283 lines
7.8 KiB
Go
283 lines
7.8 KiB
Go
// Copyright 2016 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package vision
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import (
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"log"
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"os"
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"testing"
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"cloud.google.com/go/internal/testutil"
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"golang.org/x/net/context"
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"google.golang.org/api/option"
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)
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func TestAnnotate(t *testing.T) {
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ctx := context.Background()
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client := integrationTestClient(ctx, t)
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defer client.Close()
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tests := []struct {
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path string // path to image file, relative to testdata
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// If one of these is true, we expect that annotation to be non-nil.
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faces, landmarks, logos, labels, texts, fullText bool
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// We always expect safe search, image properties, web and crop hints to be present.
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}{
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{path: "face.jpg", faces: true, labels: true},
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{path: "cat.jpg", labels: true},
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{path: "faulkner.jpg", labels: true},
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{path: "mountain.jpg", texts: true, fullText: true, labels: true},
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{path: "no-text.jpg", labels: true},
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{path: "eiffel-tower.jpg", landmarks: true, labels: true},
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{path: "google.png", logos: true, labels: true, texts: true, fullText: true},
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}
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for _, test := range tests {
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annsSlice, err := client.Annotate(ctx, &AnnotateRequest{
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Image: testImage(test.path),
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MaxFaces: 1,
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MaxLandmarks: 1,
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MaxLogos: 1,
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MaxLabels: 1,
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MaxTexts: 1,
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Web: true,
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SafeSearch: true,
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ImageProps: true,
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CropHints: &CropHintsParams{},
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})
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if err != nil {
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t.Fatalf("annotating %s: %v", test.path, err)
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}
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anns := annsSlice[0]
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p := map[bool]string{true: "present", false: "absent"}
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if anns.Error != nil {
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t.Errorf("%s: got Error %v; want nil", test.path, anns.Error)
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continue
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}
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if got, want := (anns.Faces != nil), test.faces; got != want {
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t.Errorf("%s: faces %s, want %s", test.path, p[got], p[want])
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}
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if got, want := (anns.Landmarks != nil), test.landmarks; got != want {
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t.Errorf("%s: landmarks %s, want %s", test.path, p[got], p[want])
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}
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if got, want := (anns.Logos != nil), test.logos; got != want {
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t.Errorf("%s: logos %s, want %s", test.path, p[got], p[want])
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}
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if got, want := (anns.Labels != nil), test.labels; got != want {
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t.Errorf("%s: labels %s, want %s", test.path, p[got], p[want])
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}
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if got, want := (anns.Texts != nil), test.texts; got != want {
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t.Errorf("%s: texts %s, want %s", test.path, p[got], p[want])
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}
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if got, want := (anns.FullText != nil), test.fullText; got != want {
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t.Errorf("%s: full texts %s, want %s", test.path, p[got], p[want])
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}
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if got, want := (anns.SafeSearch != nil), true; got != want {
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t.Errorf("%s: safe search %s, want %s", test.path, p[got], p[want])
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}
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if got, want := (anns.ImageProps != nil), true; got != want {
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t.Errorf("%s: image properties %s, want %s", test.path, p[got], p[want])
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}
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if got, want := (anns.Web != nil), true; got != want {
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t.Errorf("%s: web %s, want %s", test.path, p[got], p[want])
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}
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if got, want := (anns.CropHints != nil), true; got != want {
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t.Errorf("%s: crop hints %s, want %s", test.path, p[got], p[want])
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}
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}
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}
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func TestDetectMethods(t *testing.T) {
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ctx := context.Background()
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client := integrationTestClient(ctx, t)
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defer client.Close()
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for i, test := range []struct {
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path string
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call func(*Image) (bool, error)
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}{
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{"face.jpg",
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func(img *Image) (bool, error) {
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as, err := client.DetectFaces(ctx, img, 1)
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return as != nil, err
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},
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},
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{"eiffel-tower.jpg",
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func(img *Image) (bool, error) {
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as, err := client.DetectLandmarks(ctx, img, 1)
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return as != nil, err
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},
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},
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{"google.png",
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func(img *Image) (bool, error) {
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as, err := client.DetectLogos(ctx, img, 1)
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return as != nil, err
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},
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},
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{"faulkner.jpg",
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func(img *Image) (bool, error) {
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as, err := client.DetectLabels(ctx, img, 1)
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return as != nil, err
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},
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},
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{"mountain.jpg",
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func(img *Image) (bool, error) {
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as, err := client.DetectTexts(ctx, img, 1)
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return as != nil, err
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},
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},
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{"mountain.jpg",
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func(img *Image) (bool, error) {
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as, err := client.DetectDocumentText(ctx, img)
