382 lines
12 KiB
Go
382 lines
12 KiB
Go
package nws
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import (
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"os"
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"path/filepath"
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"reflect"
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"strings"
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"testing"
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"time"
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)
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func TestParseForecastDiscussionSectionHeading(t *testing.T) {
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tests := []struct {
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name string
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line string
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wantSection string
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wantQualifier string
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wantOK bool
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}{
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{
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name: "ellipsis-first key messages",
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line: ".KEY MESSAGES... (Through Tonight)",
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wantSection: forecastDiscussionSectionKeyMessages,
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wantQualifier: "(Through Tonight)",
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wantOK: true,
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},
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{
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name: "ellipsis-first short term",
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line: ".SHORT TERM... (Sunday)",
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wantSection: forecastDiscussionSectionShortTerm,
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wantQualifier: "(Sunday)",
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wantOK: true,
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},
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{
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name: "ellipsis-first long term",
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line: ".LONG TERM... (Monday Through Friday)",
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wantSection: forecastDiscussionSectionLongTerm,
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wantQualifier: "(Monday Through Friday)",
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wantOK: true,
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},
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{
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name: "ellipsis-first aviation without qualifier",
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line: ".AVIATION...",
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wantSection: forecastDiscussionSectionAviation,
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wantOK: true,
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},
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{
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name: "slash-qualified key messages",
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line: ".KEY MESSAGES /Tonight/...",
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wantSection: forecastDiscussionSectionKeyMessages,
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wantQualifier: "Tonight",
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wantOK: true,
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},
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{
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name: "slash-qualified short term with outer whitespace",
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line: " .SHORT TERM /Through Late Sunday Night/... ",
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wantSection: forecastDiscussionSectionShortTerm,
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wantQualifier: "Through Late Sunday Night",
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wantOK: true,
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},
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{
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name: "slash-qualified long term",
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line: ".LONG TERM /Monday through Next Saturday/...",
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wantSection: forecastDiscussionSectionLongTerm,
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wantQualifier: "Monday through Next Saturday",
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wantOK: true,
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},
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{
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name: "slash-qualified aviation",
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line: ".AVIATION /18Z TAFS/...",
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wantSection: forecastDiscussionSectionAviation,
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wantQualifier: "18Z TAFS",
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wantOK: true,
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},
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{
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name: "unknown identity",
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line: ".SYNOPSIS... Overview",
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wantOK: false,
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},
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{
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name: "slash qualifier missing opening slash",
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line: ".SHORT TERM Through Tonight/...",
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wantOK: false,
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},
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{
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name: "slash qualifier missing closing slash",
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line: ".SHORT TERM /Through Tonight...",
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wantOK: false,
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},
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{
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name: "slash qualifier contains embedded slash",
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line: ".SHORT TERM /Tonight/Sunday/...",
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wantOK: false,
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},
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{
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name: "slash qualifier whitespace only",
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line: ".SHORT TERM / /...",
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wantOK: false,
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},
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{
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name: "slash qualifier missing required whitespace",
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line: ".SHORT TERM/Through Tonight/...",
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wantOK: false,
