mirror of https://github.com/mum4k/termdash.git
982 lines
22 KiB
Go
982 lines
22 KiB
Go
// Copyright 2018 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package area
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import (
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"image"
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"testing"
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"github.com/kylelemons/godebug/pretty"
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)
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func TestSize(t *testing.T) {
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tests := []struct {
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desc string
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area image.Rectangle
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want image.Point
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}{
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{
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desc: "zero area",
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area: image.Rect(0, 0, 0, 0),
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want: image.Point{0, 0},
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},
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{
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desc: "1-D on X axis",
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area: image.Rect(0, 0, 1, 0),
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want: image.Point{1, 0},
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},
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{
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desc: "1-D on Y axis",
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area: image.Rect(0, 0, 0, 1),
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want: image.Point{0, 1},
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},
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{
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desc: "area with a single cell",
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area: image.Rect(0, 0, 1, 1),
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want: image.Point{1, 1},
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},
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{
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desc: "a rectangle",
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area: image.Rect(0, 0, 2, 3),
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want: image.Point{2, 3},
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},
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}
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for _, tc := range tests {
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t.Run(tc.desc, func(t *testing.T) {
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got := Size(tc.area)
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if diff := pretty.Compare(tc.want, got); diff != "" {
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t.Errorf("Size => unexpected diff (-want, +got):\n%s", diff)
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}
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})
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}
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}
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func TestFromSize(t *testing.T) {
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tests := []struct {
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desc string
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size image.Point
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want image.Rectangle
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wantErr bool
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}{
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{
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desc: "negative size on X axis",
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size: image.Point{-1, 0},
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wantErr: true,
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},
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{
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desc: "negative size on Y axis",
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size: image.Point{0, -1},
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wantErr: true,
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},
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{
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desc: "zero size",
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},
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{
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desc: "1-D on X axis",
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size: image.Point{1, 0},
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want: image.Rect(0, 0, 1, 0),
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},
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{
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desc: "1-D on Y axis",
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size: image.Point{0, 1},
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want: image.Rect(0, 0, 0, 1),
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},
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{
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desc: "a rectangle",
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size: image.Point{2, 3},
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want: image.Rect(0, 0, 2, 3),
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},
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}
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for _, tc := range tests {
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t.Run(tc.desc, func(t *testing.T) {
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got, err := FromSize(tc.size)
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if (err != nil) != tc.wantErr {
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t.Fatalf("FromSize => unexpected error: %v, wantErr: %v", err, tc.wantErr)
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}
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if err != nil {
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return
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}
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if diff := pretty.Compare(tc.want, got); diff != "" {
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t.Errorf("FromSize => unexpected diff (-want, +got):\n%s", diff)
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}
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})
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}
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}
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func TestHSplit(t *testing.T) {
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tests := []struct {
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desc string
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area image.Rectangle
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heightPerc int
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wantTop image.Rectangle
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wantBot image.Rectangle
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wantErr bool
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}{
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{
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desc: "fails on heightPerc too small",
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area: image.Rect(1, 1, 2, 2),
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heightPerc: -1,
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wantErr: true,
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},
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{
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desc: "fails on heightPerc too large",
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area: image.Rect(1, 1, 2, 2),
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heightPerc: 101,
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wantErr: true,
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},
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{
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desc: "zero area to begin with",
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area: image.ZR,
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heightPerc: 50,
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wantTop: image.ZR,
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wantBot: image.ZR,
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},
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{
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desc: "splitting results in zero height area on the top",
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area: image.Rect(1, 1, 2, 2),
