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gga_test.go
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gga_test.go
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package nmea_test
import (
. "github.com/munnik/go-nmea"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/gstruct"
)
var _ = Describe("GGA", func() {
var (
sentence Sentence
parsed GGA
err error
raw string
)
Describe("Parsing", func() {
JustBeforeEach(func() {
sentence, err = Parse(raw)
if sentence != nil {
parsed = sentence.(GGA)
} else {
parsed = GGA{}
}
})
Context("a valid sentence", func() {
BeforeEach(func() {
raw = "$GNGGA,203415.000,6325.6138,N,01021.4290,E,1,8,2.42,72.5,M,41.5,M,,*7C"
})
It("returns no errors", func() {
Expect(err).NotTo(HaveOccurred())
})
It("equals a valid GGA struct", func() {
Expect(parsed).To(MatchFields(IgnoreExtras, Fields{
"Time": Equal(NewTime(20, 34, 15, 0)),
"Latitude": Equal(NewFloat64(63.42689666666667)),
"Longitude": Equal(NewFloat64(10.357149999999999)),
"FixQuality": Equal(NewString("1")),
"NumSatellites": Equal(NewInt64(8)),
"HDOP": Equal(NewFloat64(2.42)),
"Altitude": Equal(NewFloat64(72.5)),
"Separation": Equal(NewFloat64(41.5)),
"DGPSAge": Equal(NewString("")),
"DGPSId": Equal(NewString("")),
}))
})
})
Context("a sentence with a bad latitude", func() {
BeforeEach(func() {
raw = "$GNGGA,034225.077,A,S,15124.5567,E,1,03,9.7,-25.0,M,21.0,M,,0000*24"
})
Specify("no error is returned", func() {
Expect(err).NotTo(HaveOccurred())
})
It("equals a valid GGA struct", func() {
Expect(parsed).To(MatchFields(IgnoreExtras, Fields{
"Time": Equal(NewTime(3, 42, 25, 77)),
"Latitude": Equal(NewInvalidFloat64("parse error (not decimal coordinate)")),
"Longitude": Equal(NewFloat64(151.40927833333333)),
"FixQuality": Equal(NewString("1")),
"NumSatellites": Equal(NewInt64(3)),
"HDOP": Equal(NewFloat64(9.7)),
"Altitude": Equal(NewFloat64(-25)),
"Separation": Equal(NewFloat64(21)),
"DGPSAge": Equal(NewString("")),
"DGPSId": Equal(NewString("0000")),
}))
})
})
Context("a sentence with a bad longitude", func() {
BeforeEach(func() {
raw = "$GNGGA,034225.077,3356.4650,S,A,E,1,03,9.7,-25.0,M,21.0,M,,0000*12"
})
Specify("no error is returned", func() {
Expect(err).NotTo(HaveOccurred())
})
It("equals a valid GGA struct", func() {
Expect(parsed).To(MatchFields(IgnoreExtras, Fields{
"Time": Equal(NewTime(3, 42, 25, 77)),
"Latitude": Equal(NewFloat64(-33.94108333333334)),
"Longitude": Equal(NewInvalidFloat64("parse error (not decimal coordinate)")),
"FixQuality": Equal(NewString("1")),
"NumSatellites": Equal(NewInt64(3)),
"HDOP": Equal(NewFloat64(9.7)),
"Altitude": Equal(NewFloat64(-25)),
"Separation": Equal(NewFloat64(21)),
"DGPSAge": Equal(NewString("")),
"DGPSId": Equal(NewString("0000")),
}))
})
})
Context("a sentence with a bad fix quality", func() {
BeforeEach(func() {
raw = "$GNGGA,034225.077,3356.4650,S,15124.5567,E,12,03,9.7,-25.0,M,21.0,M,,0000*7D"
})
Specify("no error is returned", func() {
Expect(err).NotTo(HaveOccurred())
})
It("equals a valid GGA struct", func() {
Expect(parsed).To(MatchFields(IgnoreExtras, Fields{
"Time": Equal(NewTime(3, 42, 25, 77)),
"Latitude": Equal(NewFloat64(-33.94108333333334)),
"Longitude": Equal(NewFloat64(151.40927833333333)),
"FixQuality": Equal(NewInvalidString("not a valid option")),
"NumSatellites": Equal(NewInt64(3)),
"HDOP": Equal(NewFloat64(9.7)),
"Altitude": Equal(NewFloat64(-25)),
"Separation": Equal(NewFloat64(21)),
