platform: modularize api/gui, add docs-tests-web foundation, and refresh root config

selective-vpn-api/app/vpn_locations_cache_test.go

@@ -0,0 +1,59 @@
+package app
+
+import "testing"
+
+func TestParseVPNLocationsOutput(t *testing.T) {
+	raw := `
+ISO Country Region Ping
+DE Germany Frankfurt 35
+US United States New-York 120
+US United States Los-Angeles 130
+`
+
+	locs, err := parseVPNLocationsOutput(raw)
+	if err != nil {
+		t.Fatalf("parseVPNLocationsOutput returned error: %v", err)
+	}
+	if len(locs) != 3 {
+		t.Fatalf("expected 3 locations, got %d", len(locs))
+	}
+	if locs[0].ISO != "DE" || locs[1].ISO != "US" || locs[2].ISO != "US" {
+		t.Fatalf("unexpected iso order: %+v", locs)
+	}
+	if locs[1].Target != "New-York" {
+		t.Fatalf("unexpected target parse: %+v", locs[1])
+	}
+	if locs[2].Target != "Los-Angeles" {
+		t.Fatalf("unexpected target parse: %+v", locs[2])
+	}
+}
+
+func TestParseVPNLocationsOutputRejectsInvalid(t *testing.T) {
+	raw := "error: not logged in\ntry: adguardvpn-cli-root login\n"
+	if _, err := parseVPNLocationsOutput(raw); err == nil {
+		t.Fatal("expected parse error for invalid output, got nil")
+	}
+}
+
+func TestInferVPNLocationTargetFromLabel(t *testing.T) {
+	got := inferVPNLocationTargetFromLabel("US United States Los Angeles (271 ms)", "US")
+	if got != "United States Los Angeles" {
+		t.Fatalf("unexpected target for basic label: %q", got)
+	}
+	got = inferVPNLocationTargetFromLabel("RU Russia Moscow (Virtual) (29 ms)", "RU")
+	if got != "Russia Moscow (Virtual)" {
+		t.Fatalf("unexpected target for virtual label: %q", got)
+	}
+}
+
+func TestCommonPrefixTokens(t *testing.T) {
+	in := [][]string{
+		{"United", "States", "Los", "Angeles"},
+		{"United", "States", "Boston"},
+		{"United", "States", "Seattle"},
+	}
+	pfx := commonPrefixTokens(in)
+	if len(pfx) != 2 || pfx[0] != "United" || pfx[1] != "States" {
+		t.Fatalf("unexpected common prefix: %#v", pfx)
+	}
+}