Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

38 files changed, 1076 insertions, 0 deletions

diff --git a/modules/libmar/tests/unit/data/0_sized.mar b/modules/libmar/tests/unit/data/0_sized.mar
new file mode 100644
index 0000000000..357eeb9a87
--- /dev/null
+++ b/modules/libmar/tests/unit/data/0_sized.mar
diff --git a/modules/libmar/tests/unit/data/0_sized_file b/modules/libmar/tests/unit/data/0_sized_file
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/modules/libmar/tests/unit/data/0_sized_file
diff --git a/modules/libmar/tests/unit/data/1_byte.mar b/modules/libmar/tests/unit/data/1_byte.mar
new file mode 100644
index 0000000000..a137f11adc
--- /dev/null
+++ b/modules/libmar/tests/unit/data/1_byte.mar
diff --git a/modules/libmar/tests/unit/data/1_byte_file b/modules/libmar/tests/unit/data/1_byte_file
new file mode 100644
index 0000000000..56a6051ca2
--- /dev/null
+++ b/modules/libmar/tests/unit/data/1_byte_file
@@ -0,0 +1 @@
+1
\ No newline at end of file
diff --git a/modules/libmar/tests/unit/data/binary_data.mar b/modules/libmar/tests/unit/data/binary_data.mar
new file mode 100644
index 0000000000..7fef469898
--- /dev/null
+++ b/modules/libmar/tests/unit/data/binary_data.mar
diff --git a/modules/libmar/tests/unit/data/binary_data_file b/modules/libmar/tests/unit/data/binary_data_file
new file mode 100644
index 0000000000..a0d7369e45
--- /dev/null
+++ b/modules/libmar/tests/unit/data/binary_data_file
diff --git a/modules/libmar/tests/unit/data/cert9.db b/modules/libmar/tests/unit/data/cert9.db
new file mode 100644
index 0000000000..e0d6191e64
--- /dev/null
+++ b/modules/libmar/tests/unit/data/cert9.db
diff --git a/modules/libmar/tests/unit/data/key4.db b/modules/libmar/tests/unit/data/key4.db
new file mode 100644
index 0000000000..85c9c5a215
--- /dev/null
+++ b/modules/libmar/tests/unit/data/key4.db
diff --git a/modules/libmar/tests/unit/data/manipulated_backend_collision.mar b/modules/libmar/tests/unit/data/manipulated_backend_collision.mar
new file mode 100644
index 0000000000..41d4f78482
--- /dev/null
+++ b/modules/libmar/tests/unit/data/manipulated_backend_collision.mar
diff --git a/modules/libmar/tests/unit/data/manipulated_frontend_collision.mar b/modules/libmar/tests/unit/data/manipulated_frontend_collision.mar
new file mode 100644
index 0000000000..582af58b59
--- /dev/null
+++ b/modules/libmar/tests/unit/data/manipulated_frontend_collision.mar
diff --git a/modules/libmar/tests/unit/data/manipulated_is_contained.mar b/modules/libmar/tests/unit/data/manipulated_is_contained.mar
new file mode 100644
index 0000000000..d51b23587d
--- /dev/null
+++ b/modules/libmar/tests/unit/data/manipulated_is_contained.mar
diff --git a/modules/libmar/tests/unit/data/manipulated_is_container.mar b/modules/libmar/tests/unit/data/manipulated_is_container.mar
new file mode 100644
index 0000000000..98b33ce9e5
--- /dev/null
+++ b/modules/libmar/tests/unit/data/manipulated_is_container.mar
diff --git a/modules/libmar/tests/unit/data/manipulated_multiple_collision.mar b/modules/libmar/tests/unit/data/manipulated_multiple_collision.mar
new file mode 100644
index 0000000000..7e0a3dd724
--- /dev/null
+++ b/modules/libmar/tests/unit/data/manipulated_multiple_collision.mar
diff --git a/modules/libmar/tests/unit/data/manipulated_multiple_collision_first.mar b/modules/libmar/tests/unit/data/manipulated_multiple_collision_first.mar
new file mode 100644
index 0000000000..a10d3eb53b
--- /dev/null
+++ b/modules/libmar/tests/unit/data/manipulated_multiple_collision_first.mar
