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private_test.go
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private_test.go
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package bubblelayout
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestPreferenceConstraints(t *testing.T) {
testcases := []struct {
name string
row []BoundSize
col []BoundSize
err error
}{
{
name: "no violations 1",
row: nil,
col: nil,
err: nil,
}, {
name: "no violations 2",
row: []BoundSize{
{Min: 1, Preferred: 1, Max: 10},
{Min: 5, Preferred: 1, Max: 10},
},
col: []BoundSize{
{Min: 1, Preferred: 1, Max: 10},
{Min: 5, Preferred: 1, Max: 10},
},
err: nil,
}, {
name: "ignore zero value max",
row: []BoundSize{
{Min: 1, Preferred: 1, Max: 0},
},
col: []BoundSize{
{Min: 1, Preferred: 1, Max: 0},
},
err: nil,
}, {
name: "row violation",
row: []BoundSize{
{Min: 10, Preferred: 0, Max: 1},
},
col: []BoundSize{},
err: makeRowViolation(0, 10, 0, 1),
}, {
name: "col violation",
row: []BoundSize{},
col: []BoundSize{
{Min: 10, Preferred: 0, Max: 1},
},
err: makeColViolation(0, 10, 0, 1),
}, {
name: "violation index",
row: []BoundSize{},
col: []BoundSize{
{}, {}, {}, {}, {Min: 10, Preferred: 0, Max: 1},
},
err: makeColViolation(4, 10, 0, 1),
}, {
name: "preferred row violation 1",
row: []BoundSize{
{Min: 10, Preferred: 1, Max: 0},
},
col: []BoundSize{},
err: makeRowViolation(0, 10, 1, 0),
}, {
name: "preferred row violation 2",
row: []BoundSize{
{Min: 1, Preferred: 3, Max: 2},
},
col: []BoundSize{},
err: makeRowViolation(0, 1, 3, 2),
}, {
name: "preferred col violation 1",
row: []BoundSize{},
col: []BoundSize{
{Min: 10, Preferred: 1, Max: 0},
},
err: makeColViolation(0, 10, 1, 0),
}, {
name: "preferred col violation 2",
row: []BoundSize{},
col: []BoundSize{
{Min: 1, Preferred: 3, Max: 2},
},
err: makeColViolation(0, 1, 3, 2),
},
}
for _, tc := range testcases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
err := checkPreferenceConstraints(tc.row, tc.col)
assert.Equal(t, tc.err, err)
})
}
}
func TestPreferenceGroup(t *testing.T) {
testcases := []struct {
name string
pg PreferenceGroup
allocated int
expected []int
}{
{
name: "empty",
pg: PreferenceGroup{},
allocated: 80,
expected: nil,
}, {
name: "one",
pg: PreferenceGroup{
{Min: 1, Preferred: 5, Max: 10},
},
allocated: 80,
expected: []int{5},
}, {
name: "one Grow to Max",
pg: PreferenceGroup{
{Min: 1, Preferred: 5, Max: 10, Grow: true},
},
allocated: 80,
expected: []int{10},
}, {
name: "one Grow to allocated size",
pg: PreferenceGroup{
{Min: 1, Preferred: 1, Max: 1000, Grow: true},
},
allocated: 80,
expected: []int{80},
}, {
name: "two even empty Grow",
pg: PreferenceGroup{
{},
{},
},
allocated: 80,
expected: []int{40, 40},
}, {
name: "two uneven to Max",
pg: PreferenceGroup{
{Max: 10},
{Max: 70},
},
allocated: 80,
expected: []int{10, 70},
}, {
name: "two uneven Grow and Max",
pg: PreferenceGroup{
{Max: 10},
{},
},
allocated: 80,
expected: []int{10, 70},
}, {
name: "two growers",
pg: PreferenceGroup{
{Preferred: 10, Max: 40, Grow: true},
{Grow: true},
},
allocated: 80,
expected: []int{40, 40},
}, {
name: "three uneven to Max",
