use an exact number for search integration test (#864)

Author: chriskim06

integration_test/search_test.go

@@ -19,6 +19,8 @@ import (
 	"sort"
 	"strings"
 	"testing"
+
+	"sigs.k8s.io/krew/pkg/constants"
 )
 
 func TestKrewSearchAll(t *testing.T) {
@@ -27,9 +29,10 @@ func TestKrewSearchAll(t *testing.T) {
 	test := NewTest(t)
 
 	output := test.WithDefaultIndex().Krew("search").RunOrFailOutput()
-	if plugins := lines(output); len(plugins) < 10 {
+	availablePlugins := test.IndexPluginCount(constants.DefaultIndexName)
+	if plugins := lines(output); len(plugins)-1 != availablePlugins {
 		// the first line is the header
-		t.Errorf("Expected at least %d plugins", len(plugins)-1)
+		t.Errorf("Expected %d plugins, got %d", availablePlugins, len(plugins)-1)
 	}
 }
 

integration_test/testutil_test.go

@@ -194,6 +194,21 @@ func (it *ITest) WithCustomIndexFromDefault(name string) *ITest {
 	return it
 }
 
+// IndexPluginCount returns the number of plugins available in a given index.
+func (it *ITest) IndexPluginCount(name string) int {
+	indexPath := environment.NewPaths(it.Root()).IndexPluginsPath(name)
+	indexDir, err := os.Open(indexPath)
+	if err != nil {
+		it.t.Fatal(err)
+	}
+	defer indexDir.Close()
+	plugins, err := indexDir.Readdirnames(-1)
+	if err != nil {
+		it.t.Fatal(err)
+	}
+	return len(plugins)
+}
+
 // WithEnv sets an environment variable for the krew run.
 func (it *ITest) WithEnv(key string, value interface{}) *ITest {
 	if key == "KREW_ROOT" {