diff --git a/modules/libmar/tests/unit/data/manipulated_multiple_collision_last.mar b/modules/libmar/tests/unit/data/manipulated_multiple_collision_last.mar
new file mode 100644
index 0000000000..bfbb9ba853
--- /dev/null
+++ b/modules/libmar/tests/unit/data/manipulated_multiple_collision_last.mar
diff --git a/modules/libmar/tests/unit/data/manipulated_same_offset.mar b/modules/libmar/tests/unit/data/manipulated_same_offset.mar
new file mode 100644
index 0000000000..1326d1afd8
--- /dev/null
+++ b/modules/libmar/tests/unit/data/manipulated_same_offset.mar
diff --git a/modules/libmar/tests/unit/data/manipulated_signed.mar b/modules/libmar/tests/unit/data/manipulated_signed.mar
new file mode 100644
index 0000000000..df8b3b5dbb
--- /dev/null
+++ b/modules/libmar/tests/unit/data/manipulated_signed.mar
diff --git a/modules/libmar/tests/unit/data/multiple_file.mar b/modules/libmar/tests/unit/data/multiple_file.mar
new file mode 100644
index 0000000000..183493a368
--- /dev/null
+++ b/modules/libmar/tests/unit/data/multiple_file.mar
diff --git a/modules/libmar/tests/unit/data/multiple_signed_no_pib.mar b/modules/libmar/tests/unit/data/multiple_signed_no_pib.mar
new file mode 100644
index 0000000000..fb56eef98e
--- /dev/null
+++ b/modules/libmar/tests/unit/data/multiple_signed_no_pib.mar
diff --git a/modules/libmar/tests/unit/data/multiple_signed_pib.mar b/modules/libmar/tests/unit/data/multiple_signed_pib.mar
new file mode 100644
index 0000000000..3624436cf5
--- /dev/null
+++ b/modules/libmar/tests/unit/data/multiple_signed_pib.mar
diff --git a/modules/libmar/tests/unit/data/multiple_signed_pib_2.mar b/modules/libmar/tests/unit/data/multiple_signed_pib_2.mar
new file mode 100644
index 0000000000..edce42b854
--- /dev/null
+++ b/modules/libmar/tests/unit/data/multiple_signed_pib_2.mar
diff --git a/modules/libmar/tests/unit/data/multiple_signed_pib_mar.sig.0 b/modules/libmar/tests/unit/data/multiple_signed_pib_mar.sig.0
new file mode 100644
index 0000000000..fa75b9f231
--- /dev/null
+++ b/modules/libmar/tests/unit/data/multiple_signed_pib_mar.sig.0
@@ -0,0 +1,11 @@
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\ No newline at end of file
diff --git a/modules/libmar/tests/unit/data/multiple_signed_pib_mar.sig.1 b/modules/libmar/tests/unit/data/multiple_signed_pib_mar.sig.1
new file mode 100644
index 0000000000..3ab4cef5f4
--- /dev/null
+++ b/modules/libmar/tests/unit/data/multiple_signed_pib_mar.sig.1
@@ -0,0 +1,11 @@
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\ No newline at end of file
diff --git a/modules/libmar/tests/unit/data/multiple_signed_pib_mar.sig.2 b/modules/libmar/tests/unit/data/multiple_signed_pib_mar.sig.2
new file mode 100644
index 0000000000..974a425137
--- /dev/null
+++ b/modules/libmar/tests/unit/data/multiple_signed_pib_mar.sig.2
@@ -0,0 +1,11 @@
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\ No newline at end of file
diff --git a/modules/libmar/tests/unit/data/mycert.der b/modules/libmar/tests/unit/data/mycert.der
new file mode 100644
index 0000000000..ea1fd47faa
--- /dev/null
+++ b/modules/libmar/tests/unit/data/mycert.der
diff --git a/modules/libmar/tests/unit/data/mycert2.der b/modules/libmar/tests/unit/data/mycert2.der
new file mode 100644
index 0000000000..d8cdfea972
--- /dev/null
+++ b/modules/libmar/tests/unit/data/mycert2.der
diff --git a/modules/libmar/tests/unit/data/mycert3.der b/modules/libmar/tests/unit/data/mycert3.der
new file mode 100644
index 0000000000..b942d4d795
--- /dev/null