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heightPerc: 0,
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wantTop: image.ZR,
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wantBot: image.Rect(1, 1, 2, 2),
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},
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{
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desc: "splitting results in zero height area on the bottom",
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area: image.Rect(1, 1, 2, 2),
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heightPerc: 100,
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wantTop: image.Rect(1, 1, 2, 2),
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wantBot: image.ZR,
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},
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{
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desc: "splits area with even height",
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area: image.Rect(1, 1, 3, 3),
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heightPerc: 50,
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wantTop: image.Rect(1, 1, 3, 2),
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wantBot: image.Rect(1, 2, 3, 3),
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},
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{
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desc: "splits area with odd height",
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area: image.Rect(1, 1, 4, 4),
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heightPerc: 50,
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wantTop: image.Rect(1, 1, 4, 2),
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wantBot: image.Rect(1, 2, 4, 4),
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},
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{
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desc: "splits to unequal areas",
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area: image.Rect(0, 0, 4, 4),
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heightPerc: 25,
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wantTop: image.Rect(0, 0, 4, 1),
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wantBot: image.Rect(0, 1, 4, 4),
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},
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}
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for _, tc := range tests {
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t.Run(tc.desc, func(t *testing.T) {
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gotTop, gotBot, err := HSplit(tc.area, tc.heightPerc)
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if (err != nil) != tc.wantErr {
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t.Errorf("VSplit => unexpected error:%v, wantErr:%v", err, tc.wantErr)
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}
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if diff := pretty.Compare(tc.wantTop, gotTop); diff != "" {
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t.Errorf("HSplit => first value unexpected diff (-want, +got):\n%s", diff)
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}
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if diff := pretty.Compare(tc.wantBot, gotBot); diff != "" {
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t.Errorf("HSplit => second value unexpected diff (-want, +got):\n%s", diff)
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}
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})
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}
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}
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func TestVSplit(t *testing.T) {
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tests := []struct {
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desc string
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area image.Rectangle
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widthPerc int
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wantLeft image.Rectangle
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wantRight image.Rectangle
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wantErr bool
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}{
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{
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desc: "fails on widthPerc too small",
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area: image.Rect(1, 1, 2, 2),
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widthPerc: -1,
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wantErr: true,
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},
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{
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desc: "fails on widthPerc too large",
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area: image.Rect(1, 1, 2, 2),
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widthPerc: 101,
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wantErr: true,
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},
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{
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desc: "zero area to begin with",
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area: image.ZR,
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widthPerc: 50,
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wantLeft: image.ZR,
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wantRight: image.ZR,
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},
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{
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desc: "splitting results in zero width area on the left",
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area: image.Rect(1, 1, 2, 2),
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widthPerc: 0,
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wantLeft: image.ZR,
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wantRight: image.Rect(1, 1, 2, 2),
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},
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{
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desc: "splitting results in zero width area on the right",
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area: image.Rect(1, 1, 2, 2),
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widthPerc: 100,
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wantLeft: image.Rect(1, 1, 2, 2),
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wantRight: image.ZR,
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},
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{
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desc: "splits area with even width",
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area: image.Rect(1, 1, 3, 3),
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widthPerc: 50,
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wantLeft: image.Rect(1, 1, 2, 3),
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wantRight: image.Rect(2, 1, 3, 3),
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},
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{
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desc: "splits area with odd width",
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area: image.Rect(1, 1, 4, 4),
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widthPerc: 50,
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wantLeft: image.Rect(1, 1, 2, 4),
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wantRight: image.Rect(2, 1, 4, 4),
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},
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{
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desc: "splits to unequal areas",
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area: image.Rect(0, 0, 4, 4),
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widthPerc: 25,
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wantLeft: image.Rect(0, 0, 1, 4),
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wantRight: image.Rect(1, 0, 4, 4),
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},
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}
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for _, tc := range tests {
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t.Run(tc.desc, func(t *testing.T) {
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gotLeft, gotRight, err := VSplit(tc.area, tc.widthPerc)
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if (err != nil) != tc.wantErr {
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t.Errorf("VSplit => unexpected error:%v, wantErr:%v", err, tc.wantErr)
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}
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if err != nil {
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return
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}