pg: PreferenceGroup{
{Max: 10},
{Max: 20},
{Max: 30},
},
allocated: 80,
expected: []int{10, 20, 30},
}, {
name: "three uneven preference and Max",
pg: PreferenceGroup{
{Max: 10},
{Preferred: 15, Max: 20},
{Max: 30},
},
allocated: 80,
expected: []int{10, 15, 30},
}, {
name: "three uneven over allocated",
pg: PreferenceGroup{
{Max: 10},
{Preferred: 95},
{Max: 30},
},
allocated: 80,
expected: []int{10, 40, 30},
}, {
name: "two growers and uneven max",
pg: PreferenceGroup{
{Preferred: 10, Max: 20, Grow: true},
{Preferred: 10, Max: 80, Grow: true},
},
allocated: 60,
expected: []int{20, 40},
}, {
name: "two growers and uneven max thats reached",
pg: PreferenceGroup{
{Preferred: 10, Max: 15, Grow: true},
{Preferred: 10, Max: 15, Grow: true},
},
allocated: 60,
expected: []int{15, 15},
}, {
name: "just enough for Min",
pg: PreferenceGroup{
{Min: 20, Preferred: 30, Max: 40},
{Min: 20, Preferred: 30, Max: 40},
{Min: 20, Preferred: 30, Max: 40},
{Min: 20, Preferred: 30, Max: 40},
},
allocated: 80,
expected: []int{20, 20, 20, 20},
}, {
name: "just enough for Min 2",
pg: PreferenceGroup{
{Min: 10, Preferred: 30, Max: 40},
{Min: 20, Preferred: 30, Max: 40},
{Min: 30, Preferred: 60, Max: 100},
{Min: 40, Preferred: 80, Max: 100},
},
allocated: 100,
expected: []int{10, 20, 30, 40},
}, {
name: "go below Min when over allocated",
pg: PreferenceGroup{
{Min: 25, Preferred: 30, Max: 40},
{Min: 25, Preferred: 30, Max: 40},
{Min: 25, Preferred: 30, Max: 40},
{Min: 25, Preferred: 30, Max: 40},
},
allocated: 80,
expected: []int{25, 25, 25, 5},
}, {
name: "do not go over max",
pg: PreferenceGroup{
{Max: 30, Grow: true},
{Max: 30, Grow: true},
},
allocated: 61,
expected: []int{30, 30},
}, {
name: "remainder",
pg: PreferenceGroup{
{},
{},
},
allocated: 81,
expected: []int{41, 40},
}, {
// There was a bug where the slice index was used instead of the value
// This would cause remainder space be assigned to the wrong cell, which
// could cause a max size constraint to be violated.
name: "remainder regression - use value instead of index",
pg: PreferenceGroup{
{Max: 40},
{},
{},
},
allocated: 121,
expected: []int{40, 41, 40},
}, {
name: "even split above preferred",
pg: PreferenceGroup{
{Preferred: 10, Max: 100, Grow: true},
{Preferred: 50, Max: 70, Grow: true},
},
allocated: 80,
expected: []int{20, 60},
}, {
name: "No max no grow",
pg: PreferenceGroup{
{Preferred: 10, Max: 15},
{Preferred: 10},
{},
},
allocated: 60,
expected: []int{10, 10, 40},
}, {
name: "growToMax",
pg: PreferenceGroup{
{Preferred: 10, Max: 100, Grow: true},
{Preferred: 50, Max: 55, Grow: true},
},
allocated: 80,
expected: []int{25, 55},
},
}
for _, tc := range testcases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
result := tc.pg.computeDims(tc.allocated)
assert.Equal(t, tc.expected, result)
})
}
}
func TestExpandSpans(t *testing.T) {
testcases := []struct {
name string
inputLayout Grid
inputString func(*bubbleLayout) Grid
expected Grid
}{
{
name: "no expand",
inputLayout: [][]layout{
{{id: 1}, {id: 2, wrap: true}},
{{id: 3}, {id: 4}},
},
inputString: func(bl *bubbleLayout) Grid {
bl.Add("")
bl.Add("wrap")
