1 files changed, 395 insertions, 0 deletions
diff --git a/dom/file/tests/common_blob.js b/dom/file/tests/common_blob.js
new file mode 100644
index 0000000000..261909af0d
--- /dev/null
+++ b/dom/file/tests/common_blob.js
@@ -0,0 +1,395 @@
+const RANGE_1 = 1;
+const RANGE_2 = 2;
+
+function testBlob(file, contents, testName) {
+  // Load file using FileReader
+  return (
+    new Promise(resolve => {
+      let r = new FileReader();
+      r.onload = event => {
+        is(
+          event.target.readyState,
+          FileReader.DONE,
+          "[FileReader] readyState in test FileReader.readAsBinaryString of " +
+            testName
+        );
+        is(
+          event.target.error,
+          null,
+          "[FileReader] no error in test FileReader.readAsBinaryString of " +
+            testName
+        );
+        // Do not use |is(event.target.result, contents, "...");| that may output raw binary data.
+        is(
+          event.target.result.length,
+          contents.length,
+          "[FileReader] Length of result in test FileReader.readAsBinaryString of " +
+            testName
+        );
+        ok(
+          event.target.result == contents,
+          "[FileReader] Content of result in test FileReader.readAsBinaryString of " +
+            testName
+        );
+        is(
+          event.lengthComputable,
+          true,
+          "[FileReader] lengthComputable in test FileReader.readAsBinaryString of " +
+            testName
+        );
+        is(
+          event.loaded,
+          contents.length,
+          "[FileReader] Loaded length in test FileReader.readAsBinaryString of " +
+            testName
+        );
+        is(
+          event.total,
+          contents.length,
+          "[FileReader] Total length in test FileReader.readAsBinaryString of " +
+            testName
+        );
+        resolve();
+      };
+      r.readAsBinaryString(file);
+    })
+
+      // Load file using URL.createObjectURL and XMLHttpRequest
+      .then(() => {
+        return new Promise(resolve => {
+          let xhr = new XMLHttpRequest();
+          xhr.open("GET", URL.createObjectURL(file));
+          xhr.onload = event => {
+            XHRLoadHandler(
+              event,
+              resolve,
+              contents,
+              "XMLHttpRequest load of " + testName
+            );
+          };
+          xhr.overrideMimeType("text/plain; charset=x-user-defined");
+          xhr.send();
+        });
+      })
+
+      // Send file to server using FormData and XMLHttpRequest
+      .then(() => {
+        return new Promise(resolve => {
+          let xhr = new XMLHttpRequest();
+          xhr.onload = function (event) {
+            checkMPSubmission(JSON.parse(event.target.responseText), [
+              { name: "hello", value: "world" },
+              {
+                name: "myfile",
+                value: contents,
+                fileName: file.name || "blob",
+                contentType: file.type || "application/octet-stream",
+              },
+            ]);
+            resolve();
+          };
+          xhr.open("POST", "../../../dom/html/test/form_submit_server.sjs");
+
+          let fd = new FormData();
+          fd.append("hello", "world");
+          fd.append("myfile", file);
+
+          xhr.send(fd);
+        });
+      })
+
+      // Send file to server using plain XMLHttpRequest
+      .then(() => {
+        return new Promise(resolve => {
+          let xhr = new XMLHttpRequest();
+          xhr.open("POST", "../../../dom/xhr/tests/file_XHRSendData.sjs");
+
+          xhr.onload = function (event) {
+            is(
+              event.target.getResponseHeader("Result-Content-Type"),
+              file.type ? file.type : null,
+              "request content-type in XMLHttpRequest send of " + testName
+            );
+            is(
+              event.target.getResponseHeader("Result-Content-Length"),
+              String(file.size),
+              "request content-length in XMLHttpRequest send of " + testName
+            );
+          };
+
+          xhr.addEventListener("load", event => {
+            XHRLoadHandler(
+              event,
+              resolve,
+              contents,
+              "XMLHttpRequest send of " + testName
+            );
+          });
+          xhr.overrideMimeType("text/plain; charset=x-user-defined");