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if diff := pretty.Compare(tc.wantLeft, gotLeft); diff != "" {
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t.Errorf("VSplit => left value unexpected diff (-want, +got):\n%s", diff)
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}
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if diff := pretty.Compare(tc.wantRight, gotRight); diff != "" {
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t.Errorf("VSplit => right value unexpected diff (-want, +got):\n%s", diff)
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}
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})
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}
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}
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func TestVSplitCells(t *testing.T) {
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tests := []struct {
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desc string
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area image.Rectangle
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cells int
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wantLeft image.Rectangle
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wantRight image.Rectangle
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wantErr bool
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}{
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{
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desc: "fails on negative cells",
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area: image.Rect(1, 1, 2, 2),
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cells: -1,
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wantErr: true,
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},
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{
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desc: "returns area as left on cells too large",
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area: image.Rect(1, 1, 2, 2),
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cells: 2,
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wantLeft: image.Rect(1, 1, 2, 2),
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wantRight: image.ZR,
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},
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{
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desc: "returns area as left on cells equal area width",
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area: image.Rect(1, 1, 2, 2),
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cells: 1,
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wantLeft: image.Rect(1, 1, 2, 2),
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wantRight: image.ZR,
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},
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{
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desc: "returns area as right on zero cells",
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area: image.Rect(1, 1, 2, 2),
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cells: 0,
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wantRight: image.Rect(1, 1, 2, 2),
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wantLeft: image.ZR,
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},
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{
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desc: "zero area to begin with",
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area: image.ZR,
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cells: 0,
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wantLeft: image.ZR,
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wantRight: image.ZR,
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},
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{
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desc: "splits area with even width",
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area: image.Rect(1, 1, 3, 3),
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cells: 1,
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wantLeft: image.Rect(1, 1, 2, 3),
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wantRight: image.Rect(2, 1, 3, 3),
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},
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{
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desc: "splits area with odd width",
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area: image.Rect(1, 1, 4, 4),
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cells: 1,
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wantLeft: image.Rect(1, 1, 2, 4),
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wantRight: image.Rect(2, 1, 4, 4),
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},
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{
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desc: "splits to unequal areas",
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area: image.Rect(0, 0, 4, 4),
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cells: 3,
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wantLeft: image.Rect(0, 0, 3, 4),
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wantRight: image.Rect(3, 0, 4, 4),
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},
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}
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for _, tc := range tests {
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t.Run(tc.desc, func(t *testing.T) {
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gotLeft, gotRight, err := VSplitCells(tc.area, tc.cells)
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if (err != nil) != tc.wantErr {
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t.Errorf("VSplitCells => unexpected error:%v, wantErr:%v", err, tc.wantErr)
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}
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if err != nil {
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return
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}
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if diff := pretty.Compare(tc.wantLeft, gotLeft); diff != "" {
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t.Errorf("VSplitCells => left value unexpected diff (-want, +got):\n%s", diff)
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}
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if diff := pretty.Compare(tc.wantRight, gotRight); diff != "" {
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t.Errorf("VSplitCells => right value unexpected diff (-want, +got):\n%s", diff)
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}
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})
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}
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}
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func TestHSplitCells(t *testing.T) {
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tests := []struct {
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desc string
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area image.Rectangle
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cells int
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wantTop image.Rectangle
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wantBottom image.Rectangle
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wantErr bool
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}{
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{
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desc: "fails on negative cells",
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area: image.Rect(1, 1, 2, 2),
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cells: -1,
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wantErr: true,
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},
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{
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desc: "returns area as top on cells too large",
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area: image.Rect(1, 1, 2, 2),
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cells: 2,
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wantTop: image.Rect(1, 1, 2, 2),
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wantBottom: image.ZR,
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},
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{
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desc: "returns area as top on cells equal area width",
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area: image.Rect(1, 1, 2, 2),
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cells: 1,
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wantTop: image.Rect(1, 1, 2, 2),
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wantBottom: image.ZR,
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},
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{
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desc: "returns area as bottom on zero cells",
