Files
Stefan HallerandClaude Opus 4.7 35d3659cce Use more widely-supported Unicode symbols for the commit graph
The commit graph used '⏣' (U+23E3 BENZENE RING WITH CIRCLE) for merge
commits and '◯' (U+25EF LARGE CIRCLE) for regular commits. Both have
very poor coverage in popular monospace fonts:

- '⏣' lives in the Misc Technical block and is essentially absent from
  every common monospace font (Source Code Pro, JetBrains Mono, Fira
  Code, Cascadia Code, Hack, Iosevka, Menlo, Consolas, Monaco, IBM
  Plex Mono, Ubuntu Mono, Noto Sans Mono, Inconsolata). It is always
  drawn from a system fallback font.
- '◯' is the late-addition LARGE CIRCLE codepoint. It is present in
  some fonts (Cascadia, Fira Code, Hack, Iosevka, Menlo, Noto Sans
  Mono) but missing from many others, including Source Code Pro and
  most Nerd Font derivatives based on it.

This is why the graph renders inconsistently across platforms even
when the same monospace font is configured: each OS picks a different
fallback font (Apple Symbols on macOS, Segoe UI Symbol on Windows,
Noto/DejaVu/Symbola on Linux), and the substituted glyphs differ in
shape, weight, and advance width. '◯' is also East Asian Ambiguous
width, so some terminals render it wider than one cell, exaggerating
the misalignment.

Replace the symbols with codepoints from the foundational 1991
Geometric Shapes block, which has far broader font coverage:

- Merge: '◎' U+25CE BULLSEYE -- concentric circles, the visually
  closest cousin to the previous benzene-ring glyph.
- Commit: '○' U+25CB WHITE CIRCLE -- the same hollow-circle silhouette
  as before, just a more universally available codepoint.

The new symbols are present in the font directly in significantly
more cases; and when fallback is still required, they are universally
well-drawn (unlike '⏣', which many fallback fonts also lack).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 13:06:29 +02:00

607 lines
22 KiB
Go

package graph
import (
"fmt"
"math/rand"
"strings"
"testing"
"github.com/gookit/color"
"github.com/jesseduffield/lazygit/pkg/commands/models"
"github.com/jesseduffield/lazygit/pkg/gui/presentation/authors"
"github.com/jesseduffield/lazygit/pkg/gui/style"
"github.com/jesseduffield/lazygit/pkg/utils"
"github.com/samber/lo"
"github.com/stretchr/testify/assert"
"github.com/xo/terminfo"
)
func TestRenderCommitGraph(t *testing.T) {
tests := []struct {
name string
commitOpts []models.NewCommitOpts
expectedOutput string
}{
{
name: "with some merges",
commitOpts: []models.NewCommitOpts{
{Hash: "1", Parents: []string{"2"}},
{Hash: "2", Parents: []string{"3"}},
{Hash: "3", Parents: []string{"4"}},
{Hash: "4", Parents: []string{"5", "7"}},
{Hash: "7", Parents: []string{"5"}},
{Hash: "5", Parents: []string{"8"}},
{Hash: "8", Parents: []string{"9"}},
{Hash: "9", Parents: []string{"A", "B"}},
{Hash: "B", Parents: []string{"D"}},
{Hash: "D", Parents: []string{"D"}},
{Hash: "A", Parents: []string{"E"}},
{Hash: "E", Parents: []string{"F"}},
{Hash: "F", Parents: []string{"D"}},
{Hash: "D", Parents: []string{"G"}},
},
expectedOutput: `
1 ○
2 ○
3 ○
4 ◎─╮
7 │ ○
5 ○─╯
8 ○
9 ◎─╮
B │ ○
D │ ○
A ○ │
E ○ │
F ○ │
D ○─╯`,
},
{
name: "with a path that has room to move to the left",
commitOpts: []models.NewCommitOpts{
{Hash: "1", Parents: []string{"2"}},
{Hash: "2", Parents: []string{"3", "4"}},
{Hash: "4", Parents: []string{"3", "5"}},
{Hash: "3", Parents: []string{"5"}},
{Hash: "5", Parents: []string{"6"}},
{Hash: "6", Parents: []string{"7"}},
},
expectedOutput: `
1 ○
2 ◎─╮
4 │ ◎─╮
3 ○─╯ │
5 ○───╯
6 ○`,
},
{
name: "with a new commit",
commitOpts: []models.NewCommitOpts{