+++ b/modules/libmar/tests/unit/data/mycert3.der
diff --git a/modules/libmar/tests/unit/data/no_pib.mar b/modules/libmar/tests/unit/data/no_pib.mar
new file mode 100644
index 0000000000..8976e7d737
--- /dev/null
+++ b/modules/libmar/tests/unit/data/no_pib.mar
diff --git a/modules/libmar/tests/unit/data/signed_no_pib.mar b/modules/libmar/tests/unit/data/signed_no_pib.mar
new file mode 100644
index 0000000000..92d97fec51
--- /dev/null
+++ b/modules/libmar/tests/unit/data/signed_no_pib.mar
diff --git a/modules/libmar/tests/unit/data/signed_pib.mar b/modules/libmar/tests/unit/data/signed_pib.mar
new file mode 100644
index 0000000000..1b8baa7969
--- /dev/null
+++ b/modules/libmar/tests/unit/data/signed_pib.mar
diff --git a/modules/libmar/tests/unit/data/signed_pib_mar.signature.0 b/modules/libmar/tests/unit/data/signed_pib_mar.signature.0
new file mode 100644
index 0000000000..d597fa5491
--- /dev/null
+++ b/modules/libmar/tests/unit/data/signed_pib_mar.signature.0
@@ -0,0 +1,11 @@
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\ No newline at end of file
diff --git a/modules/libmar/tests/unit/data/signed_pib_mar.signature.mycert2 b/modules/libmar/tests/unit/data/signed_pib_mar.signature.mycert2
new file mode 100644
index 0000000000..045fc80be1
--- /dev/null
+++ b/modules/libmar/tests/unit/data/signed_pib_mar.signature.mycert2
@@ -0,0 +1,11 @@
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\ No newline at end of file
diff --git a/modules/libmar/tests/unit/data/signed_pib_with_mycert2.mar b/modules/libmar/tests/unit/data/signed_pib_with_mycert2.mar
new file mode 100644
index 0000000000..22a998e227
--- /dev/null
+++ b/modules/libmar/tests/unit/data/signed_pib_with_mycert2.mar
diff --git a/modules/libmar/tests/unit/head_libmar.js b/modules/libmar/tests/unit/head_libmar.js
new file mode 100644
index 0000000000..49ce2e8ba6
--- /dev/null
+++ b/modules/libmar/tests/unit/head_libmar.js
@@ -0,0 +1,162 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const BIN_SUFFIX = mozinfo.bin_suffix;
+const tempDir = do_get_tempdir();
+
+/**
+ * Compares binary data of 2 arrays and throws if they aren't the same.
+ * Throws on mismatch, does nothing on match.
+ *
+ * @param arr1 The first array to compare
+ * @param arr2 The second array to compare
+ */
+function compareBinaryData(arr1, arr2) {
+  Assert.equal(arr1.length, arr2.length);
+  for (let i = 0; i < arr1.length; i++) {
+    if (arr1[i] != arr2[i]) {
+      throw new Error(
+        `Data differs at index ${i}, arr1: ${arr1[i]}, arr2: ${arr2[i]}`
+      );
+    }
+  }
+}
+
+/**
+ * Reads a file's data and returns it
+ *
+ * @param file The file to read the data from
+ * @return a byte array for the data in the file.
+ */
+function getBinaryFileData(file) {
+  let fileStream = Cc[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Ci.nsIFileInputStream);
+  // Open as RD_ONLY with default permissions.
+  fileStream.init(file, -1, -1, null);
+
+  // Check the returned size versus the expected size.
+  let stream = Cc["@mozilla.org/binaryinputstream;1"].createInstance(
+    Ci.nsIBinaryInputStream
+  );
+  stream.setInputStream(fileStream);
+  let bytes = stream.readByteArray(stream.available());
+  fileStream.close();
+  return bytes;
+}
+
+/**
+ * Runs each method in the passed in object
+ * Every method of the passed in object that starts with test_ will be ran
+ * The cleanup_per_test method of the object will be run right away, it will be
+ * registered to be the cleanup function, and it will be run between each test.