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area: image.Rect(1, 1, 2, 2),
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cells: 0,
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wantBottom: image.Rect(1, 1, 2, 2),
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wantTop: image.ZR,
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},
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{
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desc: "zero area to begin with",
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area: image.ZR,
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cells: 0,
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wantTop: image.ZR,
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wantBottom: image.ZR,
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},
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{
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desc: "splits area with even height",
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area: image.Rect(1, 1, 3, 3),
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cells: 1,
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wantTop: image.Rect(1, 1, 3, 2),
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wantBottom: image.Rect(1, 2, 3, 3),
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},
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{
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desc: "splits area with odd width",
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area: image.Rect(1, 1, 4, 4),
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cells: 1,
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wantTop: image.Rect(1, 1, 4, 2),
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wantBottom: image.Rect(1, 2, 4, 4),
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},
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{
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desc: "splits to unequal areas",
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area: image.Rect(0, 0, 4, 4),
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cells: 3,
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wantTop: image.Rect(0, 0, 4, 3),
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wantBottom: image.Rect(0, 3, 4, 4),
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},
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}
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for _, tc := range tests {
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t.Run(tc.desc, func(t *testing.T) {
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gotTop, gotBottom, err := HSplitCells(tc.area, tc.cells)
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if (err != nil) != tc.wantErr {
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t.Errorf("HSplitCells => unexpected error:%v, wantErr:%v", err, tc.wantErr)
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}
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if err != nil {
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return
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}
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if diff := pretty.Compare(tc.wantTop, gotTop); diff != "" {
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t.Errorf("HSplitCells => left value unexpected diff (-want, +got):\n%s", diff)
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}
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if diff := pretty.Compare(tc.wantBottom, gotBottom); diff != "" {
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t.Errorf("HSplitCells => right value unexpected diff (-want, +got):\n%s", diff)
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}
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})
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}
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}
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func TestExcludeBorder(t *testing.T) {
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tests := []struct {
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desc string
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area image.Rectangle
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want image.Rectangle
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}{
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{
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desc: "zero area to begin with",
|
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area: image.ZR,
|
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want: image.ZR,
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},
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{
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desc: "not enough space to exclude the border",
|
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area: image.Rect(1, 1, 2, 2),
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want: image.ZR,
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},
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{
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desc: "excluding the border results in zero size area",
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area: image.Rect(2, 2, 4, 4),
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want: image.Rect(3, 3, 3, 3),
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},
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{
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desc: "excludes the border",
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area: image.Rect(1, 1, 3, 4),
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want: image.Rect(2, 2, 2, 3),
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},
|
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}
|
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|
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for _, tc := range tests {
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t.Run(tc.desc, func(t *testing.T) {
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got := ExcludeBorder(tc.area)
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if diff := pretty.Compare(tc.want, got); diff != "" {
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t.Errorf("ExcludeBorder => unexpected diff (-want, +got):\n%s", diff)
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}
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})
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}
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}
|
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|
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func TestWithRatio(t *testing.T) {
|
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tests := []struct {
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desc string
|
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area image.Rectangle
|
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ratio image.Point
|
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want image.Rectangle
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}{
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{
|
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desc: "area is zero",
|
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area: image.ZR,
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ratio: image.Point{1, 1},
|
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want: image.ZR,
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},
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{
|
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desc: "ratio is zero",
|
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area: image.Rect(0, 0, 1, 1),
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ratio: image.ZP,
|
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want: image.ZR,
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},
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{
|
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desc: "there is no smaller area in the ratio",
|
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area: image.Rect(0, 0, 1, 1),
|
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ratio: image.Point{1, 2},
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want: image.ZR,
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},
|
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{
|
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desc: "already has the target ratio",
|
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area: image.Rect(0, 0, 10, 5),
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ratio: image.Point{2, 1},
|
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want: image.Rect(0, 0, 10, 5),
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},
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{
|
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desc: "scales to closest height",
|
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area: image.Rect(0, 0, 50, 25), // Ratio 2:1.