{Hash: "1", Parents: []string{"2"}},
{Hash: "2", Parents: []string{"3", "4"}},
{Hash: "4", Parents: []string{"3", "5"}},
{Hash: "Z", Parents: []string{"Z"}},
{Hash: "3", Parents: []string{"5"}},
{Hash: "5", Parents: []string{"6"}},
{Hash: "6", Parents: []string{"7"}},
},
expectedOutput: `
1 ○
2 ◎─╮
4 │ ◎─╮
Z │ │ │ ○
3 ○─╯ │ │
5 ○───╯ │
6 ○ ╭───╯`,
},
{
name: "with a path that has room to move to the left and continues",
commitOpts: []models.NewCommitOpts{
{Hash: "1", Parents: []string{"2"}},
{Hash: "2", Parents: []string{"3", "4"}},
{Hash: "3", Parents: []string{"5", "4"}},
{Hash: "5", Parents: []string{"7", "8"}},
{Hash: "4", Parents: []string{"7"}},
{Hash: "7", Parents: []string{"11"}},
},
expectedOutput: `
1 ○
2 ◎─╮
3 ◎─│─╮
5 ◎─│─│─╮
4 │ ○─╯ │
7 ○─╯ ╭─╯`,
},
{
name: "with a path that has room to move to the left and continues",
commitOpts: []models.NewCommitOpts{
{Hash: "1", Parents: []string{"2"}},
{Hash: "2", Parents: []string{"3", "4"}},
{Hash: "3", Parents: []string{"5", "4"}},
{Hash: "5", Parents: []string{"7", "8"}},
{Hash: "7", Parents: []string{"4", "A"}},
{Hash: "4", Parents: []string{"B"}},
{Hash: "B", Parents: []string{"C"}},
},
expectedOutput: `
1 ○
2 ◎─╮
3 ◎─│─╮
5 ◎─│─│─╮
7 ◎─│─│─│─╮
4 ○─┴─╯ │ │
B ○ ╭───╯ │`,
},
{
name: "with a path that has room to move to the left and continues",
commitOpts: []models.NewCommitOpts{
{Hash: "1", Parents: []string{"2", "3"}},
{Hash: "3", Parents: []string{"2"}},
{Hash: "2", Parents: []string{"4", "5"}},
{Hash: "4", Parents: []string{"6", "7"}},
{Hash: "6", Parents: []string{"8"}},
},
expectedOutput: `
1 ◎─╮
3 │ ○
2 ◎─│
4 ◎─│─╮
6 ○ │ │`,
},
{
name: "new merge path fills gap before continuing path on right",
commitOpts: []models.NewCommitOpts{
{Hash: "1", Parents: []string{"2", "3", "4", "5"}},
{Hash: "4", Parents: []string{"2"}},
{Hash: "2", Parents: []string{"A"}},
{Hash: "A", Parents: []string{"6", "B"}},
{Hash: "B", Parents: []string{"C"}},
},
expectedOutput: `
1 ◎─┬─┬─╮
4 │ │ ○ │
2 ○─│─╯ │
A ◎─│─╮ │
B │ │ ○ │`,
},
{
name: "with a path that has room to move to the left and continues",
commitOpts: []models.NewCommitOpts{
{Hash: "1", Parents: []string{"2"}},
{Hash: "2", Parents: []string{"3", "4"}},
{Hash: "3", Parents: []string{"5", "4"}},
{Hash: "5", Parents: []string{"7", "8"}},
{Hash: "7", Parents: []string{"4", "A"}},
{Hash: "4", Parents: []string{"B"}},
{Hash: "B", Parents: []string{"C"}},
{Hash: "C", Parents: []string{"D"}},
},
expectedOutput: `
1 ○
2 ◎─╮
3 ◎─│─╮
5 ◎─│─│─╮
7 ◎─│─│─│─╮
4 ○─┴─╯ │ │
B ○ ╭───╯ │
C ○ │ ╭───╯`,
},
{
name: "with a path that has room to move to the left and continues",
commitOpts: []models.NewCommitOpts{
{Hash: "1", Parents: []string{"2"}},
{Hash: "2", Parents: []string{"3", "4"}},
{Hash: "3", Parents: []string{"5", "4"}},
{Hash: "5", Parents: []string{"7", "G"}},
{Hash: "7", Parents: []string{"8", "A"}},
{Hash: "8", Parents: []string{"4", "E"}},
{Hash: "4", Parents: []string{"B"}},
{Hash: "B", Parents: []string{"C"}},
{Hash: "C", Parents: []string{"D"}},
{Hash: "D", Parents: []string{"F"}},
},
expectedOutput: `
1 ○
2 ◎─╮
3 ◎─│─╮
5 ◎─│─│─╮
7 ◎─│─│─│─╮
8 ◎─│─│─│─│─╮
4 ○─┴─╯ │ │ │
B ○ ╭───╯ │ │
C ○ │ ╭───╯ │
D ○ │ │ ╭───╯`,
},
}
oldColorLevel := color.ForceSetColorLevel(terminfo.ColorLevelMillions)
defer color.ForceSetColorLevel(oldColorLevel)
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
hashPool := &utils.StringPool{}
getStyle := func(c *models.Commit) *style.TextStyle { return &style.FgDefault }
commits := lo.Map(test.commitOpts,
func(opts models.NewCommitOpts, _ int) *models.Commit { return models.NewCommit(hashPool, opts) })
