Add tests for paginated routes

routes_test.go

@@ -10,6 +10,15 @@ import (
 	"strings"
 )
 
+// Define some custom types to make response parsing easier
+type SearchResponse struct {
+	SpotifyID string
+	Name string
+	Popularity int
+	Genres []string
+}
+type SearchResponseList []SearchResponse
+
 func TestAlive(t *testing.T) {
 	db := setupTestDatabase("testalive")
 	env := &Env{db: db}
@@ -84,14 +93,7 @@ func TestGetArtistByName(t *testing.T) {
 
 	assert.Equal(t, 200, w.Code)
 
-	// Define some custom types to make response parsing easier
-	type SearchResponse struct {
-		SpotifyID string
-		Name string
-	}
-	type ResponseList []SearchResponse
-
-	var resp ResponseList
+	var resp SearchResponseList
 	err := json.NewDecoder(w.Body).Decode(&resp)
 	if err != nil {
 		assert.Fail(t, fmt.Sprintf("Could not validate and parse JSON response: %s", err.Error()))
@@ -176,3 +178,73 @@ func TestCreateGenres(t *testing.T) {
 
 	assert.Equal(t, "testgenre", genre.Name)
 }
+
+func TestGetPaginatedGenres(t *testing.T) {
+	db := setupTestDatabase("testgetpaginatedgenres")
+	env := &Env{db: db}
+	router := setupRouter(env, spotifyClientID, spotifyClientSecret)
+
+	// Create a large list of fake genres to test paging
+	var testData []Genre
+	for i := 0; i < 100; i++ {
+		testData = append(testData, Genre{Name: fmt.Sprintf("test%d", i)})
+	}
+
+	dbResult := env.db.Create(&testData)
+	if dbResult.Error != nil {
+		assert.Fail(t, "Failed to save test into info into database")
+	}
+
+	w := httptest.NewRecorder()
+	req, _ := http.NewRequest("GET", "/genres?page=3&page_size=12", nil)
+	router.ServeHTTP(w, req)
+
+	assert.Equal(t, 200, w.Code)
+	assert.Equal(t, `["test24","test25","test26","test27","test28","test29","test30","test31","test32","test33","test34","test35"]`, w.Body.String())
+}
+
+func TestGetPaginatedArtistByName(t *testing.T) {
+	db := setupTestDatabase("testgetpaginatedartistbyname")
+	env := &Env{db: db}
+	router := setupRouter(env, spotifyClientID, spotifyClientSecret)
+
+	// Create a large list of fake artist profiles to test paging
+	var testData []ArtistProfile
+	for i := 0; i < 100; i++ {
+		testName := fmt.Sprintf("test%d", i)
+		testArtist := ArtistProfile{
+			Name: testName,
+			SpotifyID: testName,
+			Popularity: i,
+			Genres: []Genre{ Genre{Name: testName} },
+		}
+		testData = append(testData, testArtist)
+	}
+
+	dbResult := env.db.Create(&testData)
+	if dbResult.Error != nil {
+		assert.Fail(t, "Failed to save test info into database")
+	}
+
+	w := httptest.NewRecorder()
+	req, _ := http.NewRequest("GET", "/artists?name=test&page=15&page_size=2", nil)
+	router.ServeHTTP(w, req)
+
+	assert.Equal(t, 200, w.Code)
+	var resp SearchResponseList
+	err := json.NewDecoder(w.Body).Decode(&resp)
+	if err != nil {
+		assert.Fail(t, fmt.Sprintf("Could not validate and parse JSON response: %s", err.Error()))
+	}
+
+	assert.Equal(t, "test28", resp[0].SpotifyID)
+	assert.Equal(t, "test28", resp[0].Name)
+	assert.Equal(t, "test28", resp[0].Genres[0])
+	assert.Equal(t, 28, resp[0].Popularity)
+
+	// Test end of the returned data is correct too
+	assert.Equal(t, "test29", resp[1].SpotifyID)
+	assert.Equal(t, "test29", resp[1].Name)
+	assert.Equal(t, "test29", resp[1].Genres[0])
+	assert.Equal(t, 29, resp[1].Popularity)
+}