bl.Add("")
bl.Add("")
return bl.layouts
},
expected: [][]layout{
{{id: 1}, {id: 2, wrap: true}},
{{id: 3}, {id: 4}},
},
}, {
name: "horizontal span",
inputLayout: [][]layout{
{{id: 1, Cell: Cell{SpanWidth: 2}, wrap: true}},
{{id: 2}, {id: 3}},
},
inputString: func(bl *bubbleLayout) Grid {
bl.Add("spanw 2, wrap")
bl.Add("")
bl.Add("")
return bl.layouts
},
expected: [][]layout{
{{id: 1, Cell: Cell{SpanWidth: 2}, wrap: true}, {id: 1, Cell: Cell{SpanWidth: 2, wDuplicate: true}, wrap: true}},
{{id: 2}, {id: 3}},
},
}, {
name: "horizontal span and expand, with padding",
inputLayout: [][]layout{
{{id: 1}, {id: 2, Cell: Cell{SpanWidth: 3}, wrap: true}},
{{id: 3}, {id: 4}},
},
inputString: func(bl *bubbleLayout) Grid {
bl.Add("")
bl.Add("spanx 3, wrap")
bl.Add("")
bl.Add("")
return bl.layouts
},
expected: [][]layout{
{{id: 1}, {id: 2, Cell: Cell{SpanWidth: 3}, wrap: true}, {id: 2, Cell: Cell{SpanWidth: 3, wDuplicate: true}, wrap: true}, {id: 2, Cell: Cell{SpanWidth: 3, wDuplicate: true}, wrap: true}},
{{id: 3}, {id: 4}, {id: 0}, {id: 0}},
},
}, {
name: "vertical span",
inputLayout: [][]layout{
{{id: 1, Cell: Cell{SpanHeight: 2}}, {id: 2, wrap: true}},
{{id: 3}},
},
inputString: func(bl *bubbleLayout) Grid {
bl.Add("spanh 2")
bl.Add("wrap")
bl.Add("")
return bl.layouts
},
expected: [][]layout{
{{id: 1, Cell: Cell{SpanHeight: 2}}, {id: 2, wrap: true}},
{{id: 1, Cell: Cell{SpanHeight: 2, hDuplicate: true}}, {id: 3}},
},
}, {
name: "vertical span and expand",
inputLayout: [][]layout{
{{id: 1, Cell: Cell{SpanHeight: 2}}},
},
inputString: func(bl *bubbleLayout) Grid {
bl.Add("spanh 2")
return bl.layouts
},
expected: [][]layout{
{{id: 1, Cell: Cell{SpanHeight: 2}}},
{{id: 1, Cell: Cell{SpanHeight: 2, hDuplicate: true}}},
},
}, {
name: "test empty space",
inputLayout: [][]layout{
{{id: 1, wrap: true}},
{{id: 2}, {id: 3}},
},
inputString: func(bl *bubbleLayout) Grid {
bl.Add("wrap")
bl.Add("")
bl.Add("")
return bl.layouts
},
expected: [][]layout{
{{id: 1, wrap: true}, {id: 0}},
{{id: 2}, {id: 3}},
},
}, {
name: "empty space 2d expand at horizontal end",
inputLayout: [][]layout{
{{id: 1}, {id: 2, Cell: Cell{SpanHeight: 2, SpanWidth: 2}}},
},
inputString: func(bl *bubbleLayout) Grid {
bl.Add("")
bl.Add("span 2 2")
return bl.layouts
},
expected: [][]layout{
{{id: 1}, {id: 2, Cell: Cell{SpanHeight: 2, SpanWidth: 2}}, {id: 2, Cell: Cell{SpanHeight: 2, SpanWidth: 2, wDuplicate: true}}},
{{id: 0}, {id: 2, Cell: Cell{SpanHeight: 2, SpanWidth: 2, hDuplicate: true}}, {id: 2, Cell: Cell{SpanHeight: 2, SpanWidth: 2, hDuplicate: true, wDuplicate: true}}},
},
}, {
name: "empty space 2d expand at vertical end",
inputLayout: [][]layout{
{{id: 1, wrap: true}},
{{id: 2, Cell: Cell{SpanHeight: 2, SpanWidth: 2}}},
},
inputString: func(bl *bubbleLayout) Grid {
bl.Add("wrap")
bl.Add("span 2 2")
return bl.layouts
},
expected: [][]layout{
{{id: 1, wrap: true}, {id: 0}},
{{id: 2, Cell: Cell{SpanHeight: 2, SpanWidth: 2}}, {id: 2, Cell: Cell{SpanHeight: 2, SpanWidth: 2, wDuplicate: true}}},
{{id: 2, Cell: Cell{SpanHeight: 2, SpanWidth: 2, hDuplicate: true}}, {id: 2, Cell: Cell{SpanHeight: 2, SpanWidth: 2, hDuplicate: true, wDuplicate: true}}},