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},
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{
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name: "slash qualifier missing final ellipsis",
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line: ".SHORT TERM /Through Tonight/..",
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wantOK: false,
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},
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{
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name: "slash qualifier has trailing text",
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line: ".SHORT TERM /Through Tonight/... more",
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wantOK: false,
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},
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{
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name: "lowercase identity",
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line: ".short term... (Tonight)",
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wantOK: false,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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got, ok := parseForecastDiscussionSectionHeading(tt.line)
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if ok != tt.wantOK {
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t.Fatalf("parseForecastDiscussionSectionHeading(%q) ok = %t, want %t", tt.line, ok, tt.wantOK)
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}
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if !ok {
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return
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}
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if got.section != tt.wantSection {
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t.Fatalf("section = %q, want %q", got.section, tt.wantSection)
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}
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if got.qualifier != tt.wantQualifier {
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t.Fatalf("qualifier = %q, want %q", got.qualifier, tt.wantQualifier)
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}
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})
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}
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}
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func TestExtractForecastDiscussionSectionStopsAtSlashQualifiedHeading(t *testing.T) {
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block, ok := extractForecastDiscussionSection([]string{
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".LONG TERM /Monday through Next Saturday/...",
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"Long-term prose.",
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".AVIATION /18Z TAFS/...",
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"Aviation prose.",
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}, forecastDiscussionSectionLongTerm)
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if !ok {
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t.Fatalf("extractForecastDiscussionSection() found no LONG TERM block")
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}
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if block.heading.qualifier != "Monday through Next Saturday" {
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t.Fatalf("qualifier = %q, want normalized slash qualifier", block.heading.qualifier)
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}
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wantBody := []string{"Long-term prose."}
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if !reflect.DeepEqual(block.body, wantBody) {
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t.Fatalf("body = %#v, want %#v", block.body, wantBody)
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}
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}
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func TestExtractForecastDiscussionSectionAllowsEmptyBodyBeforeHeading(t *testing.T) {
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block, ok := extractForecastDiscussionSection([]string{
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".SHORT TERM... (Tonight)",
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".LONG TERM... (Tomorrow)",
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"Long-term prose.",
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}, forecastDiscussionSectionShortTerm)
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if !ok {
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t.Fatalf("extractForecastDiscussionSection() found no SHORT TERM block")
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}
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if len(block.body) != 0 {
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t.Fatalf("body = %#v, want empty body", block.body)
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}
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}
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func TestExtractForecastDiscussionSectionKeepsUnrecognizedHeadingLikeLines(t *testing.T) {
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block, ok := extractForecastDiscussionSection([]string{
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".SHORT TERM... (Tonight)",
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".SYNOPSIS... This unknown section stays in the body.",
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".LONG TERM /Tomorrow/..",
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".LONG TERM /Tomorrow/Next Week/...",
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"Expected short-term prose.",
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".LONG TERM... (Tomorrow)",
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"Long-term prose.",
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}, forecastDiscussionSectionShortTerm)
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if !ok {
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t.Fatalf("extractForecastDiscussionSection() found no SHORT TERM block")
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}
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wantBody := []string{
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".SYNOPSIS... This unknown section stays in the body.",
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".LONG TERM /Tomorrow/..",
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".LONG TERM /Tomorrow/Next Week/...",
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"Expected short-term prose.",
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}
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if !reflect.DeepEqual(block.body, wantBody) {
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t.Fatalf("body = %#v, want %#v", block.body, wantBody)
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}
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}
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func TestParseForecastDiscussionHTMLParsesExpectedFields(t *testing.T) {
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raw := loadForecastDiscussionSampleHTML(t)
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got, err := ParseForecastDiscussionHTML(raw)
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if err != nil {
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t.Fatalf("ParseForecastDiscussionHTML() error = %v", err)
