routes_test.go

Documentation: github.com/linkerd/linkerd2/test/integration/viz/routes

     1  package get
     2  
     3  import (
     4  	"fmt"
     5  	"os"
     6  	"strings"
     7  	"testing"
     8  
     9  	"github.com/linkerd/linkerd2/testutil"
    10  )
    11  
    12  //////////////////////
    13  ///   TEST SETUP   ///
    14  //////////////////////
    15  
    16  var TestHelper *testutil.TestHelper
    17  
    18  func TestMain(m *testing.M) {
    19  	TestHelper = testutil.NewTestHelper()
    20  	// Block test execution until viz extension is running
    21  	TestHelper.WaitUntilDeployReady(testutil.LinkerdVizDeployReplicas)
    22  	os.Exit(m.Run())
    23  }
    24  
    25  type testCase struct {
    26  	s string
    27  	c int
    28  }
    29  
    30  //////////////////////
    31  /// TEST EXECUTION ///
    32  //////////////////////
    33  
    34  // TestRoutes exercises the "linkerd routes" command, validating the
    35  // installation and output of ServiceProfiles for both the control-plane and
    36  // smoke test.
    37  func TestRoutes(t *testing.T) {
    38  	// control-plane routes
    39  	cmd := []string{"viz", "routes", "--namespace", TestHelper.GetLinkerdNamespace(), "deploy"}
    40  	out, err := TestHelper.LinkerdRun(cmd...)
    41  	if err != nil {
    42  		testutil.AnnotatedFatal(t, "'linkerd routes' command failed", err)
    43  	}
    44  
    45  	routeStrings := []testCase{
    46  		{"linkerd-destination", 1},
    47  		{"linkerd-identity", 3},
    48  		{"linkerd-proxy-injector", 2},
    49  	}
    50  
    51  	for _, r := range routeStrings {
    52  		count := strings.Count(out, r.s)
    53  		if count != r.c {
    54  			testutil.AnnotatedFatalf(t, fmt.Sprintf("expected %d occurrences of \"%s\", got %d", r.c, r.s, count),
    55  				"expected %d occurrences of \"%s\", got %d\n%s", r.c, r.s, count, out)
    56  		}
    57  	}
    58  
    59  	// viz routes
    60  	cmd = []string{"viz", "routes", "--namespace", TestHelper.GetVizNamespace(), "deploy"}
    61  	out, err = TestHelper.LinkerdRun(cmd...)
    62  	if err != nil {
    63  		testutil.AnnotatedFatal(t, "'linkerd routes' command failed", err)
    64  	}
    65  
    66  	vizRouteStrings := []testCase{
    67  		{"metrics-api", 9},
    68  		{"tap", 4},
    69  		{"tap-injector", 2},
    70  		{"web", 2},
    71  	}
    72  
    73  	if !TestHelper.ExternalPrometheus() {
    74  		vizRouteStrings = append(vizRouteStrings, testCase{
    75  			"prometheus",
    76  			5,
    77  		})
    78  	}
    79  	for _, r := range vizRouteStrings {
    80  		count := strings.Count(out, r.s)
    81  		if count != r.c {
    82  			testutil.AnnotatedFatalf(t, fmt.Sprintf("expected %d occurrences of \"%s\", got %d", r.c, r.s, count),
    83  				"expected %d occurrences of \"%s\", got %d\n%s", r.c, r.s, count, out)
    84  		}
    85  	}
    86  }
    87
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