add some unit tests for pkg/api (#4994)

Signed-off-by: qiuming520 <qiuming_yewu@cmss.chinamobile.com>

pkg/api/logging/v1alpha2/types_test.go

@@ -0,0 +1,77 @@
+package v1alpha2
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+	"time"
+
+	"github.com/emicklei/go-restful"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestParseQueryParameter(t *testing.T) {
+	// default operation -- query
+	defaultParam := "namespaces=default,my-ns,my-test&namespace_query=default,my&workloads=my-wl,demo-wl&workload_query=wl&pods=my-po,demo-po&pod_query=po&containers=my-cont,demo-cont&container_query=cont&log_query=ERR&start_time=1136214245&end_time=1136214245&from=0&sort=desc"
+	req, err := http.NewRequest("GET", fmt.Sprintf("http://localhost/tenant.kubesphere.io/v2alpha1/logs?%s", defaultParam), nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	expected := Query{
+		Operation:       OperationQuery,
+		NamespaceFilter: "default,my-ns,my-test",
+		NamespaceSearch: "default,my",
+		WorkloadFilter:  "my-wl,demo-wl",
+		WorkloadSearch:  "wl",
+		PodFilter:       "my-po,demo-po",
+		PodSearch:       "po",
+		ContainerFilter: "my-cont,demo-cont",
+		ContainerSearch: "cont",
+		LogSearch:       "ERR",
+
+		StartTime: time.Unix(1136214245, 0),
+		EndTime:   time.Unix(1136214245, 0),
+
+		Sort: OrderDescending,
+		From: int64(0),
+		Size: int64(10),
+	}
+
+	request := restful.NewRequest(req)
+	actual, err := ParseQueryParameter(request)
+	assert.NoError(t, err)
+	assert.Equal(t, &expected, actual)
+
+	// histogram operation
+	queryParamInterval := "operation=histogram&interval=15m&" + defaultParam
+	reqInterval, err := http.NewRequest("GET", fmt.Sprintf("http://localhost/tenant.kubesphere.io/v2alpha1/logs?%s", queryParamInterval), nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	expected = Query{
+		Operation:       OperationHistogram,
+		NamespaceFilter: "default,my-ns,my-test",
+		NamespaceSearch: "default,my",
+		WorkloadFilter:  "my-wl,demo-wl",
+		WorkloadSearch:  "wl",
+		PodFilter:       "my-po,demo-po",
+		PodSearch:       "po",
+		ContainerFilter: "my-cont,demo-cont",
+		ContainerSearch: "cont",
+		LogSearch:       "ERR",
+
+		StartTime: time.Unix(1136214245, 0),
+		EndTime:   time.Unix(1136214245, 0),
+
+		Interval: DefaultInterval,
+		From:     int64(0),
+		Size:     int64(0),
+	}
+
+	requestInterval := restful.NewRequest(reqInterval)
+	actual, err = ParseQueryParameter(requestInterval)
+	assert.NoError(t, err)
+	assert.Equal(t, &expected, actual)
+}