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return as != nil, err
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},
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},
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{"cat.jpg",
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func(img *Image) (bool, error) {
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as, err := client.DetectSafeSearch(ctx, img)
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return as != nil, err
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},
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},
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{"cat.jpg",
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func(img *Image) (bool, error) {
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ip, err := client.DetectImageProps(ctx, img)
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return ip != nil, err
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},
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},
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{"cat.jpg",
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func(img *Image) (bool, error) {
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as, err := client.DetectWeb(ctx, img)
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return as != nil, err
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},
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},
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{"cat.jpg",
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func(img *Image) (bool, error) {
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ch, err := client.CropHints(ctx, img, nil)
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return ch != nil, err
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},
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},
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} {
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present, err := test.call(testImage(test.path))
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if err != nil {
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t.Errorf("%s, #%d: got err %v, want nil", test.path, i, err)
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continue
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}
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if !present {
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t.Errorf("%s, #%d: nil annotation, want non-nil", test.path, i)
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}
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}
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}
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// The DetectXXX methods of client that return EntityAnnotations.
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var entityDetectionMethods = []func(*Client, context.Context, *Image, int) ([]*EntityAnnotation, error){
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(*Client).DetectLandmarks,
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(*Client).DetectLogos,
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(*Client).DetectLabels,
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(*Client).DetectTexts,
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}
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func TestErrors(t *testing.T) {
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ctx := context.Background()
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client := integrationTestClient(ctx, t)
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defer client.Close()
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// Empty image.
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// With Client.Annotate, the RPC succeeds, but the Error field is non-nil.
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_, err := client.Annotate(ctx, &AnnotateRequest{
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Image: &Image{},
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ImageProps: true,
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})
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if err != nil {
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t.Errorf("got %v, want nil", err)
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}
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// Invalid image.
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badImg := &Image{content: []byte("ceci n'est pas une image")}
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// If only ImageProps is specified, the result is an annotation
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// with all fields (including Error) nil. But any actual detection will fail.
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_, err = client.Annotate(ctx, &AnnotateRequest{
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Image: badImg,
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SafeSearch: true,
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})
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if err != nil {
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t.Errorf("got %v, want error", err)
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}
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// With a Client.DetectXXX method, the Error field becomes the return value.
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_, err = client.DetectFaces(ctx, &Image{}, 1)
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if err == nil {
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t.Error("got nil, want error")
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}
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for i, edm := range entityDetectionMethods {
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_, err = edm(client, ctx, &Image{}, 1)
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if err == nil {
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t.Errorf("edm %d: got nil, want error", i)
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}
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}
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_, err = client.DetectSafeSearch(ctx, &Image{})
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if err == nil {
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t.Error("got nil, want error")
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}
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_, err = client.DetectImageProps(ctx, &Image{})
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if err == nil {
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t.Error("got nil, want error")
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}
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// Client.DetectXXX methods fail if passed a zero maxResults.
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img := testImage("cat.jpg")
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_, err = client.DetectFaces(ctx, img, 0)
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if err == nil {
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t.Error("got nil, want error")
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}
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for i, edm := range entityDetectionMethods {
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_, err = edm(client, ctx, img, 0)
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if err == nil {
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t.Errorf("edm %d: got nil, want error", i)
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}
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}
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}
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func integrationTestClient(ctx context.Context, t *testing.T) *Client {
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if testing.Short() {
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t.Skip("Integration tests skipped in short mode")
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}
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ts := testutil.TokenSource(ctx, Scope)
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if ts == nil {
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t.Skip("Integration tests skipped. See CONTRIBUTING.md for details")
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}
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client, err := NewClient(ctx, option.WithTokenSource(ts))
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if err != nil {
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t.Fatal(err)
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}
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return client
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}
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var images = map[string]*Image{}
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func testImage(path string) *Image {
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if img, ok := images[path]; ok {
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return img
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}
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f, err := os.Open("testdata/" + path)
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if err != nil {
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log.Fatal(err)
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}
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img, err := NewImageFromReader(f)
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if err != nil {
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log.Fatalf("reading image %q: %v", path, err)
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}
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images[path] = img
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return img
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}
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