| // Licensed to Apache Software Foundation (ASF) under one or more contributor |
| // license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright |
| // ownership. Apache Software Foundation (ASF) licenses this file to you under |
| // the Apache License, Version 2.0 (the "License"); you may |
| // not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| package bytes |
| |
| import ( |
| "testing" |
| ) |
| |
| func TestResizeOver(t *testing.T) { |
| testCases := []struct { |
| name string |
| input []byte |
| n int |
| wantLen int |
| wantCap int |
| }{ |
| {"Resize to Smaller Size", []byte{1, 2, 3}, 2, 2, 3}, |
| {"Resize to Larger Size", []byte{1, 2, 3}, 5, 5, 8}, |
| {"Resize to Same Size", []byte{1, 2, 3}, 3, 3, 3}, |
| {"Empty Slice Resize", []byte{}, 5, 5, 8}, |
| {"Resize to Zero Size", []byte{1, 2, 3}, 0, 0, 3}, |
| {"Resize to Large Power of 2", []byte{1, 2, 3}, 1024, 1024, 1024}, |
| } |
| |
| for _, tc := range testCases { |
| t.Run(tc.name, func(t *testing.T) { |
| resized := ResizeOver(tc.input, tc.n) |
| if got, want := len(resized), tc.wantLen; got != want { |
| t.Errorf("got length %d, want %d", got, want) |
| } |
| if got, want := cap(resized), tc.wantCap; got != want { |
| t.Errorf("got capacity %d, want %d", got, want) |
| } |
| }) |
| } |
| } |
| |
| func TestResizeExact(t *testing.T) { |
| testCases := []struct { |
| name string |
| input []byte |
| n int |
| wantLen int |
| wantCap int |
| }{ |
| {"Resize to Smaller Size", []byte{1, 2, 3}, 2, 2, 3}, |
| {"Resize to Larger Size", []byte{1, 2, 3}, 5, 5, 5}, |
| {"Resize to Same Size", []byte{1, 2, 3}, 3, 3, 3}, |
| {"Empty Slice Resize", []byte{}, 5, 5, 5}, |
| {"Resize to Zero Size", []byte{1, 2, 3}, 0, 0, 3}, |
| {"Resize to Large Size", []byte{1, 2, 3}, 1000, 1000, 1000}, |
| } |
| |
| for _, tc := range testCases { |
| t.Run(tc.name, func(t *testing.T) { |
| resized := ResizeExact(tc.input, tc.n) |
| if got, want := len(resized), tc.wantLen; got != want { |
| t.Errorf("got length %d, want %d", got, want) |
| } |
| if got, want := cap(resized), tc.wantCap; got != want { |
| t.Errorf("got capacity %d, want %d", got, want) |
| } |
| }) |
| } |
| } |
| |
| func TestRoundToNearestPow2(t *testing.T) { |
| testCases := []struct { |
| name string |
| input int |
| want int |
| }{ |
| {"Round to Nearest Pow2 (16)", 15, 16}, |
| {"Round to Nearest Pow2 (64)", 50, 64}, |
| {"Round to Nearest Pow2 (128)", 100, 128}, |
| {"Round to Nearest Pow2 (512)", 400, 512}, |
| {"Round to Nearest Pow2 (1024)", 900, 1024}, |
| } |
| |
| for _, tc := range testCases { |
| t.Run(tc.name, func(t *testing.T) { |
| got := roundToNearestPow2(tc.input) |
| if got != tc.want { |
| t.Errorf("got %d, want %d", got, tc.want) |
| } |
| }) |
| } |
| } |