+          xhr.send(file);
+        });
+      })
+  );
+}
+
+function testSlice(file, size, type, contents, fileType, range) {
+  is(file.type, type, fileType + " file is correct type");
+  is(file.size, size, fileType + " file is correct size");
+  if (fileType == "fileFile") {
+    ok(file instanceof File, fileType + " file is a File");
+  } else if (fileType == "memFile") {
+    ok(!(file instanceof File), fileType + " file is not a File");
+  }
+  ok(file instanceof Blob, fileType + " file is also a Blob");
+
+  let slice = file.slice(0, size);
+  ok(slice instanceof Blob, fileType + " fullsize slice is a Blob");
+  ok(!(slice instanceof File), fileType + " fullsize slice is not a File");
+
+  slice = file.slice(0, 1234);
+  ok(slice instanceof Blob, fileType + " sized slice is a Blob");
+  ok(!(slice instanceof File), fileType + " sized slice is not a File");
+
+  slice = file.slice(0, size, "foo/bar");
+  is(slice.type, "foo/bar", fileType + " fullsize slice foo/bar type");
+
+  slice = file.slice(0, 5432, "foo/bar");
+  is(slice.type, "foo/bar", fileType + " sized slice foo/bar type");
+
+  is(slice.slice(0, 10).type, "", fileType + " slice-slice type");
+  is(slice.slice(0, 10).size, 10, fileType + " slice-slice size");
+  is(
+    slice.slice(0, 10, "hello/world").type,
+    "hello/world",
+    fileType + " slice-slice hello/world type"
+  );
+  is(
+    slice.slice(0, 10, "hello/world").size,
+    10,
+    fileType + " slice-slice hello/world size"
+  );
+
+  // Start, end, expected size
+  var indexes_range_1 = [
+    [0, size, size],
+    [0, 1234, 1234],
+    [size - 500, size, 500],
+    [size - 500, size + 500, 500],
+    [size + 500, size + 1500, 0],
+    [0, 0, 0],
+    [1000, 1000, 0],
+    [size, size, 0],
+    [undefined, undefined, size],
+    [0, undefined, size],
+  ];
+
+  var indexes_range_2 = [
+    [100, undefined, size - 100],
+    [-100, undefined, 100],
+    [100, -100, size - 200],
+    [-size - 100, undefined, size],
+    [-2 * size - 100, 500, 500],
+    [0, -size - 100, 0],
+    [100, -size - 100, 0],
+    [50, -size + 100, 50],
+    [0, 33000, 33000],
+    [1000, 34000, 33000],
+  ];
+
+  let indexes;
+  if (range == RANGE_1) {
+    indexes = indexes_range_1;
+  } else if (range == RANGE_2) {
+    indexes = indexes_range_2;
+  } else {
+    throw "Invalid range!";
+  }
+
+  function runNextTest() {
+    if (!indexes.length) {
+      return Promise.resolve(true);
+    }
+
+    let index = indexes.shift();
+
+    let sliceContents;
+    let testName;
+    if (index[0] == undefined) {
+      slice = file.slice();
+      sliceContents = contents.slice();
+      testName = fileType + " slice()";
+    } else if (index[1] == undefined) {
+      slice = file.slice(index[0]);
+      sliceContents = contents.slice(index[0]);
+      testName = fileType + " slice(" + index[0] + ")";
+    } else {
+      slice = file.slice(index[0], index[1]);
+      sliceContents = contents.slice(index[0], index[1]);
+      testName = fileType + " slice(" + index[0] + ", " + index[1] + ")";
+    }
+
+    is(slice.type, "", testName + " type");
+    is(slice.size, index[2], testName + " size");
+    is(sliceContents.length, index[2], testName + " data size");
+
+    return testBlob(slice, sliceContents, testName).then(runNextTest);
+  }
+
+  return runNextTest()
+    .then(() => {
+      // Slice of slice
+      let sliceOfSlice = file.slice(0, 40000);
+      return testBlob(
+        sliceOfSlice.slice(5000, 42000),
+        contents.slice(5000, 40000),
+        "file slice slice"
+      );
+    })
+    .then(() => {
+      // ...of slice of slice
+      let sliceOfSlice = file
+        .slice(0, 40000)
+        .slice(5000, 42000)
+        .slice(400, 700);
+      SpecialPowers.gc();
+      return testBlob(
+        sliceOfSlice,
+        contents.slice(5400, 5700),
+        "file slice slice slice"
+      );
+    });
+}
+
+function convertXHRBinary(s) {
+  let res = "";
+  for (let i = 0; i < s.length; ++i) {
+    res += String.fromCharCode(s.charCodeAt(i) & 255);
+  }
+  return res;
+}
+
+function XHRLoadHandler(event, resolve, contents, testName) {
+  is(event.target.readyState, 4, "[XHR] readyState in test " + testName);
+  is(event.target.status, 200, "[XHR] no error in test " + testName);
+  // Do not use |is(convertXHRBinary(event.target.responseText), contents, "...");| that may output raw binary data.