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}
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if got.OfficeID != "LSX" {
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t.Fatalf("OfficeID = %q, want LSX", got.OfficeID)
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}
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if got.OfficeName != "National Weather Service Saint Louis MO" {
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t.Fatalf("OfficeName = %q", got.OfficeName)
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}
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if got.Product != "afd" {
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t.Fatalf("Product = %q, want afd", got.Product)
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}
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wantIssuedAt := time.Date(2026, 3, 28, 19, 24, 0, 0, time.UTC)
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if !got.IssuedAt.Equal(wantIssuedAt) {
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t.Fatalf("IssuedAt = %s, want %s", got.IssuedAt.Format(time.RFC3339), wantIssuedAt.Format(time.RFC3339))
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}
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wantUpdatedAt := time.Date(2026, 3, 28, 20, 29, 47, 0, time.UTC)
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if got.UpdatedAt == nil || !got.UpdatedAt.Equal(wantUpdatedAt) {
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t.Fatalf("UpdatedAt = %v, want %s", got.UpdatedAt, wantUpdatedAt.Format(time.RFC3339))
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}
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wantMessages := []string{
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"Elevated fire danger conditions are expected across a broad area tomorrow afternoon due to breezy southwest winds and low humidity.",
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"Very warm temperatures are expected once again Monday and Tuesday, with highs well into the 80s.",
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"A cold front late Tuesday or early Wednesday brings our next chance of thunderstorms, followed by a cooldown and possibly more chances for rain later in the week.",
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}
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if len(got.KeyMessages) != len(wantMessages) {
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t.Fatalf("KeyMessages len = %d, want %d", len(got.KeyMessages), len(wantMessages))
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}
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for i := range wantMessages {
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if got.KeyMessages[i] != wantMessages[i] {
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t.Fatalf("KeyMessages[%d] = %q, want %q", i, got.KeyMessages[i], wantMessages[i])
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}
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}
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if got.ShortTerm == nil {
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t.Fatalf("ShortTerm is nil")
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}
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if got.ShortTerm.Qualifier != "(Through Late Sunday Night)" {
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t.Fatalf("ShortTerm.Qualifier = %q", got.ShortTerm.Qualifier)
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}
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if got.ShortTerm.IssuedAt == nil || !got.ShortTerm.IssuedAt.Equal(time.Date(2026, 3, 28, 19, 19, 0, 0, time.UTC)) {
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t.Fatalf("ShortTerm.IssuedAt = %v", got.ShortTerm.IssuedAt)
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}
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if !strings.Contains(got.ShortTerm.Text, "After a chilly morning") {
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t.Fatalf("ShortTerm.Text missing expected prose: %q", got.ShortTerm.Text)
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}
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if strings.Contains(got.ShortTerm.Text, "BRC") {
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t.Fatalf("ShortTerm.Text should not include signature: %q", got.ShortTerm.Text)
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}
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if strings.Contains(got.ShortTerm.Text, "\n\n\n") {
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t.Fatalf("ShortTerm.Text contains unexpected paragraph breaks: %q", got.ShortTerm.Text)
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}
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if got.LongTerm == nil {
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t.Fatalf("LongTerm is nil")
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}
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if got.LongTerm.Qualifier != "(Monday through Next Saturday)" {
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t.Fatalf("LongTerm.Qualifier = %q", got.LongTerm.Qualifier)
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}
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if got.LongTerm.IssuedAt == nil || !got.LongTerm.IssuedAt.Equal(time.Date(2026, 3, 28, 19, 19, 0, 0, time.UTC)) {
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t.Fatalf("LongTerm.IssuedAt = %v", got.LongTerm.IssuedAt)
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}
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if !strings.Contains(got.LongTerm.Text, "The peak of the warmth arrives Monday and Tuesday") {
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t.Fatalf("LongTerm.Text missing expected prose: %q", got.LongTerm.Text)
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}
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if strings.Contains(got.LongTerm.Text, "AVIATION") || strings.Contains(got.LongTerm.Text, "WATCHES/WARNINGS/ADVISORIES") {
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t.Fatalf("LongTerm.Text includes content from other sections: %q", got.LongTerm.Text)
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}
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}
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func TestParseForecastDiscussionHTMLSupportsMixedHeadingFormats(t *testing.T) {
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legacy, err := ParseForecastDiscussionHTML(loadForecastDiscussionSampleHTML(t))
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if err != nil {
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t.Fatalf("ParseForecastDiscussionHTML() legacy error = %v", err)
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}
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got, err := ParseForecastDiscussionHTML(loadMixedFormatForecastDiscussionSampleHTML(t))
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if err != nil {
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t.Fatalf("ParseForecastDiscussionHTML() mixed-format error = %v", err)
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}
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if !reflect.DeepEqual(got.KeyMessages, legacy.KeyMessages) {
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t.Fatalf("KeyMessages = %#v, want unchanged %#v", got.KeyMessages, legacy.KeyMessages)
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}
