20261008

2026-10-08 18:18:21 +08:00
parent 9cc1ff546c
commit 1e3095c05e
1911 changed files with 349551 additions and 0 deletions
@@ -0,0 +1,221 @@
+const assert = require('assert');
+const PDF = require('../');
+const fs = require('fs');
+
+// to test another valid pdf file just change this 5 constants.
+const PDF_FILE = './test/data/04-valid.pdf';
+const VERSION = 'default';
+const PDF_PAGE_COUNT = 5;
+const FIST_PAGE_TEXT = 'Exercise  is  one  of  the  low-cost  and  easiest  ways  for  improving  life  standards';
+const LAST_PAGE_TEXT = 'accounts  for  the  biological  activity  of  endothelium-derived';
+
+//TODO: add extra test cases.
+describe(`File:${PDF_FILE} PDF.js Version:${VERSION}`, function() {
+    this.timeout(20000);
+    let dataBuffer = fs.readFileSync(PDF_FILE);
+    it('should pass parse', function() {
+        let options = {
+            version: VERSION
+        };
+
+        return PDF(dataBuffer, options).then(function(data) {
+            fs.writeFileSync(`${PDF_FILE}.txt`, data.text, {
+                encoding: 'utf8',
+                flag: 'w'
+            });
+            assert.equal(data.numpages, PDF_PAGE_COUNT);
+            assert.equal(data.numrender, PDF_PAGE_COUNT);
+            assert.equal(data.text.includes(FIST_PAGE_TEXT), true);
+            assert.equal(data.text.includes(LAST_PAGE_TEXT), true);
+
+        });
+    });
+
+    it('should pass parse with option pagerender:null', function() {
+        let options = {
+            version: VERSION,
+            pagerender: null,
+            max: 0
+        };
+
+        return PDF(dataBuffer, options).then(function(data) {
+            //fs.writeFileSync('./data/01-test.txt', data.text, 'utf8');
+            assert.equal(data.numpages, PDF_PAGE_COUNT);
+            assert.equal(data.numrender, PDF_PAGE_COUNT);
+            assert.equal(data.text.includes(FIST_PAGE_TEXT), true);
+            assert.equal(data.text.includes(LAST_PAGE_TEXT), true);
+
+        });
+    });
+
+
+    it('should pass parse with option pagerender:undefined', function() {
+        let options = {
+            version: VERSION,
+            max: 0
+        };
+
+        return PDF(dataBuffer, options).then(function(data) {
+            //fs.writeFileSync('./data/01-test.txt', data.text, 'utf8');
+            assert.equal(data.numpages, PDF_PAGE_COUNT);
+            assert.equal(data.numrender, PDF_PAGE_COUNT);
+            assert.equal(data.text.includes(FIST_PAGE_TEXT), true);
+            assert.equal(data.text.includes(LAST_PAGE_TEXT), true);
+
+        });
+    });
+
+
+    it('should pass parse with option max:-1', function() {
+        let options = {
+            version: VERSION,
+            max: -1
+        };
+
+        return PDF(dataBuffer, options).then(function(data) {
+            //fs.writeFileSync('./data/01-test.txt', data.text, 'utf8');
+            assert.equal(data.numpages, PDF_PAGE_COUNT);
+            assert.equal(data.numrender, PDF_PAGE_COUNT);
+            assert.equal(data.text.includes(FIST_PAGE_TEXT), true);
+            assert.equal(data.text.includes(LAST_PAGE_TEXT), true);
+
+        });
+    });
+
+
+    it(`should pass parse with option max:${PDF_PAGE_COUNT-1}`, function() {
+        let options_01 = {
+            version: VERSION,
+            max: PDF_PAGE_COUNT - 1
+        };
+
+        let options_02 = {
+            version: VERSION
+        };
+
+        return PDF(dataBuffer, options_01).then(function(data) {
+
+            //fs.writeFileSync('./data/01-test.txt', data.text, 'utf8');
+            assert.equal(data.numpages, PDF_PAGE_COUNT);
+            assert.equal(data.numrender, PDF_PAGE_COUNT - 1);
+            assert.equal(data.text.includes(FIST_PAGE_TEXT), true);
+            assert.notEqual(data.text.includes(LAST_PAGE_TEXT), true);
+
+        }).then(function() {
+            return PDF(dataBuffer, options_02).then(function(data) {
+                //fs.writeFileSync('./data/01-test.txt', data.text, 'utf8');
+                assert.equal(data.numpages, PDF_PAGE_COUNT);
+                assert.equal(data.numrender, PDF_PAGE_COUNT);
+                assert.equal(data.text.includes(FIST_PAGE_TEXT), true);
+                assert.equal(data.text.includes(LAST_PAGE_TEXT), true);
+
+            });
+        });
+    });
+
+
+    it(`should pass parse with option max:${PDF_PAGE_COUNT-1} & render callback`, function() {
+        function render_page(pageData) {
+            //check documents https://mozilla.github.io/pdf.js/
+            let render_options = {
+                //replaces all occurrences of whitespace with standard spaces (0x20). The default value is `false`.