},
}, {
name: "vertical and horizontal span and overflow",
inputLayout: [][]layout{
{{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2}}},
},
inputString: func(bl *bubbleLayout) Grid {
bl.Add("span 2 2")
return bl.layouts
},
expected: [][]layout{
{{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2}}, {id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, wDuplicate: true}}},
{{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, hDuplicate: true}}, {id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, hDuplicate: true, wDuplicate: true}}},
},
}, {
// inputLayout:
// ---------------------------------
// | 1 | 2 (2, 2) | 3 |
// ---------------------------------
// | 4 (1, 2) | 5 |
// -----------------------
// | 6 | 7 (1, 2) |
// -----------------------
// expected
// ---------------------------------
// | 1 | - | 3 |
// --------- - - 2 - - |--------
// | - | - | 5 |
// | - 4 - -------------------------
// | - | 6 | 7 |
// ---------------------------------
name: "complex",
inputLayout: [][]layout{
{{id: 1}, {id: 2, Cell: Cell{SpanWidth: 2, SpanHeight: 2}}, {id: 3, wrap: true}},
{{id: 4, Cell: Cell{SpanHeight: 2}}, {id: 5, wrap: true}},
{{id: 6}, {id: 7, Cell: Cell{SpanWidth: 2}}},
},
inputString: func(bl *bubbleLayout) Grid {
bl.Add("")
bl.Add("span 2 2")
bl.Add("wrap")
bl.Add("spanh 2")
bl.Add("wrap")
bl.Add("")
bl.Add("spanw 2")
return bl.layouts
},
expected: [][]layout{
{{id: 1}, {id: 2, Cell: Cell{SpanWidth: 2, SpanHeight: 2}}, {id: 2, Cell: Cell{SpanWidth: 2, SpanHeight: 2, wDuplicate: true}}, {id: 3, wrap: true}},
{{id: 4, Cell: Cell{SpanHeight: 2}}, {id: 2, Cell: Cell{SpanWidth: 2, SpanHeight: 2, hDuplicate: true}}, {id: 2, Cell: Cell{SpanWidth: 2, SpanHeight: 2, hDuplicate: true, wDuplicate: true}}, {id: 5, wrap: true}},
{{id: 4, Cell: Cell{SpanHeight: 2, hDuplicate: true}}, {id: 6}, {id: 7, Cell: Cell{SpanWidth: 2}}, {id: 7, Cell: Cell{SpanWidth: 2, wDuplicate: true}}},
},
}, {
name: "prefs even split",
inputLayout: [][]layout{
{{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, MinHeight: 10, MaxHeight: 100, PreferredHeight: 50, MinWidth: 10, MaxWidth: 100, PreferredWidth: 50}}},
},
inputString: func(bl *bubbleLayout) Grid {
bl.Add("span 2 2, width 10:50:100, height 10:50:100")
return bl.layouts
},
expected: [][]layout{
{{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, MinHeight: 5, MaxHeight: 50, PreferredHeight: 25, MinWidth: 5, MaxWidth: 50, PreferredWidth: 25}},
{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, MinHeight: 5, MaxHeight: 50, PreferredHeight: 25, MinWidth: 5, MaxWidth: 50, PreferredWidth: 25, wDuplicate: true}}},
{{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, MinHeight: 5, MaxHeight: 50, PreferredHeight: 25, MinWidth: 5, MaxWidth: 50, PreferredWidth: 25, hDuplicate: true}},
{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, MinHeight: 5, MaxHeight: 50, PreferredHeight: 25, MinWidth: 5, MaxWidth: 50, PreferredWidth: 25, hDuplicate: true, wDuplicate: true}},
},
},
}, {
// these are all 1 larger than "perfs even split", the odd number is discarded.