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if got.ShortTerm == nil {
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t.Fatalf("ShortTerm is nil")
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}
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if got.ShortTerm.Qualifier != "Through Late Sunday Night" {
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t.Fatalf("ShortTerm.Qualifier = %q", got.ShortTerm.Qualifier)
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}
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wantIssuedAt := time.Date(2026, 3, 28, 19, 19, 0, 0, time.UTC)
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if got.ShortTerm.IssuedAt == nil || !got.ShortTerm.IssuedAt.Equal(wantIssuedAt) {
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t.Fatalf("ShortTerm.IssuedAt = %v, want %s", got.ShortTerm.IssuedAt, wantIssuedAt.Format(time.RFC3339))
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}
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if !strings.Contains(got.ShortTerm.Text, "After a chilly morning") {
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t.Fatalf("ShortTerm.Text missing expected prose: %q", got.ShortTerm.Text)
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}
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if got.LongTerm == nil {
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t.Fatalf("LongTerm is nil")
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}
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if got.LongTerm.Qualifier != "Monday through Next Saturday" {
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t.Fatalf("LongTerm.Qualifier = %q", got.LongTerm.Qualifier)
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}
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if got.LongTerm.IssuedAt == nil || !got.LongTerm.IssuedAt.Equal(wantIssuedAt) {
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t.Fatalf("LongTerm.IssuedAt = %v, want %s", got.LongTerm.IssuedAt, wantIssuedAt.Format(time.RFC3339))
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}
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if !strings.Contains(got.LongTerm.Text, "The peak of the warmth arrives Monday and Tuesday") {
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t.Fatalf("LongTerm.Text missing expected prose: %q", got.LongTerm.Text)
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}
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if strings.Contains(got.LongTerm.Text, "AVIATION") || strings.Contains(got.LongTerm.Text, "VFR conditions are expected") {
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t.Fatalf("LongTerm.Text includes aviation content: %q", got.LongTerm.Text)
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}
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}
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func TestParseForecastDiscussionHTMLMissingPreBlock(t *testing.T) {
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_, err := ParseForecastDiscussionHTML("<html><body><div>no pre block</div></body></html>")
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if err == nil {
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t.Fatalf("ParseForecastDiscussionHTML() error = nil, want error")
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}
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if !strings.Contains(err.Error(), "glossaryProduct") {
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t.Fatalf("error = %q, want glossaryProduct context", err)
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}
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}
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func TestParseForecastDiscussionTextMissingIssueTime(t *testing.T) {
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_, err := ParseForecastDiscussionText("National Weather Service Saint Louis MO\n\n.KEY MESSAGES...\n- Test")
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if err == nil {
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t.Fatalf("ParseForecastDiscussionText() error = nil, want error")
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}
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if !strings.Contains(err.Error(), "issue time") {
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t.Fatalf("error = %q, want issue time context", err)
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}
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}
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func loadForecastDiscussionSampleHTML(t *testing.T) string {
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t.Helper()
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path := filepath.Join("testdata", "forecast_discussion_sample.html")
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b, err := os.ReadFile(path)
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if err != nil {
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t.Fatalf("os.ReadFile(%q) error = %v", path, err)
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}
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return string(b)
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}
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func loadMixedFormatForecastDiscussionSampleHTML(t *testing.T) string {
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t.Helper()
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raw := loadForecastDiscussionSampleHTML(t)
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replacements := []struct {
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original string
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replacement string
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}{
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{
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original: ".SHORT TERM... (Through Late Sunday Night)",
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replacement: ".SHORT TERM /Through Late Sunday Night/...",
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},
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{
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original: ".LONG TERM... (Monday through Next Saturday)",
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replacement: ".LONG TERM /Monday through Next Saturday/...",
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},
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{
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original: ".AVIATION... (For the 18z TAFs through 18z Sunday Afternoon)",
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replacement: ".AVIATION /For the 18z TAFs through 18z Sunday Afternoon/...",
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},
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}
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for _, replacement := range replacements {
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if !strings.Contains(raw, replacement.original) {
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t.Fatalf("fixture missing heading %q", replacement.original)
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}
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raw = strings.Replace(raw, replacement.original, replacement.replacement, 1)
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}
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return raw
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}
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