97 lines
3.3 KiB
Go
97 lines
3.3 KiB
Go
package uls
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import (
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"os"
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"testing"
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)
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func TestGrid6(t *testing.T) {
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cases := []struct {
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lat, lon float64
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want string
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}{
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{38.90, -77.03, "FM18lw"}, // Washington DC
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{40.71, -74.00, "FN30xr"}, // New York
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{34.05, -118.24, "DM04vd"}, // Los Angeles
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}
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for _, c := range cases {
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if got := grid6(c.lat, c.lon); got[:4] != c.want[:4] {
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t.Errorf("grid6(%v,%v)=%q want field/square %q", c.lat, c.lon, got, c.want[:4])
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}
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}
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}
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// TestParseGeoNames runs against the real GeoNames US.zip if present in the
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// scratchpad (downloaded during development); skipped otherwise.
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func TestParseGeoNames(t *testing.T) {
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path := os.Getenv("GEONAMES_ZIP")
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if path == "" {
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t.Skip("set GEONAMES_ZIP to the US.zip path to run")
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}
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m, err := parseGeoNames(path)
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if err != nil {
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t.Fatal(err)
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}
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if len(m) < 30000 {
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t.Fatalf("expected >30k ZIPs, got %d", len(m))
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}
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// A known ZIP: 20500 = The White House, DC.
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if r, ok := m["20500"]; !ok || r.state != "DC" {
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t.Errorf("ZIP 20500 = %+v (ok=%v)", r, ok)
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}
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}
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// The real listing captured from data.fcc.gov on 2026-07-25, the day after the
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// FCC renamed complete/ to complete.07242026/ and left an empty complete/
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// behind — which broke the county-database download for every user.
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const fccListing2026 = `<html><head><title>Index of /download/pub/uls</title></head><body>
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<h1>Index of /download/pub/uls</h1>
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<table><tr><th>Name</th><th>Last modified</th><th>Size</th></tr>
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<tr><td><a href="/download/pub/">Parent Directory</a></td><td> </td><td>-</td></tr>
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<tr><td><a href="UAT/">UAT/</a></td><td>2025-04-08 19:30</td><td>-</td></tr>
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<tr><td><a href="complete.07242026/">complete.07242026/</a></td><td>2026-07-24 20:15</td><td>-</td></tr>
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<tr><td><a href="complete/">complete/</a></td><td>2026-07-25 21:15</td><td>-</td></tr>
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<tr><td><a href="daily/">daily/</a></td><td>2026-07-25 21:15</td><td>-</td></tr>
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</table></body></html>`
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func TestParseCompleteDirs(t *testing.T) {
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got := parseCompleteDirs(fccListing2026)
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if len(got) != 1 || got[0] != "complete.07242026/" {
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t.Fatalf("got %v, want [complete.07242026/]", got)
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}
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// "complete/" is deliberately absent: it is the canonical URL, already tried
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// before the listing is consulted, and on this date it was empty.
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for _, d := range got {
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if d == "complete/" {
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t.Error("canonical complete/ should not be offered as a fallback")
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}
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}
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}
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// Several snapshots must be tried newest-first, so a stale one is never
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// preferred over a fresh one.
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func TestParseCompleteDirsPrefersNewestSnapshot(t *testing.T) {
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html := `<a href="complete/">x</a><a href="complete.01052026/">x</a>` +
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`<a href="complete.07242026/">x</a><a href="complete.11302025/">x</a>`
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got := parseCompleteDirs(html)
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want := []string{"complete.07242026/", "complete.01052026/", "complete.11302025/"}
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if len(got) != len(want) {
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t.Fatalf("got %v, want %v", got, want)
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}
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for i := range want {
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if got[i] != want[i] {
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t.Fatalf("got %v, want %v", got, want)
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}
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}
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}
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func TestSnapshotDate(t *testing.T) {
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if d := snapshotDate("complete.07242026/"); d.Format("2006-01-02") != "2026-07-24" {
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t.Errorf("complete.07242026/ → %s, want 2026-07-24", d.Format("2006-01-02"))
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}
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// An undated name must sort last rather than crash.
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if !snapshotDate("complete.backup/").IsZero() {
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t.Error("an undated directory should yield the zero time")
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}
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}
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