|
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ratio: image.Point{3, 1},
|
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want: image.Rect(0, 0, 48, 16),
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},
|
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{
|
|
desc: "scales to closest width of a non-zero base area",
|
|
area: image.Rect(1, 2, 21, 62), // Ratio 2:3.
|
|
ratio: image.Point{3, 1},
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want: image.Rect(1, 2, 19, 8),
|
|
},
|
|
{
|
|
desc: "scales to closest height",
|
|
area: image.Rect(0, 0, 50, 25), // Ratio 2:1.
|
|
ratio: image.Point{1, 3},
|
|
want: image.Rect(0, 0, 8, 24),
|
|
},
|
|
{
|
|
desc: "scales to closest height of a non-zero base area",
|
|
area: image.Rect(2, 4, 7, 29), // Ratio 1:5.
|
|
ratio: image.Point{3, 2},
|
|
want: image.Rect(2, 4, 5, 6),
|
|
},
|
|
{
|
|
desc: "non-simplified ratio",
|
|
area: image.Rect(0, 0, 50, 25), // Ratio 2:1.
|
|
ratio: image.Point{300, 100}, // Ratio 3:1.
|
|
want: image.Rect(0, 0, 48, 16),
|
|
},
|
|
{
|
|
desc: "square ratio",
|
|
area: image.Rect(0, 0, 50, 25), // Ratio 2:1.
|
|
ratio: image.Point{1, 1}, // Ratio 3:1.
|
|
want: image.Rect(0, 0, 25, 25),
|
|
},
|
|
}
|
|
|
|
for _, tc := range tests {
|
|
t.Run(tc.desc, func(t *testing.T) {
|
|
got := WithRatio(tc.area, tc.ratio)
|
|
if diff := pretty.Compare(tc.want, got); diff != "" {
|
|
t.Errorf("WithRatio => unexpected diff (-want, +got):\n%s", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestShrink(t *testing.T) {
|
|
tests := []struct {
|
|
desc string
|
|
area image.Rectangle
|
|
top, right, bottom, left int
|
|
want image.Rectangle
|
|
wantErr bool
|
|
}{
|
|
{
|
|
desc: "fails for negative top",
|
|
area: image.Rect(0, 0, 1, 1),
|
|
top: -1,
|
|
right: 0,
|
|
bottom: 0,
|
|
left: 0,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "fails for negative right",
|
|
area: image.Rect(0, 0, 1, 1),
|
|
top: 0,
|
|
right: -1,
|
|
bottom: 0,
|
|
left: 0,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "fails for negative bottom",
|
|
area: image.Rect(0, 0, 1, 1),
|
|
top: 0,
|
|
right: 0,
|
|
bottom: -1,
|
|
left: 0,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "fails for negative left",
|
|
area: image.Rect(0, 0, 1, 1),
|
|
top: 0,
|
|
right: 0,
|
|
bottom: 0,
|
|
left: -1,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "area unchanged when all zero",
|
|
area: image.Rect(7, 8, 9, 10),
|
|
top: 0,
|
|
right: 0,
|
|
bottom: 0,
|
|
left: 0,
|
|
want: image.Rect(7, 8, 9, 10),
|
|
},
|
|
{
|
|
desc: "shrinks top",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 1,
|
|
right: 0,
|
|
bottom: 0,
|
|
left: 0,
|
|
want: image.Rect(7, 9, 17, 18),
|
|
},
|
|
{
|
|
desc: "zero area when top too large",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 10,
|
|
right: 0,
|
|
bottom: 0,
|
|
left: 0,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "shrinks bottom",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 0,
|
|
right: 0,
|
|
bottom: 1,
|
|
left: 0,
|
|
want: image.Rect(7, 8, 17, 17),
|
|
},
|
|
{
|
|
desc: "zero area when bottom too large",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 0,
|
|
right: 0,
|
|
bottom: 10,
|
|
left: 0,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "zero area when top and bottom cross",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 5,
|
|
right: 0,
|
|
bottom: 5,
|
|
