jochen
76b63744e6
Modules talk over the bus. The power module's bundle puts each fresh reading of its own sampler in its state draw, keyed by the machine; the bar's block shows that state, which the bar's bundle watches under the read the mesh grants it. A new catalogue check refuses a module naming another module's path under /run or /var/lib.
93 lines
3.0 KiB
Go
93 lines
3.0 KiB
Go
package main
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import (
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"errors"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"testing"
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"time"
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stdio "git.novox.be/novox/mesh-sdk/go"
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)
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// Defends novox/hq ADR 0260: a value another module keeps reaches the bar over the bus, through this
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// module's own bundle and directory, and an old one is not shown as if it were now.
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func TestAValueIsKeptAsItsTextAndGoneWhenDeleted(t *testing.T) {
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dir := t.TempDir()
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w := Wanted{"power.draw", "laptop"}
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if err := keep(dir, w, stdio.StateChange{Op: "put", Value: []byte(`{"text":"18.2 W machine","watts":18.2}`)}); err != nil {
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t.Fatal(err)
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}
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b, err := os.ReadFile(filepath.Join(dir, "power.draw@laptop"))
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if err != nil || string(b) != "18.2 W machine\n" {
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t.Fatalf("%q %v", b, err)
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}
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if err := keep(dir, w, stdio.StateChange{Op: "delete"}); err != nil {
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t.Fatal(err)
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}
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if _, err := os.Stat(filepath.Join(dir, "power.draw@laptop")); !os.IsNotExist(err) {
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t.Fatal("a deleted value is still shown")
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}
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if err := keep(dir, w, stdio.StateChange{Op: "put", Value: []byte(`"no text"`)}); err == nil {
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t.Fatal("a value with no text was kept")
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}
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}
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func TestARefusedWatchIsTriedAgainAndAWatchedOneIsNot(t *testing.T) {
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bar := filepath.Join(t.TempDir(), "bottom-bar.toml")
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if err := os.WriteFile(bar, []byte(`command = "~/.local/bin/i3status-value power.draw laptop"`+"\n"), 0o644); err != nil {
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t.Fatal(err)
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}
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watching := map[Wanted]bool{}
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calls := 0
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refuse := func(string, string, func(stdio.StateChange) error) error { calls++; return errors.New("not granted") }
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if said := followValues([]string{bar}, t.TempDir(), watching, refuse); len(said) != 1 || !strings.Contains(said[0], "not granted") {
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t.Fatalf("%v", said)
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}
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accept := func(state, key string, _ func(stdio.StateChange) error) error {
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calls++
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if state != "power.draw" || key != "laptop" {
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t.Fatalf("watched %s %s", state, key)
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}
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return nil
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}
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followValues([]string{bar}, t.TempDir(), watching, accept)
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followValues([]string{bar}, t.TempDir(), watching, accept)
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if calls != 2 {
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t.Fatalf("%d watches; once refused, once taken, then left alone", calls)
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}
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}
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func TestTheBlocksCommandShowsOnlyAFreshValue(t *testing.T) {
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runtime := t.TempDir()
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dir := filepath.Join(runtime, "i3status-rust", "values")
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run := func() string {
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cmd := exec.Command("sh", "../../files/bin/i3status-value", "power.draw", "laptop")
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cmd.Env = append(os.Environ(), "XDG_RUNTIME_DIR="+runtime)
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out, err := cmd.Output()
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if err != nil {
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t.Fatal(err)
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}
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return strings.TrimSpace(string(out))
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}
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if got := run(); got != "" {
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t.Fatalf("no value: %q", got)
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}
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if err := keep(dir, Wanted{"power.draw", "laptop"}, stdio.StateChange{Op: "put", Value: []byte(`{"text":"8.0 W CPU"}`)}); err != nil {
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t.Fatal(err)
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}
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if got := run(); got != "8.0 W CPU" {
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t.Fatalf("fresh: %q", got)
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}
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old := time.Now().Add(-31 * time.Second)
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if err := os.Chtimes(filepath.Join(dir, "power.draw@laptop"), old, old); err != nil {
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t.Fatal(err)
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}
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if got := run(); got != "" {
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t.Fatalf("31 s old: %q", got)
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}
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}
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