lines := RenderCommitGraph(commits, hashPool.Add("blah"), getStyle)
trimmedExpectedOutput := ""
for line := range strings.SplitSeq(strings.TrimPrefix(test.expectedOutput, "\n"), "\n") {
trimmedExpectedOutput += strings.TrimSpace(line) + "\n"
}
t.Log("\nexpected: \n" + trimmedExpectedOutput)
output := ""
for i, line := range lines {
description := test.commitOpts[i].Hash
output += strings.TrimSpace(description+" "+utils.Decolorise(line)) + "\n"
}
t.Log("\nactual: \n" + output)
assert.Equal(t,
trimmedExpectedOutput,
output)
})
}
}
func TestRenderPipeSet(t *testing.T) {
cyan := style.FgCyan
red := style.FgRed
green := style.FgGreen
// blue := style.FgBlue
yellow := style.FgYellow
magenta := style.FgMagenta
nothing := style.Nothing
hashPool := &utils.StringPool{}
pool := func(s string) *string { return hashPool.Add(s) }
tests := []struct {
name string
pipes []Pipe
commit *models.Commit
prevCommit *models.Commit
expectedStr string
expectedStyles []style.TextStyle
}{
{
name: "single cell",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a"), toHash: pool("b"), kind: TERMINATES, style: &cyan},
{fromPos: 0, toPos: 0, fromHash: pool("b"), toHash: pool("c"), kind: STARTS, style: &green},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "a"}),
expectedStr: "○",
expectedStyles: []style.TextStyle{green},
},
{
name: "single cell, selected",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a"), toHash: pool("selected"), kind: TERMINATES, style: &cyan},
{fromPos: 0, toPos: 0, fromHash: pool("selected"), toHash: pool("c"), kind: STARTS, style: &green},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "a"}),
expectedStr: "○",
expectedStyles: []style.TextStyle{highlightStyle},
},
{
name: "terminating hook and starting hook, selected",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a"), toHash: pool("selected"), kind: TERMINATES, style: &cyan},
{fromPos: 1, toPos: 0, fromHash: pool("c"), toHash: pool("selected"), kind: TERMINATES, style: &yellow},
{fromPos: 0, toPos: 0, fromHash: pool("selected"), toHash: pool("d"), kind: STARTS, style: &green},
{fromPos: 0, toPos: 1, fromHash: pool("selected"), toHash: pool("e"), kind: STARTS, style: &green},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "a"}),
expectedStr: "◎─╮",
expectedStyles: []style.TextStyle{
highlightStyle, highlightStyle, highlightStyle,
},
},
{
name: "terminating hook and starting hook, prioritise the terminating one",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a"), toHash: pool("b"), kind: TERMINATES, style: &red},
{fromPos: 1, toPos: 0, fromHash: pool("c"), toHash: pool("b"), kind: TERMINATES, style: &magenta},
{fromPos: 0, toPos: 0, fromHash: pool("b"), toHash: pool("d"), kind: STARTS, style: &green},
{fromPos: 0, toPos: 1, fromHash: pool("b"), toHash: pool("e"), kind: STARTS, style: &green},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "a"}),
expectedStr: "◎─│",
expectedStyles: []style.TextStyle{
green, green, magenta,
},
},
{
name: "starting and terminating pipe sharing some space",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a1"), toHash: pool("a2"), kind: TERMINATES, style: &red},
{fromPos: 0, toPos: 0, fromHash: pool("a2"), toHash: pool("a3"), kind: STARTS, style: &yellow},
{fromPos: 1, toPos: 1, fromHash: pool("b1"), toHash: pool("b2"), kind: CONTINUES, style: &magenta},
{fromPos: 3, toPos: 0, fromHash: pool("e1"), toHash: pool("a2"), kind: TERMINATES, style: &green},
{fromPos: 0, toPos: 2, fromHash: pool("a2"), toHash: pool("c3"), kind: STARTS, style: &yellow},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "a1"}),
expectedStr: "◎─│─┬─╯",
