From d271adb457fe177908e3ab35164607b41ce83a88 Mon Sep 17 00:00:00 2001
From: Calixte Denizet <calixte.denizet@gmail.com>
Date: Fri, 16 Jun 2023 09:44:18 +0200
Subject: [PATCH] Add a test to check that the compression is ok when saving an
 annotation

---
 test/pdfs/.gitignore  |   1 +
 test/pdfs/empty.pdf   | Bin 0 -> 4920 bytes
 test/unit/api_spec.js |  43 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 44 insertions(+)
 create mode 100755 test/pdfs/empty.pdf

diff --git a/test/pdfs/.gitignore b/test/pdfs/.gitignore
index 192ec0c4524215..252d61271c4347 100644
--- a/test/pdfs/.gitignore
+++ b/test/pdfs/.gitignore
@@ -601,3 +601,4 @@
 !issue16538.pdf
 !freetexts.pdf
 !issue16553.pdf
+!empty.pdf
diff --git a/test/pdfs/empty.pdf b/test/pdfs/empty.pdf
new file mode 100755
index 0000000000000000000000000000000000000000..d6d144f529bc8bc26eb2e3248acd70a0ba3bf67f
GIT binary patch
literal 4920
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literal 0
HcmV?d00001

diff --git a/test/unit/api_spec.js b/test/unit/api_spec.js
index 98c5d5bc91f91f..c5d1c97f07348d 100644
--- a/test/unit/api_spec.js
+++ b/test/unit/api_spec.js
@@ -2075,6 +2075,49 @@ describe("api", function () {
       await loadingTask.destroy();
     });
 
+    it("write a a new annotation, save the pdf and check that the text content is correct", async function () {
+      // This test helps to check that the text stream is correctly compressed
+      // when saving.
+      const manifesto = `
+      The Mozilla Manifesto Addendum
+      Pledge for a Healthy Internet
+      
+      The open, global internet is the most powerful communication and collaboration resource we have ever seen.
+      It embodies some of our deepest hopes for human progress.
+      It enables new opportunities for learning, building a sense of shared humanity, and solving the pressing problems
+      facing people everywhere.
+      
+      Over the last decade we have seen this promise fulfilled in many ways.
+      We have also seen the power of the internet used to magnify divisiveness,
+      incite violence, promote hatred, and intentionally manipulate fact and reality.
+      We have learned that we should more explicitly set out our aspirations for the human experience of the internet.
+      We do so now.
+      `.repeat(100);
+      let loadingTask = getDocument(buildGetDocumentParams("empty.pdf"));
+      let pdfDoc = await loadingTask.promise;
+      pdfDoc.annotationStorage.setValue("pdfjs_internal_editor_0", {
+        annotationType: AnnotationEditorType.FREETEXT,
+        rect: [10, 10, 500, 500],
+        rotation: 0,
+        fontSize: 1,
+        color: [0, 0, 0],
+        value: manifesto,
+        pageIndex: 0,
+      });
+
+      const data = await pdfDoc.saveDocument();
+      await loadingTask.destroy();
+
+      loadingTask = getDocument(data);
+      pdfDoc = await loadingTask.promise;
+      const page = await pdfDoc.getPage(1);
+      const annotations = await page.getAnnotations();
+
+      expect(annotations[0].contentsObj.str).toEqual(manifesto);
+
+      await loadingTask.destroy();
+    });
+
     describe("Cross-origin", function () {
       let loadingTask;
       function _checkCanLoad(expectSuccess, filename, options) {