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101 lines
2.3 KiB
Go
101 lines
2.3 KiB
Go
package lbl
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestNewOrigin(t *testing.T) {
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type scenario struct {
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name string
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origin int
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bufferHeight int
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firstLineIdx int
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lastLineIdx int
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selectedLineIdx int
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selectMode selectMode
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expected int
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}
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scenarios := []scenario{
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{
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name: "selection above scroll window",
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origin: 50,
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bufferHeight: 100,
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firstLineIdx: 10,
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lastLineIdx: 10,
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selectedLineIdx: 10,
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selectMode: LINE,
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expected: 10,
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},
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{
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name: "selection below scroll window",
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origin: 0,
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bufferHeight: 100,
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firstLineIdx: 150,
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lastLineIdx: 150,
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selectedLineIdx: 150,
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selectMode: LINE,
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expected: 50,
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},
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{
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name: "selection within scroll window",
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origin: 0,
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bufferHeight: 100,
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firstLineIdx: 50,
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lastLineIdx: 50,
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selectedLineIdx: 50,
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selectMode: LINE,
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expected: 0,
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},
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{
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name: "range ending below scroll window with selection at end of range",
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origin: 0,
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bufferHeight: 100,
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firstLineIdx: 40,
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lastLineIdx: 150,
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selectedLineIdx: 150,
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selectMode: RANGE,
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expected: 50,
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},
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{
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name: "range ending below scroll window with selection at beginning of range",
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origin: 0,
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bufferHeight: 100,
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firstLineIdx: 40,
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lastLineIdx: 150,
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selectedLineIdx: 40,
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selectMode: RANGE,
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expected: 40,
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},
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{
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name: "range starting above scroll window with selection at beginning of range",
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origin: 50,
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bufferHeight: 100,
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firstLineIdx: 40,
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lastLineIdx: 150,
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selectedLineIdx: 40,
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selectMode: RANGE,
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expected: 40,
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},
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{
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name: "hunk extending beyond both bounds of scroll window",
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origin: 50,
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bufferHeight: 100,
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firstLineIdx: 40,
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lastLineIdx: 200,
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selectedLineIdx: 70,
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selectMode: HUNK,
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expected: 40,
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},
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}
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for _, s := range scenarios {
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s := s
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t.Run(s.name, func(t *testing.T) {
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assert.EqualValues(t, s.expected, calculateOrigin(s.origin, s.bufferHeight, s.firstLineIdx, s.lastLineIdx, s.selectedLineIdx, s.selectMode))
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})
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}
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}
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