expectedStyles: []style.TextStyle{
yellow, yellow, magenta, yellow, yellow, green, green,
},
},
{
name: "starting and terminating pipe sharing some space, with selection",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a1"), toHash: pool("selected"), kind: TERMINATES, style: &red},
{fromPos: 0, toPos: 0, fromHash: pool("selected"), toHash: pool("a3"), kind: STARTS, style: &yellow},
{fromPos: 1, toPos: 1, fromHash: pool("b1"), toHash: pool("b2"), kind: CONTINUES, style: &magenta},
{fromPos: 3, toPos: 0, fromHash: pool("e1"), toHash: pool("selected"), kind: TERMINATES, style: &green},
{fromPos: 0, toPos: 2, fromHash: pool("selected"), toHash: pool("c3"), kind: STARTS, style: &yellow},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "a1"}),
expectedStr: "◎───╮ ╯",
expectedStyles: []style.TextStyle{
highlightStyle, highlightStyle, highlightStyle, highlightStyle, highlightStyle, nothing, green,
},
},
{
name: "many terminating pipes",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a1"), toHash: pool("a2"), kind: TERMINATES, style: &red},
{fromPos: 0, toPos: 0, fromHash: pool("a2"), toHash: pool("a3"), kind: STARTS, style: &yellow},
{fromPos: 1, toPos: 0, fromHash: pool("b1"), toHash: pool("a2"), kind: TERMINATES, style: &magenta},
{fromPos: 2, toPos: 0, fromHash: pool("c1"), toHash: pool("a2"), kind: TERMINATES, style: &green},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "a1"}),
expectedStr: "○─┴─╯",
expectedStyles: []style.TextStyle{
yellow, magenta, magenta, green, green,
},
},
{
name: "starting pipe passing through",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a1"), toHash: pool("a2"), kind: TERMINATES, style: &red},
{fromPos: 0, toPos: 0, fromHash: pool("a2"), toHash: pool("a3"), kind: STARTS, style: &yellow},
{fromPos: 0, toPos: 3, fromHash: pool("a2"), toHash: pool("d3"), kind: STARTS, style: &yellow},
{fromPos: 1, toPos: 1, fromHash: pool("b1"), toHash: pool("b3"), kind: CONTINUES, style: &magenta},
{fromPos: 2, toPos: 2, fromHash: pool("c1"), toHash: pool("c3"), kind: CONTINUES, style: &green},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "a1"}),
expectedStr: "◎─│─│─╮",
expectedStyles: []style.TextStyle{
yellow, yellow, magenta, yellow, green, yellow, yellow,
},
},
{
name: "starting and terminating path crossing continuing path",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a1"), toHash: pool("a2"), kind: TERMINATES, style: &red},
{fromPos: 0, toPos: 0, fromHash: pool("a2"), toHash: pool("a3"), kind: STARTS, style: &yellow},
{fromPos: 0, toPos: 1, fromHash: pool("a2"), toHash: pool("b3"), kind: STARTS, style: &yellow},
{fromPos: 1, toPos: 1, fromHash: pool("b1"), toHash: pool("a2"), kind: CONTINUES, style: &green},
{fromPos: 2, toPos: 0, fromHash: pool("c1"), toHash: pool("a2"), kind: TERMINATES, style: &magenta},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "a1"}),
expectedStr: "◎─│─╯",
expectedStyles: []style.TextStyle{
yellow, yellow, green, magenta, magenta,
},
},
{
name: "another clash of starting and terminating paths",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a1"), toHash: pool("a2"), kind: TERMINATES, style: &red},
{fromPos: 0, toPos: 0, fromHash: pool("a2"), toHash: pool("a3"), kind: STARTS, style: &yellow},
{fromPos: 0, toPos: 1, fromHash: pool("a2"), toHash: pool("b3"), kind: STARTS, style: &yellow},
{fromPos: 2, toPos: 2, fromHash: pool("c1"), toHash: pool("c3"), kind: CONTINUES, style: &green},
{fromPos: 3, toPos: 0, fromHash: pool("d1"), toHash: pool("a2"), kind: TERMINATES, style: &magenta},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "a1"}),
expectedStr: "◎─┬─│─╯",
