated string
+  for i := 0; i < repeatCount; i++ {
+    repeated += character
+  }
+  return repeated
+}

iteration/repeat_test.go

@@ -0,0 +1,18 @@
+package iteration
+
+import "testing"
+
+func TestRepeat(t *testing.T) {
+  repeated := Repeat("a")
+  expected := "aaaaa"
+
+  if repeated != expected {
+    t.Errorf("expected %q but got %q", expected, repeated)
+  }
+}
+
+func BenchmarkRepeat(b *testing.B) {
+  for i := 0; i < b.N; i++ {
+    Repeat("a")
+  }
+}