match_test.go

Documentation: goji.io/pat

     1  package pat
     2  
     3  import (
     4  	"context"
     5  	"net/http"
     6  	"reflect"
     7  	"testing"
     8  
     9  	"goji.io/pattern"
    10  )
    11  
    12  func TestExistingContext(t *testing.T) {
    13  	t.Parallel()
    14  
    15  	pat := New("/hi/:c/:a/:r/:l")
    16  	req, err := http.NewRequest("GET", "/hi/foo/bar/baz/quux", nil)
    17  	if err != nil {
    18  		panic(err)
    19  	}
    20  	ctx := context.Background()
    21  	ctx = pattern.SetPath(ctx, req.URL.EscapedPath())
    22  	ctx = context.WithValue(ctx, pattern.AllVariables, map[pattern.Variable]interface{}{
    23  		"hello": "world",
    24  		"c":     "nope",
    25  	})
    26  	ctx = context.WithValue(ctx, pattern.Variable("user"), "carl")
    27  
    28  	req = req.WithContext(ctx)
    29  	req = pat.Match(req)
    30  	if req == nil {
    31  		t.Fatalf("expected pattern to match")
    32  	}
    33  	ctx = req.Context()
    34  
    35  	expected := map[pattern.Variable]interface{}{
    36  		"c": "foo",
    37  		"a": "bar",
    38  		"r": "baz",
    39  		"l": "quux",
    40  	}
    41  	for k, v := range expected {
    42  		if p := Param(req, string(k)); p != v {
    43  			t.Errorf("expected %s=%q, got %q", k, v, p)
    44  		}
    45  	}
    46  
    47  	expected["hello"] = "world"
    48  	all := ctx.Value(pattern.AllVariables).(map[pattern.Variable]interface{})
    49  	if !reflect.DeepEqual(all, expected) {
    50  		t.Errorf("expected %v, got %v", expected, all)
    51  	}
    52  
    53  	if path := pattern.Path(ctx); path != "" {
    54  		t.Errorf("expected path=%q, got %q", "", path)
    55  	}
    56  
    57  	if user := ctx.Value(pattern.Variable("user")); user != "carl" {
    58  		t.Errorf("expected user=%q, got %q", "carl", user)
    59  	}
    60  }
    61
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