Git: components 301-320

commit_list_test.go

@@ -0,0 +1,91 @@
+package mujica
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/egoist/mygo/ui"
+)
+
+var gitTestTime = time.Date(2026, 10, 5, 9, 30, 0, 0, time.UTC)
+
+// gitTestHash is a stable, hash-like hex string for commit i.
+func gitTestHash(i int) string { return fmt.Sprintf("%016x%024x", uint64(i)*0x9E3779B97F4A7C15, i) }
+
+// gitHistory is a linear history of n commits, newest first.
+func gitHistory(n int) []Commit {
+	out := make([]Commit, n)
+	for i := range out {
+		out[i] = Commit{Hash: gitTestHash(n - i), Author: "Sakiko", When: gitTestTime.Add(-time.Duration(i) * time.Hour),
+			Subject: fmt.Sprintf("Commit number %d", n-i)}
+		if i+1 < n {
+			out[i].Parents = []string{gitTestHash(n - i - 1)}
+		}
+	}
+	return out
+}
+
+func TestCommitListChooseAndOpen(t *testing.T) {
+	commits := gitHistory(5)
+	commits[0].Refs = []string{"main"}
+	var s ListState[string]
+	changes, opens := 0, 0
+	tt := ui.NewTester(func(c *ui.Context) {
+		Use(c, Settings{})
+		r := CommitList(c, &s, commits, CommitListOptions{})
+		r.Element.Height(300)
+		if r.Changed() {
+			changes++
+		}
+		if r.Submitted() {
+			opens++
+		}
+	}, 700, 340)
+	if !tt.HasText("main") || !tt.HasText("1715609") || !tt.HasText("2026-10-05 09:30") {
+		t.Fatalf("row parts: %q", tt.Texts())
+	}
+	if err := tt.Click("Commit number 3"); err != nil {
+		t.Fatal(err)
+	}
+	if key, _ := s.Selected(); key != commits[2].Hash || changes != 1 {
+		t.Fatalf("selected %q changes %d", key, changes)
+	}
+	tt.Key(0, ui.KeyDown)
+	tt.Key(0, ui.KeyEnter)
+	if key, _ := s.Selected(); key != commits[3].Hash || opens != 1 {
+		t.Fatalf("keyboard: %q opens %d", key, opens)
+	}
+}
+
+func TestCommitListEmptyAndInvalid(t *testing.T) {
+	var s ListState[string]
+	tt := ui.NewTester(func(c *ui.Context) {
+		Use(c, Settings{})
+		CommitList(c, &s, nil, CommitListOptions{})
+	}, 400, 200)
+	if !tt.HasText("No commits") {
+		t.Fatalf("empty: %q", tt.Texts())
+	}
+	defer func() {
+		if recover() == nil {
+			t.Fatal("hashless commit did not panic")
+		}
+	}()
+	ui.Render(func(c *ui.Context) {
+		Use(c, Settings{})
+		var s ListState[string]
+		CommitList(c, &s, []Commit{{Subject: "x"}}, CommitListOptions{})
+	}, 300, 100, 1)
+}
+
+func TestCommitListSnapshot(t *testing.T) {
+	commits := gitHistory(4)
+	commits[0].Refs = []string{"main", "v1.1"}
+	snapshot(t, "commit_list", 640, 220, func(c *ui.Context) {
+		s := ui.Local(c.Root(), "list", func() *ListState[string] { return &ListState[string]{} })
+		ui.Column(c).Padding(16).Children(func() {
+			CommitList(c, *s, commits, CommitListOptions{}).Element.Height(180)
+		})
+	})
+}