pause_test.gno

  1package config
  2
  3import (
  4	"testing"
  5
  6	"gno.land/p/moul/pausable/v0"
  7	"gno.land/p/nt/uassert/v0"
  8)
  9
 10func TestPauseDefaultRunning(t *testing.T) {
 11	resetSettings()
 12	uassert.False(t, IsPausedFor(otherRealm))
 13	uassert.True(t, PauseFor(otherRealm).AllowsRead())
 14	uassert.True(t, PauseFor(otherRealm).AllowsWrite())
 15	AssertWritableFor(otherRealm)
 16	AssertReadableFor(otherRealm)
 17}
 18
 19func TestPauseGlobal(cur realm, t *testing.T) {
 20	resetSettings()
 21	testing.SetRealm(testing.NewUserRealm(originAddr))
 22	Set(cross(cur), KeyPause, "readonly")
 23
 24	// Reaches every realm.
 25	for _, path := range []string{otherRealm, "gno.land/r/moul/home", "gno.land/r/someone/else"} {
 26		uassert.True(t, IsPausedFor(path), path+" should be held back")
 27		uassert.True(t, PauseFor(path).AllowsRead(), path+" should still read")
 28		uassert.False(t, PauseFor(path).AllowsWrite(), path+" should refuse writes")
 29	}
 30
 31	uassert.PanicsWithMessage(t, cur, "writes are paused", func() {
 32		AssertWritableFor(otherRealm)
 33	})
 34	AssertReadableFor(otherRealm)
 35}
 36
 37func TestPauseScoped(cur realm, t *testing.T) {
 38	resetSettings()
 39	testing.SetRealm(testing.NewUserRealm(originAddr))
 40	Set(cross(cur), KeyFor(KeyPause, otherRealm), "paused: incident")
 41
 42	uassert.True(t, IsPausedFor(otherRealm))
 43	uassert.False(t, PauseFor(otherRealm).AllowsRead())
 44	uassert.False(t, IsPausedFor("gno.land/r/moul/home"), "another realm is unaffected")
 45
 46	uassert.PanicsWithMessage(t, cur, "paused: incident", func() {
 47		AssertReadableFor(otherRealm)
 48	})
 49}
 50
 51// TestGlobalPauseCannotBeDefeated is the reason the two combine with
 52// Strictest. A per-realm entry left behind from last month must not re-open a
 53// realm during a global halt.
 54func TestGlobalPauseCannotBeDefeated(cur realm, t *testing.T) {
 55	resetSettings()
 56	testing.SetRealm(testing.NewUserRealm(originAddr))
 57	Set(cross(cur), KeyFor(KeyPause, otherRealm), "running")
 58	testing.SetRealm(testing.NewUserRealm(originAddr))
 59	Set(cross(cur), KeyPause, "paused: chain incident")
 60
 61	uassert.False(t, PauseFor(otherRealm).AllowsRead(),
 62		"an explicit per-realm 'running' does not survive a global pause")
 63	uassert.Equal(t, "chain incident", PauseFor(otherRealm).Reason)
 64
 65	// The other direction works: a per-realm pause under a running global.
 66	resetSettings()
 67	testing.SetRealm(testing.NewUserRealm(originAddr))
 68	Set(cross(cur), KeyFor(KeyPause, otherRealm), "paused: just this one")
 69	uassert.False(t, PauseFor(otherRealm).AllowsRead())
 70	uassert.True(t, PauseFor("gno.land/r/moul/home").AllowsRead())
 71}
 72
 73// TestPauseValueValidatedOnWrite is the other half of failing closed. Because
 74// pausable.MustParse turns an unreadable value into Paused, an unvalidated
 75// typo here would take every realm offline at the next render; refusing the
 76// write turns that into a failed transaction the writer sees at once.
 77func TestPauseValueValidatedOnWrite(cur realm, t *testing.T) {
 78	resetSettings()
 79
 80	for _, bad := range []string{"yes", "true", "1", "stop", "read-only"} {
 81		testing.SetRealm(testing.NewUserRealm(originAddr))
 82		uassert.AbortsContains(t, cur, "invalid pause value", func() {
 83			Set(cross(cur), KeyPause, bad)
 84		})
 85	}
 86	uassert.Equal(t, 0, Size(), "no bad value was stored")
 87
 88	// The scoped key is validated too: the check is on the key's NAME, so it
 89	// cannot be sidestepped by scoping it.
 90	testing.SetRealm(testing.NewUserRealm(originAddr))
 91	uassert.AbortsContains(t, cur, "invalid pause value", func() {
 92		Set(cross(cur), KeyFor(KeyPause, otherRealm), "yes")
 93	})
 94
 95	// And every value the reader understands is accepted.
 96	for _, good := range []string{"", "running", "readonly", "paused", "paused: why"} {
 97		testing.SetRealm(testing.NewUserRealm(originAddr))
 98		Set(cross(cur), KeyPause, good)
 99		uassert.Equal(t, good, Get(KeyPause))
100	}
101
102	// A setting that is not pause is not subject to the grammar.
103	testing.SetRealm(testing.NewUserRealm(originAddr))
104	Set(cross(cur), "some.key", "yes")
105	uassert.Equal(t, "yes", Get("some.key"))
106}
107
108func TestPauseZeroArgFormsNameTheCaller(cur realm, t *testing.T) {
109	resetSettings()
110	testing.SetRealm(testing.NewUserRealm(originAddr))
111	Set(cross(cur), KeyFor(KeyPause, otherRealm), "paused")
112
113	testing.SetRealm(testing.NewCodeRealm(otherRealm))
114	uassert.True(t, IsPaused())
115	uassert.Equal(t, int(pausable.Paused), int(Pause().Level))
116
117	testing.SetRealm(testing.NewCodeRealm("gno.land/r/moul/home"))
118	uassert.False(t, IsPaused(), "another realm is unaffected")
119	AssertWritable()
120}