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checksum_test.go
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checksum_test.go
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package nmea_test
import (
. "github.com/munnik/go-nmea"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
)
var _ = Describe("Checksum", func() {
var (
sentence Sentence
err error
raw string
)
Describe("Parsing without options", func() {
JustBeforeEach(func() {
sentence, err = Parse(raw)
})
Context("a valid sentence", func() {
BeforeEach(func() {
raw = "$23DBS,01.9,f,0.58,M,00.3,F*21"
})
It("returns no errors", func() {
Expect(err).NotTo(HaveOccurred())
})
It("returns not nil", func() {
Expect(sentence).NotTo(BeNil())
})
})
Context("a sentence with a bad checksum", func() {
BeforeEach(func() {
raw = "$23DBS,01.9,f,0.58,M,00.3,F*25"
})
It("returns an error", func() {
Expect(err).To(MatchError("nmea: sentence checksum mismatch [21 != 25]"))
})
It("returns nil", func() {
Expect(sentence).To(BeNil())
})
})
Context("a sentence with an empty checksum", func() {
BeforeEach(func() {
raw = "$23RSA,-028.8,A,-028.8,A*"
})
It("returns an error", func() {
Expect(err).To(MatchError("nmea: sentence checksum mismatch [41 != ]"))
})
It("returns nil", func() {
Expect(sentence).To(BeNil())
})
})
})
Describe("Parsing with AllowEmptyChecksum", func() {
JustBeforeEach(func() {
sentence, err = Parse(raw, "AllowEmptyChecksum")
})
Context("a valid sentence", func() {
BeforeEach(func() {
raw = "$23DBS,01.9,f,0.58,M,00.3,F*21"
})
It("returns no errors", func() {
Expect(err).NotTo(HaveOccurred())
})
It("returns not nil", func() {
Expect(sentence).NotTo(BeNil())
})
})
Context("a sentence with a bad checksum", func() {
BeforeEach(func() {
raw = "$23DBS,01.9,f,0.58,M,00.3,F*25"
})
It("returns an error", func() {
Expect(err).To(MatchError("nmea: sentence checksum mismatch [21 != 25]"))
})
It("returns nil", func() {
Expect(sentence).To(BeNil())
})
})
Context("a sentence with an empty checksum", func() {
BeforeEach(func() {
raw = "$23RSA,-028.8,A,-028.8,A*"
})
It("returns no errors", func() {
Expect(err).NotTo(HaveOccurred())
})
It("returns not nil", func() {
Expect(sentence).NotTo(BeNil())
})
})
})
Describe("Parsing with AllowChecksumMismatch", func() {
JustBeforeEach(func() {
sentence, err = Parse(raw, "AllowChecksumMismatch")
})
Context("a valid sentence", func() {
BeforeEach(func() {
raw = "$23DBS,01.9,f,0.58,M,00.3,F*21"
})
It("returns no errors", func() {
Expect(err).NotTo(HaveOccurred())
})
It("returns not nil", func() {
Expect(sentence).NotTo(BeNil())
})
})
Context("a sentence with a bad checksum", func() {
BeforeEach(func() {
raw = "$23DBS,01.9,f,0.58,M,00.3,F*25"
})
It("returns no errors", func() {
Expect(err).NotTo(HaveOccurred())
})
It("returns not nil", func() {
Expect(sentence).NotTo(BeNil())
})
})
Context("a sentence with an empty checksum", func() {
BeforeEach(func() {
raw = "$23RSA,-028.8,A,-028.8,A*"
})
It("returns an error", func() {
Expect(err).To(MatchError("nmea: sentence checksum mismatch [41 != ]"))
})
It("returns nil", func() {
Expect(sentence).To(BeNil())
})
})
})
Describe("Parsing with AllowEmptyChecksum and AllowChecksumMismatch", func() {
JustBeforeEach(func() {
sentence, err = Parse(raw, "AllowEmptyChecksum", "AllowChecksumMismatch")
})
Context("a valid sentence", func() {
BeforeEach(func() {
raw = "$23DBS,01.9,f,0.58,M,00.3,F*21"
})
It("returns no errors", func() {
Expect(err).NotTo(HaveOccurred())
})
It("returns not nil", func() {
Expect(sentence).NotTo(BeNil())
})
})
Context("a sentence with a bad checksum", func() {
BeforeEach(func() {
raw = "$23DBS,01.9,f,0.58,M,00.3,F*25"
})
It("returns no errors", func() {
Expect(err).NotTo(HaveOccurred())
})
It("returns not nil", func() {
Expect(sentence).NotTo(BeNil())
})
})
Context("a sentence with an empty checksum", func() {
BeforeEach(func() {
raw = "$23RSA,-028.8,A,-028.8,A*"
})
It("returns no errors", func() {
Expect(err).NotTo(HaveOccurred())
})
It("returns not nil", func() {
Expect(sentence).NotTo(BeNil())
})
})
})
})