expectedStyles: []style.TextStyle{
yellow, yellow, yellow, magenta, green, magenta, magenta,
},
},
{
name: "commit whose previous commit is selected",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("selected"), toHash: pool("a2"), kind: TERMINATES, style: &red},
{fromPos: 0, toPos: 0, fromHash: pool("a2"), toHash: pool("a3"), kind: STARTS, style: &yellow},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "selected"}),
expectedStr: "○",
expectedStyles: []style.TextStyle{
yellow,
},
},
{
name: "commit whose previous commit is selected and is a merge commit",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("selected"), toHash: pool("a2"), kind: TERMINATES, style: &red},
{fromPos: 1, toPos: 1, fromHash: pool("selected"), toHash: pool("b3"), kind: CONTINUES, style: &red},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "selected"}),
expectedStr: "○ │",
expectedStyles: []style.TextStyle{
highlightStyle, nothing, highlightStyle,
},
},
{
name: "commit whose previous commit is selected and is a merge commit, with continuing pipe inbetween",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("selected"), toHash: pool("a2"), kind: TERMINATES, style: &red},
{fromPos: 1, toPos: 1, fromHash: pool("z1"), toHash: pool("z3"), kind: CONTINUES, style: &green},
{fromPos: 2, toPos: 2, fromHash: pool("selected"), toHash: pool("b3"), kind: CONTINUES, style: &red},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "selected"}),
expectedStr: "○ │ │",
expectedStyles: []style.TextStyle{
highlightStyle, nothing, green, nothing, highlightStyle,
},
},
{
name: "when previous commit is selected, not a merge commit, and spawns a continuing pipe",
pipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a1"), toHash: pool("a2"), kind: TERMINATES, style: &red},
{fromPos: 0, toPos: 0, fromHash: pool("a2"), toHash: pool("a3"), kind: STARTS, style: &green},
{fromPos: 0, toPos: 1, fromHash: pool("a2"), toHash: pool("b3"), kind: STARTS, style: &green},
{fromPos: 1, toPos: 0, fromHash: pool("selected"), toHash: pool("a2"), kind: TERMINATES, style: &yellow},
},
prevCommit: models.NewCommit(hashPool, models.NewCommitOpts{Hash: "selected"}),
expectedStr: "◎─╯",
expectedStyles: []style.TextStyle{
highlightStyle, highlightStyle, highlightStyle,
},
},
}
oldColorLevel := color.ForceSetColorLevel(terminfo.ColorLevelMillions)
defer color.ForceSetColorLevel(oldColorLevel)
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
actualStr := renderPipeSet(test.pipes, pool("selected"), test.prevCommit)
t.Log("actual cells:")
t.Log(actualStr)
expectedStr := ""
if len([]rune(test.expectedStr)) != len(test.expectedStyles) {
t.Fatalf("Error in test setup: you have %d characters in the expected output (%s) but have specified %d styles", len([]rune(test.expectedStr)), test.expectedStr, len(test.expectedStyles))
}
for i, char := range []rune(test.expectedStr) {
expectedStr += test.expectedStyles[i].Sprint(string(char))
}
expectedStr += " "
t.Log("expected cells:")
t.Log(expectedStr)
assert.Equal(t, expectedStr, actualStr)
})
}
}
func TestGetNextPipes(t *testing.T) {
hashPool := &utils.StringPool{}
pool := func(s string) *string { return hashPool.Add(s) }
tests := []struct {
prevPipes []Pipe
commit *models.Commit
expected []Pipe
}{
{
prevPipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a"), toHash: pool("b"), kind: STARTS, style: &style.FgDefault},
},
commit: models.NewCommit(hashPool, models.NewCommitOpts{
Hash: "b",
Parents: []string{"c"},
}),
expected: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a"), toHash: pool("b"), kind: TERMINATES, style: &style.FgDefault},