+  let convertedData = convertXHRBinary(event.target.responseText);
+  is(
+    convertedData.length,
+    contents.length,
+    "[XHR] Length of result in test " + testName
+  );
+  ok(convertedData == contents, "[XHR] Content of result in test " + testName);
+  is(
+    event.lengthComputable,
+    event.total != 0,
+    "[XHR] lengthComputable in test " + testName
+  );
+  is(event.loaded, contents.length, "[XHR] Loaded length in test " + testName);
+  is(event.total, contents.length, "[XHR] Total length in test " + testName);
+  resolve();
+}
+
+function checkMPSubmission(sub, expected) {
+  function getPropCount(o) {
+    let x,
+      l = 0;
+    for (x in o) {
+      ++l;
+    }
+    return l;
+  }
+
+  is(sub.length, expected.length, "Correct number of items");
+  let i;
+  for (i = 0; i < expected.length; ++i) {
+    if (!("fileName" in expected[i])) {
+      is(
+        sub[i].headers["Content-Disposition"],
+        'form-data; name="' + expected[i].name + '"',
+        "Correct name (A)"
+      );
+      is(getPropCount(sub[i].headers), 1, "Wrong number of headers (A)");
+    } else {
+      is(
+        sub[i].headers["Content-Disposition"],
+        'form-data; name="' +
+          expected[i].name +
+          '"; filename="' +
+          expected[i].fileName +
+          '"',
+        "Correct name (B)"
+      );
+      is(
+        sub[i].headers["Content-Type"],
+        expected[i].contentType,
+        "Correct content type (B)"
+      );
+      is(getPropCount(sub[i].headers), 2, "Wrong number of headers (B)");
+    }
+    // Do not use |is(sub[i].body, expected[i].value, "...");| that may output raw binary data.
+    is(sub[i].body.length, expected[i].value.length, "Length of correct value");
+    ok(sub[i].body == expected[i].value, "Content of correct value");
+  }
+}
+
+function createCanvasURL() {
+  return new Promise(resolve => {
+    // Create a decent-sized image
+    let cx = $("canvas").getContext("2d");
+    let s = cx.canvas.width;
+    let grad = cx.createLinearGradient(0, 0, s - 1, s - 1);
+    for (i = 0; i < 0.95; i += 0.1) {
+      grad.addColorStop(i, "white");
+      grad.addColorStop(i + 0.05, "black");
+    }
+    grad.addColorStop(1, "white");
+    cx.fillStyle = grad;
+    cx.fillRect(0, 0, s - 1, s - 1);
+    cx.fillStyle = "rgba(200, 0, 0, 0.9)";
+    cx.fillRect(0.1 * s, 0.1 * s, 0.7 * s, 0.7 * s);
+    cx.strokeStyle = "rgba(0, 0, 130, 0.5)";
+    cx.lineWidth = 0.14 * s;
+    cx.beginPath();
+    cx.arc(0.6 * s, 0.6 * s, 0.3 * s, 0, Math.PI * 2, true);
+    cx.stroke();
+    cx.closePath();
+    cx.fillStyle = "rgb(0, 255, 0)";
+    cx.beginPath();
+    cx.arc(0.1 * s, 0.8 * s, 0.1 * s, 0, Math.PI * 2, true);
+    cx.fill();
+    cx.closePath();
+
+    let data = atob(
+      cx.canvas
+        .toDataURL("image/png")
+        .substring("data:text/png;base64,".length + 1)
+    );
+
+    // This might fail if we dramatically improve the png encoder. If that happens
+    // please increase the complexity or size of the image generated above to ensure
+    // that we're testing with files that are large enough.
+    ok(data.length > 65536, "test data sufficiently large");
+
+    resolve(data);
+  });
+}
+
+function createFile(data, name) {
+  return new Promise(resolve => {
+    SpecialPowers.createFiles([{ name, data }], files => {
+      resolve(files[0]);
+    });
+  });
+}
+
+function toBlobPromise(canvas) {
+  function BlobListener(callback, file) {
+    var reader = new FileReader();
+    reader.onload = () => callback(file);
+    reader.readAsDataURL(file);
+  }
+
+  return new Promise(resolve => {
+    canvas.toBlob(BlobListener.bind(undefined, resolve));
+  });
+}