Add database export test

pkg/client/client_test.go

@@ -385,6 +385,7 @@ func TestAll(t *testing.T) {
 	test_HistoryUniqueness(t)
 	test_HistoryError(t)
 	test_ReadOnlyMode(t)
+	test_DumpExport(t)
 
 	teardownClient()
 	teardown()

pkg/client/dump_test.go

@@ -0,0 +1,42 @@
+package client
+
+import (
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func test_DumpExport(t *testing.T) {
+	url := fmt.Sprintf("postgres://%s@%s:%s/%s?sslmode=disable", serverUser, serverHost, serverPort, serverDatabase)
+
+	savePath := "/tmp/dump.sql.gz"
+	os.Remove(savePath)
+
+	saveFile, err := os.Create(savePath)
+	if err != nil {
+		t.Fatal(err.Error())
+	}
+
+	defer func() {
+		saveFile.Close()
+		os.Remove(savePath)
+	}()
+
+	// Test full db dump
+	dump := Dump{}
+	err = dump.Export(url, saveFile)
+	assert.NoError(t, err)
+
+	// Test nonexistent database
+	invalidUrl := fmt.Sprintf("postgres://%s@%s:%s/%s?sslmode=disable", serverUser, serverHost, serverPort, "foobar")
+	err = dump.Export(invalidUrl, saveFile)
+	assert.Contains(t, err.Error(), `database "foobar" does not exist`)
+
+	// Test dump of non existent db
+	dump = Dump{Table: "foobar"}
+	err = dump.Export(url, saveFile)
+	assert.NotNil(t, err)
+	assert.Contains(t, err.Error(), "pg_dump: no matching tables were found")
+}