+ *
+ * @return The number of tests ran
+ */
+function run_tests(obj) {
+  let cleanup_per_test = obj.cleanup_per_test;
+  if (cleanup_per_test === undefined) {
+    cleanup_per_test = function __cleanup_per_test() {};
+  }
+
+  registerCleanupFunction(cleanup_per_test);
+
+  // Make sure there's nothing left over from a preious failed test
+  cleanup_per_test();
+
+  let ranCount = 0;
+  // hasOwnProperty ensures we only see direct properties and not all
+  for (let f in obj) {
+    if (
+      typeof obj[f] === "function" &&
+      obj.hasOwnProperty(f) &&
+      f.toString().indexOf("test_") === 0
+    ) {
+      obj[f]();
+      cleanup_per_test();
+      ranCount++;
+    }
+  }
+  return ranCount;
+}
+
+/**
+ * Creates a MAR file with the content of files.
+ *
+ * @param outMAR  The file where the MAR should be created to
+ * @param dataDir The directory where the relative file paths exist
+ * @param files   The relative file paths of the files to include in the MAR
+ */
+function createMAR(outMAR, dataDir, files) {
+  // You cannot create an empy MAR.
+  Assert.ok(!!files.length);
+
+  // Get an nsIProcess to the signmar binary.
+  let process = Cc["@mozilla.org/process/util;1"].createInstance(Ci.nsIProcess);
+  let signmarBin = do_get_file("signmar" + BIN_SUFFIX);
+
+  // Make sure the signmar binary exists and is an executable.
+  Assert.ok(signmarBin.exists());
+  Assert.ok(signmarBin.isExecutable());
+
+  // Ensure on non Windows platforms we encode the same permissions
+  // as the refernence MARs contain.  On Windows this is also safe.
+  // The reference MAR files have permissions of 0o664, so in case
+  // someone is running these tests locally with another permission
+  // (perhaps 0o777), make sure that we encode them as 0o664.
+  for (let filePath of files) {
+    let f = dataDir.clone();
+    f.append(filePath);
+    f.permissions = 0o664;
+  }
+
+  // Setup the command line arguments to create the MAR.
+  let args = [
+    "-C",
+    dataDir.path,
+    "-H",
+    "@MAR_CHANNEL_ID@",
+    "-V",
+    "13.0a1",
+    "-c",
+    outMAR.path,
+  ];
+  args = args.concat(files);
+
+  info("Running: " + signmarBin.path + " " + args.join(" "));
+  process.init(signmarBin);
+  process.run(true, args, args.length);
+
+  // Verify signmar returned 0 for success.
+  Assert.equal(process.exitValue, 0);
+
+  // Verify the out MAR file actually exists.
+  Assert.ok(outMAR.exists());
+}
+
+/**
+ * Extracts a MAR file to the specified output directory.
+ *
+ * @param mar     The MAR file that should be matched
+ * @param dataDir The directory to extract to
+ */
+function extractMAR(mar, dataDir) {
+  // Get an nsIProcess to the signmar binary.
+  let process = Cc["@mozilla.org/process/util;1"].createInstance(Ci.nsIProcess);
+  let signmarBin = do_get_file("signmar" + BIN_SUFFIX);
+
+  // Make sure the signmar binary exists and is an executable.
+  Assert.ok(signmarBin.exists());
+  Assert.ok(signmarBin.isExecutable());
+
+  // Setup the command line arguments to extract the MAR.
+  let args = ["-C", dataDir.path, "-x", mar.path];
+
+  info("Running: " + signmarBin.path + " " + args.join(" "));
+  process.init(signmarBin);
+  process.run(true, args, args.length);
+
+  return process.exitValue;
+}
diff --git a/modules/libmar/tests/unit/test_create.js b/modules/libmar/tests/unit/test_create.js
new file mode 100644
index 0000000000..224364b419
--- /dev/null
+++ b/modules/libmar/tests/unit/test_create.js
@@ -0,0 +1,112 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function run_test() {
+  /**
+   * Creates MAR from the passed files, compares it to the reference MAR.