"DGPSAge": Equal(NewString("")),
"DGPSId": Equal(NewString("0000")),
}))
})
})
Context("a sentence with a bad checksum", func() {
BeforeEach(func() {
raw = "$SDGGA,0.5,0.5,*AA"
})
It("returns an error", func() {
Expect(err).To(MatchError("nmea: sentence checksum mismatch [7A != AA]"))
})
})
})
Describe("Getting data from a GGA struct", func() {
BeforeEach(func() {
parsed = GGA{
Time: Time{},
Latitude: NewFloat64(Latitude),
Longitude: NewFloat64(Longitude),
FixQuality: NewString(DGPS),
NumSatellites: NewInt64(Satellites),
HDOP: NewInvalidFloat64(""),
Altitude: NewFloat64(Altitude),
Separation: NewInvalidFloat64(""),
DGPSAge: NewString(""),
DGPSId: NewString(""),
}
})
Context("when having a complete struct", func() {
It("returns a valid position", func() {
lat, lon, alt, _ := parsed.GetPosition3D()
Expect(lat).To(Equal(Latitude))
Expect(lon).To(Equal(Longitude))
Expect(alt).To(Equal(Altitude))
})
It("returns a valid number of satellites", func() {
Expect(parsed.GetNumberOfSatellites()).To(Equal(Satellites))
})
It("returns a valid fix quality", func() {
Expect(parsed.GetFixQuality()).To(Equal(DGPS))
})
})
Context("when having a struct with a bad fix", func() {
JustBeforeEach(func() {
parsed.FixQuality = NewString(Invalid)
})
It("returns an error", func() {
_, _, _, err := parsed.GetPosition3D()
Expect(err).To(HaveOccurred())
})
It("returns a valid number of satellites", func() {
Expect(parsed.GetNumberOfSatellites()).To(Equal(Satellites))
})
It("returns a valid fix quality", func() {
Expect(parsed.GetFixQuality()).To(Equal(Invalid))
})
})
Context("when having a struct with missing longitude", func() {
JustBeforeEach(func() {
parsed.Longitude = NewInvalidFloat64("")
})
It("returns an error", func() {
_, _, _, err := parsed.GetPosition3D()
Expect(err).To(HaveOccurred())
})
It("returns a valid number of satellites", func() {
Expect(parsed.GetNumberOfSatellites()).To(Equal(Satellites))
})
It("returns a valid fix quality", func() {
Expect(parsed.GetFixQuality()).To(Equal(DGPS))
})
})
Context("when having a struct with missing latitude", func() {
JustBeforeEach(func() {
parsed.Latitude = NewInvalidFloat64("")
})
It("returns an error", func() {
_, _, _, err := parsed.GetPosition3D()
Expect(err).To(HaveOccurred())
})
It("returns a valid number of satellites", func() {
Expect(parsed.GetNumberOfSatellites()).To(Equal(Satellites))
})
It("returns a valid fix quality", func() {
Expect(parsed.GetFixQuality()).To(Equal(DGPS))
})
})
Context("when having a struct with missing altitude", func() {
JustBeforeEach(func() {
parsed.Altitude = NewInvalidFloat64("")
})
It("returns an error", func() {
_, _, _, err := parsed.GetPosition3D()
Expect(err).To(HaveOccurred())
})
It("returns a valid number of satellites", func() {
Expect(parsed.GetNumberOfSatellites()).To(Equal(Satellites))
})
It("returns a valid fix quality", func() {
Expect(parsed.GetFixQuality()).To(Equal(DGPS))
})
})
Context("when having a struct with missing number of satellites and fix quality", func() {
JustBeforeEach(func() {
parsed.NumSatellites = NewInvalidInt64("")
parsed.FixQuality = NewInvalidString("")
})
It("returns an error", func() {
_, _, _, err := parsed.GetPosition3D()
Expect(err).To(HaveOccurred())
})
It("returns an error", func() {
_, err := parsed.GetNumberOfSatellites()
Expect(err).To(HaveOccurred())
})
It("returns an error", func() {
_, err := parsed.GetFixQuality()
Expect(err).To(HaveOccurred())
})
})
})
})