Add tests to watch.go

This commit adds unit tests for watch.go
As of now part of tests are implemented, I'll add additional tests.

Author: atoato88

go.mod

@@ -9,6 +9,7 @@ require (
 	github.com/go-logr/logr v0.3.0
 	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
 	github.com/prometheus/client_golang v1.7.1
+	github.com/stretchr/testify v1.5.1
 	golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0
 	golang.org/x/tools v0.0.0-20200714190737-9048b464a08d
 	k8s.io/api v0.20.1

go.sum

@@ -475,9 +475,11 @@ github.com/mailru/easyjson v0.7.0 h1:aizVhC/NAAcKWb+5QsU1iNOZb4Yws5UO2I+aIprQITM
 github.com/mailru/easyjson v0.7.0/go.mod h1:KAzv3t3aY1NaHWoQz1+4F1ccyAH66Jk7yos7ldAVICs=
 github.com/matoous/godox v0.0.0-20190911065817-5d6d842e92eb/go.mod h1:1BELzlh859Sh1c6+90blK8lbYy0kwQf1bYlBhBysy1s=
 github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
+github.com/mattn/go-colorable v0.1.4 h1:snbPLB8fVfU9iwbbo30TPtbLRzwWu6aJS6Xh4eaaviA=
 github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
 github.com/mattn/go-isatty v0.0.3/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
+github.com/mattn/go-isatty v0.0.8 h1:HLtExJ+uU2HOZ+wI0Tt5DtUDrx8yhUqDcp7fYERX4CE=
 github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/mattn/go-runewidth v0.0.2/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/mattn/goveralls v0.0.2/go.mod h1:8d1ZMHsd7fW6IRPKQh46F2WRpyib5/X4FOpevwGNQEw=

pkg/patterns/declarative/watch_test.go

@@ -0,0 +1,54 @@
+package declarative
+
+import (
+	"testing"
+
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"sigs.k8s.io/kubebuilder-declarative-pattern/pkg/patterns/declarative/pkg/manifest"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_uniqueGroupVersionKind(t *testing.T) {
+	sa := &unstructured.Unstructured{
+		Object: map[string]interface{}{
+			"apiVersion": "v1",
+			"kind":       "ServiceAccount",
+			"metadata": map[string]interface{}{
+				"name":      "foo-operator",
+				"namespace": "kube-system",
+			},
+		},
+	}
+	saObj, _ := manifest.NewObject(sa)
+
+	tests := []struct {
+		name         string
+		inputObjects *manifest.Objects
+		expectSchema []schema.GroupVersionKind
+	}{
+		{
+			name: "single object",
+			inputObjects: &manifest.Objects{
+				Items: []*manifest.Object{
+					saObj,
+				},
+			},
+			expectSchema: []schema.GroupVersionKind{
+				{
+					Group:   "",
+					Version: "v1",
+					Kind:    "ServiceAccount",
+				},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			actualSchema := uniqueGroupVersionKind(tt.inputObjects)
+			assert.Equal(t, tt.expectSchema, actualSchema)
+		})
+	}
+}