go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/casviewer/client_test.go (about)

     1  // Copyright 2020 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package casviewer
    16  
    17  import (
    18  	"context"
    19  	"net/http"
    20  	"testing"
    21  
    22  	. "github.com/smartystreets/goconvey/convey"
    23  
    24  	"go.chromium.org/luci/server/auth/authtest"
    25  	"go.chromium.org/luci/server/router"
    26  )
    27  
    28  func TestClient(t *testing.T) {
    29  	t.Parallel()
    30  
    31  	Convey("ClientCache", t, func() {
    32  		Convey("Get", func() {
    33  			c := newContext()
    34  			inst1 := "projects/test-proj/instances/inst1"
    35  			inst2 := "projects/test-proj/instances/inst2"
    36  
    37  			// First time, it creates a new client.
    38  			cl1, err := GetClient(c.Request.Context(), inst1)
    39  			So(err, ShouldBeNil)
    40  			So(cl1, ShouldNotBeNil)
    41  
    42  			// The client should be reused for the same instance.
    43  			cl2, err := GetClient(c.Request.Context(), inst1)
    44  			So(err, ShouldBeNil)
    45  			So(cl2, ShouldEqual, cl1)
    46  
    47  			// A new client for a different instance will be created.
    48  			cl3, err := GetClient(c.Request.Context(), inst2)
    49  			So(err, ShouldBeNil)
    50  			So(cl3, ShouldNotBeNil)
    51  			So(cl3, ShouldNotPointTo, cl1)
    52  		})
    53  
    54  		Convey("Clear", func() {
    55  			c := newContext()
    56  			inst1 := "projects/test-proj/instances/inst1"
    57  			inst2 := "projects/test-proj/instances/inst2"
    58  
    59  			// Create clients.
    60  			var err error
    61  			_, err = GetClient(c.Request.Context(), inst1)
    62  			So(err, ShouldBeNil)
    63  			_, err = GetClient(c.Request.Context(), inst2)
    64  			So(err, ShouldBeNil)
    65  
    66  			cc, err := clientCache(c.Request.Context())
    67  			So(err, ShouldBeNil)
    68  			cc.Clear()
    69  
    70  			So(cc.clients, ShouldBeEmpty)
    71  		})
    72  	})
    73  }
    74  
    75  // newContext creats a fake context.
    76  func newContext() *router.Context {
    77  	cc := NewClientCache(context.Background())
    78  
    79  	ctx := context.Background()
    80  	ctx = authtest.MockAuthConfig(ctx)
    81  	c := &router.Context{
    82  		Request: (&http.Request{}).WithContext(ctx),
    83  	}
    84  	withClientCacheMW(cc)(c, func(_ *router.Context) {})
    85  	return c
    86  }