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parse_test.go
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parse_test.go
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package route
import (
"net/http"
"testing"
"github.com/stretchr/testify/assert"
)
func TestParseAndMatchSuccess(t *testing.T) {
testCases := []struct {
Expression string
Url string
Method string
Host string
Headers http.Header
}{
// Trie cases
{
Expression: `Path("/helloworld")`,
Url: `http://google.com/helloworld`,
Method: http.MethodGet,
Host: "localhost",
},
{
Expression: `Method("GET") && Path("/helloworld")`,
Url: `http://google.com/helloworld`,
Method: http.MethodGet,
Host: "localhost",
},
{
Expression: `Path("/hello/<world>")`,
Url: `http://google.com/hello/world`,
Method: http.MethodGet,
Host: "localhost",
},
{
Expression: `Method("POST") && Path("/helloworld%2F")`,
Url: `http://google.com/helloworld%2F`,
Method: http.MethodPost,
Host: "localhost",
},
{
Expression: `Method("POST") && Path("/helloworld%2F")`,
Url: `http://google.com/helloworld%2F?q=b`,
Method: http.MethodPost,
Host: "localhost",
},
{
Expression: `Method("POST") && Path("/helloworld/<name>")`,
Url: `http://google.com/helloworld/%2F`,
Method: http.MethodPost,
Host: "localhost",
},
{
Expression: `Method("POST") && Path("/helloworld/<path:name>")`,
Url: `http://google.com/helloworld/some/name`,
Method: http.MethodPost,
Host: "localhost",
},
{
Expression: `Method("POST") && Path("/escaped/<path:name>")`,
Url: `http://google.com/escaped/some%2Fpath`,
Method: http.MethodPost,
Host: "localhost",
},
{
Expression: `Path("/helloworld")`,
Url: `http://google.com/helloworld`,
Method: http.MethodGet,
Host: "localhost",
},
{
Expression: `Method("POST") && Path("/helloworld")`,
Url: `http://google.com/helloworld`,
Method: http.MethodPost,
Host: "localhost",
},
{
Expression: `Host("localhost") && Method("POST") && Path("/helloworld")`,
Url: `http://google.com/helloworld`,
Method: http.MethodPost,
Host: "localhost",
},
{
Expression: `Host("<subdomain>.localhost") && Method("POST") && Path("/helloworld")`,
Url: `http://google.com/helloworld`,
Method: http.MethodPost,
Host: "a.localhost",
},
{
Expression: `Host("<sub1>.<sub2>.localhost") && Method("POST") && Path("/helloworld")`,
Url: `http://google.com/helloworld`,
Method: http.MethodPost,
Host: "a.b.localhost",
},
{
Expression: `Host("<sub1>.<sub2>.localhost") && Method("POST") && Path("/helloworld")`,
Url: `http://google.com/helloworld`,
Method: http.MethodPost,
Host: "a.b.localhost",
},
{
Expression: `Header("Content-Type", "application/json")`,
Url: `http://google.com/helloworld`,
Method: http.MethodPost,
Headers: map[string][]string{"Content-Type": {"application/json"}},
},
{
Expression: `Header("Content-Type", "application/<string>")`,
Url: `http://google.com/helloworld`,
Method: http.MethodPost,
Headers: map[string][]string{"Content-Type": {"application/json"}},
},
{
Expression: `Host("<sub1>.<sub2>.localhost") && Method("POST") && Path("/helloworld") && Header("Content-Type", "application/<string>")`,
Url: `http://google.com/helloworld`,
Method: http.MethodPost,
Host: "a.b.localhost",
Headers: map[string][]string{"Content-Type": {"application/json"}},
},
// Regexp cases
{
Expression: `PathRegexp("/helloworld")`,
Url: `http://google.com/helloworld`,
Method: http.MethodGet,
Host: "localhost",
},
{
Expression: `HostRegexp("[^\\.]+\\.localhost") && Method("POST") && PathRegexp("/hello.*")`,
Url: `http://google.com/helloworld`,
Method: http.MethodPost,
Host: "a.localhost",
},
{
Expression: `HostRegexp("[^\\.]+\\.localhost") && Method("POST") && PathRegexp("/hello.*") && HeaderRegexp("Content-Type", "application/.+")`,
Url: `http://google.com/helloworld`,
Method: http.MethodPost,
Host: "a.b.localhost",
Headers: map[string][]string{"Content-Type": {"application/json"}},
},
}
for _, tc := range testCases {
t.Run(tc.Expression, func(t *testing.T) {
result := &match{val: "ok"}
p, err := parse(tc.Expression, result)
assert.NoError(t, err)
assert.NotNil(t, p)
req := makeReq(req{url: tc.Url})
req.Method = tc.Method
req.Host = tc.Host
req.Header = tc.Headers
out := p.match(req)
assert.NotNil(t, p)
assert.Equal(t, result, out)
})
}
}
func TestParseFailures(t *testing.T) {
testCases := []struct {
desc string
expr string
}{
{
desc: "unsupported identifier",
expr: `bad`,
},
{
desc: "not a valid go expression",
expr: `bad expression`,
},
{
desc: "unsupported operator",
expr: `Path("/path") || Path("/path2")`,
},
{
desc: "unsupported statements",
expr: `1 && 2`,
},
{
desc: "standalone literal",
expr: `"standalone literal"`,
},
{
desc: "unknown function",
expr: `UnknownFunction("hi")`,
},
{
desc: "bad argument type",
expr: `Path(1)`,
},
{
desc: "bad argument type",
expr: `RegexpRoute(1)`,
},
{
desc: "no arguments",
expr: `Path()`,
},
{
desc: "no arguments",
expr: `PathRegexp()`,
},
{
desc: "nested calls",
expr: `Path(Path("hello"))`,
},
{
desc: "bad trie expression",
expr: `Path("")`,
},
{
desc: "bad regular expression",
expr: `PathRegexp("[[[[")`,
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
m, err := parse(test.expr, &match{val: "ok"})
assert.Error(t, err)
assert.Nil(t, m)
})
}
}