left: 0,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "zero area when top and bottom overrun",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 50,
|
|
right: 0,
|
|
bottom: 50,
|
|
left: 0,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "shrinks right",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 0,
|
|
right: 1,
|
|
bottom: 0,
|
|
left: 0,
|
|
want: image.Rect(7, 8, 16, 18),
|
|
},
|
|
{
|
|
desc: "zero area when right too large",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 0,
|
|
right: 10,
|
|
bottom: 0,
|
|
left: 0,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "shrinks left",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 0,
|
|
right: 0,
|
|
bottom: 0,
|
|
left: 1,
|
|
want: image.Rect(8, 8, 17, 18),
|
|
},
|
|
{
|
|
desc: "zero area when left too large",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 0,
|
|
right: 0,
|
|
bottom: 0,
|
|
left: 10,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "zero area when right and left cross",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 0,
|
|
right: 5,
|
|
bottom: 0,
|
|
left: 5,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "zero area when right and left overrun",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 0,
|
|
right: 50,
|
|
bottom: 0,
|
|
left: 50,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "shrinks from all sides",
|
|
area: image.Rect(7, 8, 17, 18),
|
|
top: 1,
|
|
right: 2,
|
|
bottom: 3,
|
|
left: 4,
|
|
want: image.Rect(11, 9, 15, 15),
|
|
},
|
|
}
|
|
|
|
for _, tc := range tests {
|
|
t.Run(tc.desc, func(t *testing.T) {
|
|
got, err := Shrink(tc.area, tc.top, tc.right, tc.bottom, tc.left)
|
|
if (err != nil) != tc.wantErr {
|
|
t.Errorf("Shrink => unexpected error: %v, wantErr: %v", err, tc.wantErr)
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
if diff := pretty.Compare(tc.want, got); diff != "" {
|
|
t.Errorf("Shrink => unexpected diff (-want, +got):\n%s", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestShrinkPercent(t *testing.T) {
|
|
tests := []struct {
|
|
desc string
|
|
area image.Rectangle
|
|
top, right, bottom, left int
|
|
want image.Rectangle
|
|
wantErr bool
|
|
}{
|
|
{
|
|
desc: "fails on top too low",
|
|
top: -1,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "fails on top too high",
|
|
top: 101,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "fails on right too low",
|
|
right: -1,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "fails on right too high",
|
|
right: 101,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "fails on bottom too low",
|
|
bottom: -1,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "fails on bottom too high",
|
|
bottom: 101,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "fails on left too low",
|
|
left: -1,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "fails on left too high",
|
|
left: 101,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "shrinks to zero area for top too large",
|
|
area: image.Rect(0, 0, 100, 100),
|
|
top: 100,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "shrinks to zero area for bottom too large",
|
|
area: image.Rect(0, 0, 100, 100),
|
|
bottom: 100,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "shrinks to zero area top and bottom that meet",
|
|
area: image.Rect(0, 0, 100, 100),
|
|
top: 50,
|
|
bottom: 50,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "shrinks to zero area for right too large",
|
|
