test(data): add tests for data/consumer

ref #57

data/consumer_test.go

@@ -0,0 +1,111 @@
+package data
+
+import (
+	"errors"
+	"reflect"
+	"testing"
+)
+
+func TestConsumer_HandleConsumeSuccess(t *testing.T) {
+	tests := []struct {
+		name          string
+		existingAlert *Alert
+		expectedAlert *Alert
+	}{
+		{"alert nil", nil, nil},
+		{"alert present, not recoverable", &Alert{Recoverable: false}, &Alert{Recoverable: false}},
+		{"alert present, recoverable", &Alert{Recoverable: true}, nil},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			c := NewConsumer()
+			c.Alert = tt.existingAlert
+			c.HandleConsumeSuccess()
+			if !reflect.DeepEqual(c.Alert, tt.expectedAlert) {
+				t.Errorf("unexpected alert state after HandleConsumeSuccess(), want %v, got %v", tt.expectedAlert, c.Alert)
+			}
+		})
+	}
+}
+
+func TestConsumer_HandleConsumeFailure(t *testing.T) {
+	tests := []struct {
+		name   string
+		title  string
+		err    error
+		sample *Sample
+		want   *Alert
+	}{
+		{
+			"basic",
+			"test",
+			errors.New("test"),
+			&Sample{
+				Label: "test",
+				Value: "test",
+				Color: nil,
+			},
+			&Alert{
+				Title:       "TEST",
+				Text:        "test",
+				Color:       nil,
+				Recoverable: true,
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			c := NewConsumer()
+			c.HandleConsumeFailure(tt.title, tt.err, tt.sample)
+			got := <-c.AlertChannel
+			if !reflect.DeepEqual(tt.want, got) {
+				t.Errorf("unexpected alert state after HandleConsumeFailure(), want %v, got %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestNewConsumer(t *testing.T) {
+	tests := []struct {
+		name      string
+		checkFunc func(c *Consumer) bool
+	}{
+		{
+			"initialized after creation",
+			func(c *Consumer) bool {
+				return c != nil
+			},
+		},
+		{
+			"alert is nil after creation",
+			func(c *Consumer) bool {
+				return c.Alert == nil
+			},
+		},
+		{
+			"command channel is initialized after creation",
+			func(c *Consumer) bool {
+				return c.CommandChannel != nil
+			},
+		},
+		{
+			"alert channel is initialized after creation",
+			func(c *Consumer) bool {
+				return c.AlertChannel != nil
+			},
+		},
+		{
+			"sample channel is initialized after creation",
+			func(c *Consumer) bool {
+				return c.SampleChannel != nil
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := NewConsumer(); !tt.checkFunc(got) {
+				t.Errorf("unexpected consumer state after NewConsumer() = %v", got)
+			}
+		})
+	}
+}