remarks_test.go

package main

import (
	"testing"
)

type RemarkTestCase struct {
	RemarkValue    string
	ExpectedResult string
}

func TestParseRemarks(t *testing.T) {
	testCases := []RemarkTestCase{
		RemarkTestCase{"", ""}, //empty remarks should return empty string
		RemarkTestCase{"AO1", "AMOS station"},
		RemarkTestCase{"AO2", "ASOS station"},
		RemarkTestCase{"SLP123", "Sea level pressure 12.3 mb"},
		RemarkTestCase{"WEA:something", "something"},
		RemarkTestCase{"PRESFR", "Pressure falling rapidly"},
		RemarkTestCase{"PRESRR", "Pressure rising rapidly"},
		RemarkTestCase{"10270", "Max temp in 6 hrs:  27.0 °C"},
		RemarkTestCase{"20221", "Min temp in 6 hrs:  22.1 °C"},
		RemarkTestCase{"21221", "Min temp in 6 hrs:  -22.1 °C"},
		RemarkTestCase{"4/012", "Snow coverage:  12.0\""},
		RemarkTestCase{"51021", "Pressure tendency:  -2.1 mb"},
		RemarkTestCase{"60100", "6-hour precipitation:  1.0\""},
		RemarkTestCase{"70510", "24-hour precipitation:  5.1\""},
		RemarkTestCase{"8/l", "Clouds:  Low"},
		RemarkTestCase{"8/m", "Clouds:  Medium"},
		RemarkTestCase{"8/h", "Clouds:  High"},
		RemarkTestCase{"933012", "New snow coverage (water eq.):  12\""},
	}
	for _, testCase := range testCases {
		result := parseRemark(testCase.RemarkValue)
		if result != testCase.ExpectedResult {
			t.Errorf("Invalid remark.  Expected %v, got %v", testCase.ExpectedResult, result)
		}
	}

}