{fromPos: 0, toPos: 0, fromHash: pool("b"), toHash: pool("c"), kind: STARTS, style: &style.FgDefault},
},
},
{
prevPipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a"), toHash: pool("b"), kind: TERMINATES, style: &style.FgDefault},
{fromPos: 0, toPos: 0, fromHash: pool("b"), toHash: pool("c"), kind: STARTS, style: &style.FgDefault},
{fromPos: 0, toPos: 1, fromHash: pool("b"), toHash: pool("d"), kind: STARTS, style: &style.FgDefault},
},
commit: models.NewCommit(hashPool, models.NewCommitOpts{
Hash: "d",
Parents: []string{"e"},
}),
expected: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("b"), toHash: pool("c"), kind: CONTINUES, style: &style.FgDefault},
{fromPos: 1, toPos: 1, fromHash: pool("b"), toHash: pool("d"), kind: TERMINATES, style: &style.FgDefault},
{fromPos: 1, toPos: 1, fromHash: pool("d"), toHash: pool("e"), kind: STARTS, style: &style.FgDefault},
},
},
{
prevPipes: []Pipe{
{fromPos: 0, toPos: 0, fromHash: pool("a"), toHash: pool("root"), kind: TERMINATES, style: &style.FgDefault},
},
commit: models.NewCommit(hashPool, models.NewCommitOpts{
Hash: "root",
Parents: []string{},
}),
expected: []Pipe{
{fromPos: 1, toPos: 1, fromHash: pool("root"), toHash: pool(models.EmptyTreeCommitHash), kind: STARTS, style: &style.FgDefault},
},
},
}
oldColorLevel := color.ForceSetColorLevel(terminfo.ColorLevelMillions)
defer color.ForceSetColorLevel(oldColorLevel)
for _, test := range tests {
getStyle := func(c *models.Commit) *style.TextStyle { return &style.FgDefault }
pipes := getNextPipes(test.prevPipes, test.commit, getStyle)
// rendering cells so that it's easier to see what went wrong
actualStr := renderPipeSet(pipes, pool("selected"), nil)
expectedStr := renderPipeSet(test.expected, pool("selected"), nil)
t.Log("expected cells:")
t.Log(expectedStr)
t.Log("actual cells:")
t.Log(actualStr)
assert.EqualValues(t, test.expected, pipes)
}
}
func BenchmarkRenderCommitGraph(b *testing.B) {
oldColorLevel := color.ForceSetColorLevel(terminfo.ColorLevelMillions)
defer color.ForceSetColorLevel(oldColorLevel)
hashPool := &utils.StringPool{}
commits := generateCommits(hashPool, 50)
getStyle := func(commit *models.Commit) *style.TextStyle {
return authors.AuthorStyle(commit.AuthorName)
}
b.ResetTimer()
for b.Loop() {
RenderCommitGraph(commits, hashPool.Add("selected"), getStyle)
}
}
func generateCommits(hashPool *utils.StringPool, count int) []*models.Commit {
rnd := rand.New(rand.NewSource(1234))
pool := []*models.Commit{models.NewCommit(hashPool, models.NewCommitOpts{Hash: "a", AuthorName: "A"})}
commits := make([]*models.Commit, 0, count)
authorPool := []string{"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"}
for len(commits) < count {
currentCommitIdx := rnd.Intn(len(pool))
currentCommit := pool[currentCommitIdx]
pool = append(pool[0:currentCommitIdx], pool[currentCommitIdx+1:]...)
// I need to pick a random number of parents to add
parentCount := rnd.Intn(2) + 1
parentHashes := currentCommit.Parents()
for j := range parentCount {
reuseParent := rnd.Intn(6) != 1 && j <= len(pool)-1 && j != 0
var newParent *models.Commit
if reuseParent {
newParent = pool[j]
} else {
newParent = models.NewCommit(hashPool, models.NewCommitOpts{
Hash: fmt.Sprintf("%s%d", currentCommit.Hash(), j),
AuthorName: authorPool[rnd.Intn(len(authorPool))],
})
pool = append(pool, newParent)
}
parentHashes = append(parentHashes, newParent.Hash())
}
changedCommit := models.NewCommit(hashPool, models.NewCommitOpts{
Hash: currentCommit.Hash(),
AuthorName: currentCommit.AuthorName,
Parents: parentHashes,
})
commits = append(commits, changedCommit)
}
return commits
}