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|
package config
import (
"bytes"
"os"
"path/filepath"
"testing"
)
func TestConfig_parseReader(t *testing.T) {
tests := []struct {
name string
input string
wantBar int
wantExt bool
}{
{"empty", "", 20, false},
{"barwidth", "barwidth=42\n", 42, false},
{"extended_1", "extended=1\n", 20, true},
{"extended_true", "extended=true\n", 20, true},
{"comments", "# foo\nbarwidth=10\n# bar\n", 10, false},
{"unknown_key", "barwidth=5\nunknown=ignored\n", 5, false},
{"multiple", "barwidth=30\nextended=1\nshowcores=1\n", 30, true},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
c := Default()
f, _ := os.Open(os.DevNull)
defer f.Close()
// Use a temp file with the content since parseReader takes *os.File
dir := t.TempDir()
path := filepath.Join(dir, "rc")
if err := os.WriteFile(path, []byte(tt.input), 0600); err != nil {
t.Fatal(err)
}
f2, err := os.Open(path)
if err != nil {
t.Fatal(err)
}
defer f2.Close()
if err := c.parseReader(f2); err != nil {
t.Fatal(err)
}
if c.BarWidth != tt.wantBar {
t.Errorf("BarWidth = %d, want %d", c.BarWidth, tt.wantBar)
}
if c.Extended != tt.wantExt {
t.Errorf("Extended = %v, want %v", c.Extended, tt.wantExt)
}
})
}
}
func TestConfig_writeTo(t *testing.T) {
c := Default()
c.BarWidth = 25
c.ShowCores = true
dir := t.TempDir()
path := filepath.Join(dir, "out")
f, err := os.Create(path)
if err != nil {
t.Fatal(err)
}
err = c.writeTo(f)
f.Close()
if err != nil {
t.Fatal(err)
}
data, _ := os.ReadFile(path)
if len(data) == 0 {
t.Error("writeTo wrote nothing")
}
if !bytes.Contains(data, []byte("barwidth=25")) {
t.Errorf("expected barwidth=25 in %s", data)
}
if !bytes.Contains(data, []byte("showcores=1")) {
t.Errorf("expected showcores=1 in %s", data)
}
}
func TestGetClusterHostsFromFile(t *testing.T) {
dir := t.TempDir()
path := filepath.Join(dir, "clusters")
tests := []struct {
name string
content string
cluster string
wantHosts []string
wantErr bool
}{
{"single_host", "foo host1\n", "foo", []string{"host1"}, false},
{"two_hosts", "bar host1 host2\n", "bar", []string{"host1", "host2"}, false},
{"missing_returns_cluster", "x y\n", "missing", []string{"missing"}, false},
{"recursive", "a b\nb c\nc d\n", "a", []string{"d"}, false},
{"cycle", "a b\nb a\n", "a", nil, true},
{"comment_ignored", "# comment\na h1\n", "a", []string{"h1"}, false},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if err := os.WriteFile(path, []byte(tt.content), 0600); err != nil {
t.Fatal(err)
}
got, err := GetClusterHostsFromFile(tt.cluster, path)
if (err != nil) != tt.wantErr {
t.Errorf("GetClusterHostsFromFile() error = %v, wantErr %v", err, tt.wantErr)
return
}
if tt.wantErr {
return
}
if len(got) != len(tt.wantHosts) {
t.Errorf("got %v, want %v", got, tt.wantHosts)
return
}
for i := range got {
if got[i] != tt.wantHosts[i] {
t.Errorf("got[%d] = %s, want %s", i, got[i], tt.wantHosts[i])
}
}
})
}
}
|