name: "prefs odd split rounding error",
inputLayout: [][]layout{
{{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, MinHeight: 11, MaxHeight: 101, PreferredHeight: 51, MinWidth: 11, MaxWidth: 101, PreferredWidth: 51}}},
},
inputString: func(bl *bubbleLayout) Grid {
bl.Add("span 2 2, width 11:51:101, height 11:51:101")
return bl.layouts
},
expected: [][]layout{
{{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, MinHeight: 5, MaxHeight: 50, PreferredHeight: 25, MinWidth: 5, MaxWidth: 50, PreferredWidth: 25}},
{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, MinHeight: 5, MaxHeight: 50, PreferredHeight: 25, MinWidth: 5, MaxWidth: 50, PreferredWidth: 25, wDuplicate: true}}},
{{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, MinHeight: 5, MaxHeight: 50, PreferredHeight: 25, MinWidth: 5, MaxWidth: 50, PreferredWidth: 25, hDuplicate: true}},
{id: 1, Cell: Cell{SpanWidth: 2, SpanHeight: 2, MinHeight: 5, MaxHeight: 50, PreferredHeight: 25, MinWidth: 5, MaxWidth: 50, PreferredWidth: 25, hDuplicate: true, wDuplicate: true}},
},
},
},
}
for _, tc := range testcases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
result1 := expandSpans(tc.inputLayout)
assert.Len(t, result1, len(tc.expected), "number of rows mismatch")
for i, row := range result1 {
assert.Len(t, row, len(tc.expected[i]), "row %d: number of columns mismatch", i)
}
assert.Equal(t, tc.expected, result1)
if tc.inputString != nil {
bl := New().(*bubbleLayout)
grid := tc.inputString(bl)
assert.Equal(t, tc.inputLayout, grid)
}
})
}
}
func TestMergeDocks_Empty(t *testing.T) {
assert.Nil(t, mergeDocks(nil, nil))
}
func TestMergeDocks_InvalidCardinal(t *testing.T) {
panicFunc := func() {
mergeDocks([][]layout{{{id: 0}}}, []layout{{id: 1, Dock: Dock{Cardinal: "north-north-west"}}})
}
assert.PanicsWithError(t, "invalid cardinal", panicFunc)
}
func TestMergeDocks(t *testing.T) {
testcases := []struct {
name string
start Grid
docks []layout
expected Grid
}{
{
name: "simple north",
start: [][]layout{
{{id: 0}},
},
docks: []layout{
{id: 1, Dock: Dock{Cardinal: NORTH, Min: 10, Preferred: 10, Max: 10}},
},
expected: [][]layout{
{{id: 1, Cell: Cell{SpanWidth: 1, MinHeight: 10, PreferredHeight: 10, MaxHeight: 10}}},
{{id: 0}},
},
}, {
name: "simple south",
start: [][]layout{
{{id: 0}},
},
docks: []layout{
{id: 1, Dock: Dock{Cardinal: SOUTH, Min: 10, Preferred: 10, Max: 10}},
},
expected: [][]layout{
{{id: 0}},
{{id: 1, Cell: Cell{SpanWidth: 1, MinHeight: 10, PreferredHeight: 10, MaxHeight: 10}}},
},
}, {
name: "simple west",
start: [][]layout{
{{id: 0}},
},
docks: []layout{
{id: 1, Dock: Dock{Cardinal: WEST, Min: 10, Preferred: 10, Max: 10}},
},
expected: [][]layout{
{{id: 1, Cell: Cell{SpanHeight: 1, MinWidth: 10, PreferredWidth: 10, MaxWidth: 10}}, {id: 0}},
},
}, {
name: "simple east",
start: [][]layout{
{{id: 0}},
},
docks: []layout{
