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33 lines
1.1 KiB
Go
33 lines
1.1 KiB
Go
package qerr
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import (
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"go/ast"
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"go/parser"
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"go/token"
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"os"
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"strconv"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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var _ = Describe("error codes", func() {
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// If this test breaks, you should run `go generate ./...`
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It("has a string representation for every error code", func() {
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// We parse the error code file, extract all constants, and verify that
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// each of them has a string version. Go FTW!
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filename := os.Getenv("GOPATH") + "/src/github.com/lucas-clemente/quic-go/qerr/error_codes.go"
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fileAst, err := parser.ParseFile(token.NewFileSet(), filename, nil, 0)
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Expect(err).NotTo(HaveOccurred())
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constSpecs := fileAst.Decls[0].(*ast.GenDecl).Specs
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Expect(len(constSpecs)).To(BeNumerically(">", 4)) // at time of writing
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for _, c := range constSpecs {
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name := c.(*ast.ValueSpec).Names[0].Name
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valString := c.(*ast.ValueSpec).Values[0].(*ast.BasicLit).Value
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val, err := strconv.Atoi(valString)
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Expect(err).NotTo(HaveOccurred())
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Expect(ErrorCode(val).String()).To(Equal(name))
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}
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Expect(ErrorCode(0).String()).To(Equal("ErrorCode(0)"))
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})
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})
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