Files
weatherreporter/internal/generatedtext/today_test.go

112 lines
3.7 KiB
Go

package generatedtext
import (
"strings"
"testing"
)
func TestValidateTodayNormalizesJSON(t *testing.T) {
value, normalized, err := ValidateToday([]byte(`{
"summary": " Showers are likely today. ",
"forecast_discussion": [
" A front will keep rain chances elevated. ",
"",
" Temperatures stay mild through the afternoon. "
],
"precipitation_timing": " Rain is most likely during the afternoon. ",
"confidence": " Medium "
}`))
if err != nil {
t.Fatalf("ValidateToday() error = %v", err)
}
if value.Summary != "Showers are likely today." {
t.Fatalf("Summary = %q, want trimmed summary", value.Summary)
}
if strings.Join(value.ForecastDiscussion, "|") != "A front will keep rain chances elevated.|Temperatures stay mild through the afternoon." {
t.Fatalf("ForecastDiscussion = %#v, want trimmed non-empty paragraphs", value.ForecastDiscussion)
}
if value.PrecipitationTiming != "Rain is most likely during the afternoon." {
t.Fatalf("PrecipitationTiming = %q, want trimmed precipitation timing", value.PrecipitationTiming)
}
want := `{"summary":"Showers are likely today.","forecast_discussion":["A front will keep rain chances elevated.","Temperatures stay mild through the afternoon."],"precipitation_timing":"Rain is most likely during the afternoon.","confidence":"Medium"}`
if string(normalized) != want {
t.Fatalf("normalized = %s, want %s", normalized, want)
}
}
func TestValidateTodayOmitsEmptyOptionalFields(t *testing.T) {
_, normalized, err := ValidateToday([]byte(`{
"summary": "Showers are likely today.",
"forecast_discussion": ["A front will keep rain chances elevated."],
"precipitation_timing": " ",
"confidence": " "
}`))
if err != nil {
t.Fatalf("ValidateToday() error = %v", err)
}
want := `{"summary":"Showers are likely today.","forecast_discussion":["A front will keep rain chances elevated."]}`
if string(normalized) != want {
t.Fatalf("normalized = %s, want %s", normalized, want)
}
}
func TestValidateTodayRejectsInvalidInput(t *testing.T) {
tests := []struct {
name string
in string
want string
}{
{
name: "malformed",
in: `{`,
want: "decode today generated text",
},
{
name: "unknown field",
in: `{"summary":"Showers are likely today.","forecast_discussion":["A front will keep rain chances elevated."],"extra":"value"}`,
want: `unknown field "extra"`,
},
{
name: "missing summary",
in: `{"forecast_discussion":["A front will keep rain chances elevated."]}`,
want: "summary is required",
},
{
name: "blank summary",
in: `{"summary":" ","forecast_discussion":["A front will keep rain chances elevated."]}`,
want: "summary is required",
},
{
name: "missing forecast discussion",
in: `{"summary":"Showers are likely today."}`,
want: "forecast discussion is required",
},
{
name: "blank forecast discussion",
in: `{"summary":"Showers are likely today.","forecast_discussion":[" ",""]}`,
want: "forecast discussion is required",
},
{
name: "forecast discussion wrong type",
in: `{"summary":"Showers are likely today.","forecast_discussion":"A front will keep rain chances elevated."}`,
want: "cannot unmarshal string",
},
{
name: "multiple values",
in: `{"summary":"Showers are likely today.","forecast_discussion":["A front will keep rain chances elevated."]} {}`,
want: "multiple JSON values",
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
_, _, err := ValidateToday([]byte(test.in))
if err == nil {
t.Fatal("ValidateToday() error = nil, want error")
}
if !strings.Contains(err.Error(), test.want) {
t.Fatalf("ValidateToday() error = %v, want %q", err, test.want)
}
})
}
}