{id: 1, Dock: Dock{Cardinal: EAST, Min: 10, Preferred: 10, Max: 10}},
},
expected: [][]layout{
{{id: 0}, {id: 1, Cell: Cell{SpanHeight: 1, MinWidth: 10, PreferredWidth: 10, MaxWidth: 10}}},
},
}, {
name: "double north",
start: [][]layout{
{{id: 0}, {id: 1}},
},
docks: []layout{
{id: 2, Dock: Dock{Cardinal: NORTH, Min: 10, Preferred: 10, Max: 10}},
},
expected: [][]layout{
{{id: 2, Cell: Cell{SpanWidth: 2, MinHeight: 10, PreferredHeight: 10, MaxHeight: 10}}, {id: 2, Cell: Cell{SpanWidth: 2, MinHeight: 10, PreferredHeight: 10, MaxHeight: 10, wDuplicate: true}}},
{{id: 0}, {id: 1}},
},
}, {
name: "double south",
start: [][]layout{
{{id: 0}, {id: 1}},
},
docks: []layout{
{id: 2, Dock: Dock{Cardinal: SOUTH, Min: 10, Preferred: 10, Max: 10}},
},
expected: [][]layout{
{{id: 0}, {id: 1}},
{{id: 2, Cell: Cell{SpanWidth: 2, MinHeight: 10, PreferredHeight: 10, MaxHeight: 10}}, {id: 2, Cell: Cell{SpanWidth: 2, MinHeight: 10, PreferredHeight: 10, MaxHeight: 10, wDuplicate: true}}},
},
}, {
name: "double west",
start: [][]layout{
{{id: 0}},
{{id: 1}},
},
docks: []layout{
{id: 2, Dock: Dock{Cardinal: WEST, Min: 10, Preferred: 10, Max: 10}},
},
expected: [][]layout{
{{id: 2, Cell: Cell{SpanHeight: 2, MinWidth: 10, PreferredWidth: 10, MaxWidth: 10}}, {id: 0}},
{{id: 2, Cell: Cell{SpanHeight: 2, MinWidth: 10, PreferredWidth: 10, MaxWidth: 10, hDuplicate: true}}, {id: 1}},
},
}, {
name: "double east",
start: [][]layout{
{{id: 0}},
{{id: 1}},
},
docks: []layout{
{id: 2, Dock: Dock{Cardinal: EAST, Min: 10, Preferred: 10, Max: 10}},
},
expected: [][]layout{
{{id: 0}, {id: 2, Cell: Cell{SpanHeight: 2, MinWidth: 10, PreferredWidth: 10, MaxWidth: 10}}},
{{id: 1}, {id: 2, Cell: Cell{SpanHeight: 2, MinWidth: 10, PreferredWidth: 10, MaxWidth: 10, hDuplicate: true}}},
},
},
}
for _, tc := range testcases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
result := mergeDocks(tc.start, tc.docks)
assert.Equal(t, tc.expected, result)
})
}
}
func TestDistillPrefs(t *testing.T) {
testcases := []struct {
name string
input Grid
hExpected PreferenceGroup
wExpected PreferenceGroup
}{
{
name: "1x1",
input: [][]layout{
{{id: 1, Cell: Cell{MinHeight: 10, MaxHeight: 100, PreferredHeight: 50, MinWidth: 10, MaxWidth: 100, PreferredWidth: 50}}},
},
hExpected: []BoundSize{{Min: 10, Preferred: 50, Max: 100}},
wExpected: []BoundSize{{Min: 10, Preferred: 50, Max: 100}},
}, {
name: "2x2 one defaults",
input: [][]layout{
{{id: 1, Cell: Cell{MinHeight: 10, MaxHeight: 100, PreferredHeight: 50, MinWidth: 10, MaxWidth: 100, PreferredWidth: 50}}, {id: 2}},
{{id: 3}, {id: 4, Cell: Cell{MinHeight: 10, MaxHeight: 100, PreferredHeight: 50, MinWidth: 10, MaxWidth: 100, PreferredWidth: 50}}},
},
hExpected: []BoundSize{{Min: 10, Preferred: 50, Max: 100}, {Min: 10, Preferred: 50, Max: 100}},
wExpected: []BoundSize{{Min: 10, Preferred: 50, Max: 100}, {Min: 10, Preferred: 50, Max: 100}},