+                normalizeWhitespace: true,
+                //do not attempt to combine same line TextItem's. The default value is `false`.
+                disableCombineTextItems: false
+            }
+
+            return pageData.getTextContent(render_options)
+                .then(function(textContent) {
+                    let lastY, text = '';
+                    for (let item of textContent.items) {
+                        if (lastY == item.transform[5] || !lastY){
+                            text += item.str;
+                        }  
+                        else{
+                            text += '\n' + item.str;
+                        }    
+                        lastY = item.transform[5];
+                    }
+                    return text;
+                });
+        }
+
+        let options_01 = {
+            version: VERSION,
+            max: PDF_PAGE_COUNT - 1,
+            pagerender: render_page
+        };
+
+        let options_02 = {
+            version: VERSION
+        };
+
+        return PDF(dataBuffer, options_01).then(function(data) {
+
+            //fs.writeFileSync('./data/01-test.txt', data.text, 'utf8');
+            assert.equal(data.numpages, PDF_PAGE_COUNT);
+            assert.equal(data.numrender, PDF_PAGE_COUNT - 1);
+            assert.equal(data.text.includes(FIST_PAGE_TEXT), true);
+            assert.notEqual(data.text.includes(LAST_PAGE_TEXT), true);
+
+        }).then(function() {
+            return PDF(dataBuffer, options_02).then(function(data) {
+                //fs.writeFileSync('./data/01-test.txt', data.text, 'utf8');
+                assert.equal(data.numpages, PDF_PAGE_COUNT);
+                assert.equal(data.numrender, PDF_PAGE_COUNT);
+                assert.equal(data.text.includes(FIST_PAGE_TEXT), true);
+                assert.equal(data.text.includes(LAST_PAGE_TEXT), true);
+
+            });
+        });
+    });
+
+
+    it(`should pass parse with option max:${PDF_PAGE_COUNT-1} & render modified callback`, function() {
+        function render_page(pageData) {
+
+            let render_options = {
+                //replaces all occurrences of whitespace with standard spaces (0x20). The default value is `false`.
+                normalizeWhitespace: true,
+                //do not attempt to combine same line TextItem's. The default value is `false`.
+                disableCombineTextItems: false
+            }
+
+            return pageData.getTextContent(render_options)
+                .then(function(textContent) {
+                    return 'modified callback';
+                });
+        }
+
+        let options_01 = {
+            version: VERSION,
+            max: PDF_PAGE_COUNT - 1,
+            pagerender: render_page
+        };
+
+        let options_02 = {
+            version: VERSION
+        };
+
+        return PDF(dataBuffer, options_01).then(function(data) {
+
+            //fs.writeFileSync('./data/01-test.txt', data.text, 'utf8');
+            assert.equal(data.numpages, PDF_PAGE_COUNT);
+            assert.equal(data.numrender, PDF_PAGE_COUNT - 1);
+            assert.equal(data.text.includes('modified callback'), true);
+            assert.notEqual(data.text.includes(LAST_PAGE_TEXT), true);
+
+        }).then(function() {
+            return PDF(dataBuffer, options_02).then(function(data) {
+                //fs.writeFileSync('./data/01-test.txt', data.text, 'utf8');
+                assert.equal(data.numpages, PDF_PAGE_COUNT);
+                assert.equal(data.numrender, PDF_PAGE_COUNT);
+                assert.equal(data.text.includes(FIST_PAGE_TEXT), true);
+                assert.equal(data.text.includes(LAST_PAGE_TEXT), true);
+
+            });
+        });
+    });
+
+
+});