Presentation tests (#409)

presentation/presentation_test.go

@@ -3,6 +3,8 @@ package presentation
 import (
 	"testing"
 
+	"github.com/unidoc/unioffice/common"
+	"github.com/unidoc/unioffice/schema/soo/dml"
 	"github.com/unidoc/unioffice/schema/soo/pml"
 )
 
@@ -26,3 +28,139 @@ func TestRemoveChoicesWithPics(t *testing.T) {
 		}
 	}
 }
+
+// Filling in placeholder fields: both text and images and check that it is as expected
+
+// Saving slides and checking if valid
+
+// anything else we can think of?
+
+func TestFillPlaceholderText(t *testing.T) {
+	ppt, err := loadTemplateHelper()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Add new slide from template
+	layout, err := ppt.GetLayoutByName("Picture with Caption")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	slide, err := ppt.AddDefaultSlideWithLayout(layout)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Inject content into placeholders
+	title, _ := slide.GetPlaceholder(pml.ST_PlaceholderTypeTitle)
+	title.SetText("New title")
+
+	body, _ := slide.GetPlaceholder(pml.ST_PlaceholderTypeBody)
+	body.SetText("New body text")
+
+	titleExpected := "New title"
+	titleGot := slide.X().CSld.SpTree.Choice[0].Sp[0].TxBody.P[0].EG_TextRun[0].R.T
+	if titleExpected != titleGot {
+		t.Errorf("Expected title to be %s, got %s", titleExpected, titleGot)
+	}
+
+	bodyTextExpected := "New body text"
+	bodyTextGot := slide.X().CSld.SpTree.Choice[2].Sp[0].TxBody.P[0].EG_TextRun[0].R.T
+	if bodyTextExpected != bodyTextGot {
+		t.Errorf("Expected body text to be %s, got %s", bodyTextExpected, bodyTextGot)
+	}
+}
+
+func TestFillPlaceholderImage(t *testing.T) {
+	ppt, err := loadTemplateHelper()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Add local image to pptx
+	image, err := common.ImageFromFile("testdata/gophercolor.png")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	iRef, err := ppt.AddImage(image)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Add new slide from template
+	layout, err := ppt.GetLayoutByName("Picture with Caption")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	slide, err := ppt.AddDefaultSlideWithLayout(layout)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	imageRelID := slide.AddImageToRels(iRef)
+
+	pic, err := slide.GetPlaceholder(pml.ST_PlaceholderTypePic)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	spPr := dml.NewCT_ShapeProperties()
+	spPr.BlipFill = dml.NewCT_BlipFillProperties()
+	spPr.BlipFill.Blip = dml.NewCT_Blip()
+	spPr.BlipFill.Blip.EmbedAttr = &imageRelID
+	spPr.BlipFill.Stretch = dml.NewCT_StretchInfoProperties() // stretch to parent block with default values
+
+	pic.X().SpPr = spPr
+
+	imageRelIDGot := *slide.X().CSld.SpTree.Choice[1].Sp[0].SpPr.BlipFill.Blip.EmbedAttr
+	if imageRelIDGot != imageRelID {
+		t.Errorf("Expected image relationship id to be %s, got %s", imageRelID, imageRelIDGot)
+	}
+	if len(ppt.Images) != 1 {
+		t.Fatalf("Expected number of images id to be %d, got %d", 1, len(ppt.Images))
+	}
+
+	img := ppt.Images[0]
+
+	formatExpected := "png"
+	formatGot := img.Format()
+	if formatExpected != formatGot {
+		t.Errorf("Expected image format to be %s, got %s", formatExpected, formatGot)
+	}
+
+	pathExpected := "testdata/gophercolor.png"
+	pathGot := img.Path()
+	if pathExpected != pathGot {
+		t.Errorf("Expected image path to be %s, got %s", pathExpected, pathGot)
+	}
+
+	sizeXExpected := 400
+	sizeXGot := img.Size().X
+	if sizeXExpected != sizeXGot {
+		t.Errorf("Expected image sizeX to be %d, got %d", sizeXExpected, sizeXGot)
+	}
+
+	sizeYExpected := 400
+	sizeYGot := img.Size().Y
+	if sizeYExpected != sizeYGot {
+		t.Errorf("Expected image sizeY to be %d, got %d", sizeYExpected, sizeYGot)
+	}
+}
+
+func loadTemplateHelper() (*Presentation, error) {
+	ppt, err := OpenTemplate("testdata/template.potx")
+	if err != nil {
+		return nil, err
+	}
+
+	for _, s := range ppt.Slides() {
+		if err = ppt.RemoveSlide(s); err != nil {
+			return nil, err
+		}
+	}
+
+	return ppt, nil
+}