}, {
name: "1x3 Max(Min)) and Min(Max)",
input: [][]layout{
{
{id: 1, Cell: Cell{MinHeight: 5, MaxHeight: 50, PreferredHeight: 25}},
{id: 2, Cell: Cell{MinHeight: 10, MaxHeight: 100, PreferredHeight: 50}},
{id: 3},
},
},
hExpected: []BoundSize{{Min: 10, Preferred: 50, Max: 50}},
wExpected: []BoundSize{{}, {}, {}},
}, {
name: "3x1 Max(Min)) and Min(Max)",
input: [][]layout{
{{id: 1, Cell: Cell{MinWidth: 5, MaxWidth: 50, PreferredWidth: 25}}},
{{id: 2, Cell: Cell{MinWidth: 10, MaxWidth: 100, PreferredWidth: 25}}},
{{id: 3}},
},
hExpected: []BoundSize{{}, {}, {}},
wExpected: []BoundSize{{Min: 10, Preferred: 25, Max: 50}},
},
}
for _, tc := range testcases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
hPref, wPref := distillPreferences(tc.input)
assert.Equal(t, tc.hExpected, hPref)
assert.Equal(t, tc.wExpected, wPref)
})
}
}
func TestDistillPrefs_Empty(t *testing.T) {
hPref, wPref := distillPreferences(nil)
assert.Nil(t, hPref)
assert.Nil(t, wPref)
}
func TestDock(t *testing.T) {
l := New()
l.Dock(Dock{NORTH, 1, 2, 3})
bl := l.(*bubbleLayout)
require.Equal(t, []layout{{id: 1, Dock: Dock{Cardinal: NORTH, Min: 1, Preferred: 2, Max: 3}}}, bl.docks)
}
func TestValidate_FailureHeight(t *testing.T) {
l := New()
l.Cell(Cell{MinHeight: 100})
l.Cell(Cell{MaxHeight: 10})
require.ErrorContains(t, l.Validate(), makeRowViolation(0, 100, 0, 10).Error())
}
func TestValidate_FailureWidth(t *testing.T) {
l := New()
l.Cell(Cell{MinWidth: 100})
l.Wrap()
l.Cell(Cell{MaxWidth: 10})
require.ErrorContains(t, l.Validate(), makeColViolation(0, 100, 0, 10).Error())
}
func TestTooManayConstraints(t *testing.T) {
// 0x1 layout with 1x1 constraint
h := PreferenceGroup{{}}
w := PreferenceGroup{{}}
l := NewWithConstraints(w, h)
require.ErrorContains(t, l.Validate(), "width preferences do not match the cell height")
// 0x1 layout with 1x2 constraint
h = append(h, BoundSize{})
l = NewWithConstraints(w, h)
require.ErrorContains(t, l.Validate(), "height preferences do not match the cell height")
}
func TestProvideConstraints(t *testing.T) {
col := PreferenceGroup{{Min: 1, Preferred: 2, Max: 3}}
row := PreferenceGroup{{Min: 4, Preferred: 5, Max: 6}}
l := NewWithConstraints(row, col)
l.Add("")
require.NoError(t, l.Validate())
bl := l.(*bubbleLayout)
require.Equal(t, col, bl.hPref)
require.Equal(t, row, bl.wPref)
}
func TestConstraintExtension(t *testing.T) {
col := PreferenceGroup{{Min: 1, Preferred: 2, Max: 3}}
row := PreferenceGroup{{Min: 4, Preferred: 5, Max: 6}}
l := NewWithConstraints(row, col)
l.Add("")
l.Add("grow, wrap")
l.Add("")
l.Add("grow")
require.NoError(t, l.Validate())
bl := l.(*bubbleLayout)
// A "grow" bound from the distilled constraints should be added to each.
addedBound := BoundSize{Grow: true}
require.Equal(t, append(col, addedBound), bl.hPref)
require.Equal(t, append(row, addedBound), bl.wPref)
}