area: image.Rect(0, 0, 100, 100),
|
|
right: 100,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "shrinks to zero area for left too large",
|
|
area: image.Rect(0, 0, 100, 100),
|
|
left: 100,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "shrinks to zero area right and left that meet",
|
|
area: image.Rect(0, 0, 100, 100),
|
|
right: 50,
|
|
left: 50,
|
|
want: image.ZR,
|
|
},
|
|
{
|
|
desc: "shrinks from all sides",
|
|
area: image.Rect(0, 0, 100, 100),
|
|
top: 10,
|
|
right: 20,
|
|
bottom: 30,
|
|
left: 40,
|
|
want: image.Rect(40, 10, 80, 70),
|
|
},
|
|
}
|
|
|
|
for _, tc := range tests {
|
|
t.Run(tc.desc, func(t *testing.T) {
|
|
got, err := ShrinkPercent(tc.area, tc.top, tc.right, tc.bottom, tc.left)
|
|
if (err != nil) != tc.wantErr {
|
|
t.Errorf("ShrinkPercent => unexpected error: %v, wantErr: %v", err, tc.wantErr)
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
if diff := pretty.Compare(tc.want, got); diff != "" {
|
|
t.Errorf("ShrinkPercent => unexpected diff (-want, +got):\n%s", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestMoveUp(t *testing.T) {
|
|
tests := []struct {
|
|
desc string
|
|
area image.Rectangle
|
|
cells int
|
|
want image.Rectangle
|
|
wantErr bool
|
|
}{
|
|
{
|
|
desc: "fails on negative cells",
|
|
area: image.Rect(0, 0, 1, 1),
|
|
cells: -1,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "zero area cannot be moved",
|
|
area: image.ZR,
|
|
cells: 1,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "cannot move area beyond zero Y coordinate",
|
|
area: image.Rect(0, 5, 1, 10),
|
|
cells: 6,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "move by zero cells is idempotent",
|
|
area: image.Rect(0, 5, 1, 10),
|
|
cells: 0,
|
|
want: image.Rect(0, 5, 1, 10),
|
|
},
|
|
{
|
|
desc: "moves area up",
|
|
area: image.Rect(0, 5, 1, 10),
|
|
cells: 3,
|
|
want: image.Rect(0, 2, 1, 7),
|
|
},
|
|
}
|
|
|
|
for _, tc := range tests {
|
|
t.Run(tc.desc, func(t *testing.T) {
|
|
got, err := MoveUp(tc.area, tc.cells)
|
|
if (err != nil) != tc.wantErr {
|
|
t.Errorf("MoveUp => unexpected error: %v, wantErr: %v", err, tc.wantErr)
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
if diff := pretty.Compare(tc.want, got); diff != "" {
|
|
t.Errorf("MoveUp => unexpected diff (-want, +got):\n%s", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestMoveDown(t *testing.T) {
|
|
tests := []struct {
|
|
desc string
|
|
area image.Rectangle
|
|
cells int
|
|
want image.Rectangle
|
|
wantErr bool
|
|
}{
|
|
{
|
|
desc: "fails on negative cells",
|
|
area: image.Rect(0, 0, 1, 1),
|
|
cells: -1,
|
|
wantErr: true,
|
|
},
|
|
{
|
|
desc: "moves zero area",
|
|
area: image.ZR,
|
|
cells: 1,
|
|
want: image.Rect(0, 1, 0, 1),
|
|
},
|
|
{
|
|
desc: "move by zero cells is idempotent",
|
|
area: image.Rect(0, 5, 1, 10),
|
|
cells: 0,
|
|
want: image.Rect(0, 5, 1, 10),
|
|
},
|
|
{
|
|
desc: "moves area down",
|
|
area: image.Rect(0, 5, 1, 10),
|
|
cells: 3,
|
|
want: image.Rect(0, 8, 1, 13),
|
|
},
|
|
}
|
|
|
|
for _, tc := range tests {
|
|
t.Run(tc.desc, func(t *testing.T) {
|
|
got, err := MoveDown(tc.area, tc.cells)
|
|
if (err != nil) != tc.wantErr {
|
|
t.Errorf("MoveDown => unexpected error: %v, wantErr: %v", err, tc.wantErr)
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
if diff := pretty.Compare(tc.want, got); diff != "" {
|
|
t.Errorf("MoveDown => unexpected diff (-want, +got):\n%s", diff)
|
|
}
|
|
})
|
|
}
|
|
}
|