+   *
+   * @param refMARFileName The name of the MAR file that should match
+   * @param files          The files that should go in the created MAR
+   * @param checkNoMAR     If true return an error if a file already exists
+   */
+  function run_one_test(refMARFileName, files, checkNoMAR) {
+    if (checkNoMAR === undefined) {
+      checkNoMAR = true;
+    }
+
+    // Ensure the MAR we will create doesn't already exist.
+    let outMAR = tempDir.clone();
+    outMAR.append("out.mar");
+    if (checkNoMAR) {
+      Assert.ok(!outMAR.exists());
+    }
+
+    // Create the actual MAR file.
+    createMAR(outMAR, do_get_file("data"), files);
+
+    // Get the reference MAR data.
+    let refMAR = do_get_file("data/" + refMARFileName);
+    let refMARData = getBinaryFileData(refMAR);
+
+    // Verify the data of the MAR is what it should be.
+    let outMARData = getBinaryFileData(outMAR);
+    if (mozinfo.os != "win") {
+      // Modify the array index that contains the file permission in this mar so
+      // the comparison succeeds. This value is only changed when the value is
+      // the expected value on non-Windows platforms since the MAR files are
+      // created on Windows. This makes it possible to use the same MAR files for
+      // all platforms.
+      switch (refMARFileName) {
+        case "0_sized.mar":
+          if (outMARData[143] == 180) {
+            outMARData[143] = 182;
+          }
+          break;
+        case "1_byte.mar":
+          if (outMARData[144] == 180) {
+            outMARData[144] = 182;
+          }
+          break;
+        case "binary_data.mar":
+          if (outMARData[655] == 180) {
+            outMARData[655] = 182;
+          }
+          break;
+        case "multiple_file.mar":
+          if (outMARData[656] == 180) {
+            outMARData[656] = 182;
+          }
+          if (outMARData[681] == 180) {
+            outMARData[681] = 182;
+          }
+          if (outMARData[705] == 180) {
+            outMARData[705] = 182;
+          }
+      }
+    }
+    compareBinaryData(outMARData, refMARData);
+  }
+
+  // Define the unit tests to run.
+  let tests = {
+    // Test creating a MAR file with a 0 byte file.
+    test_zero_sized: function _test_zero_sized() {
+      return run_one_test("0_sized.mar", ["0_sized_file"]);
+    },
+    // Test creating a MAR file with a 1 byte file.
+    test_one_byte: function _test_one_byte() {
+      return run_one_test("1_byte.mar", ["1_byte_file"]);
+    },
+    // Test creating a MAR file with binary data.
+    test_binary_data: function _test_binary_data() {
+      return run_one_test("binary_data.mar", ["binary_data_file"]);
+    },
+    // Test creating a MAR file with multiple files inside of it.
+    test_multiple_file: function _test_multiple_file() {
+      return run_one_test("multiple_file.mar", [
+        "0_sized_file",
+        "1_byte_file",
+        "binary_data_file",
+      ]);
+    },
+    // Test creating a MAR file on top of a different one that already exists
+    // at the location the new one will be created at.
+    test_overwrite_already_exists: function _test_overwrite_already_exists() {
+      let differentFile = do_get_file("data/1_byte.mar");
+      let outMARDir = tempDir.clone();
+      differentFile.copyTo(outMARDir, "out.mar");
+      return run_one_test("binary_data.mar", ["binary_data_file"], false);
+    },
+    // Between each test make sure the out MAR does not exist.
+    cleanup_per_test: function _cleanup_per_test() {
+      let outMAR = tempDir.clone();
+      outMAR.append("out.mar");
+      if (outMAR.exists()) {
+        outMAR.remove(false);
+      }
+    },
+  };
+
+  // Run all the tests
+  Assert.equal(run_tests(tests), Object.keys(tests).length - 1);
+}
diff --git a/modules/libmar/tests/unit/test_extract.js b/modules/libmar/tests/unit/test_extract.js
new file mode 100644
index 0000000000..46cbbcbbee
--- /dev/null
+++ b/modules/libmar/tests/unit/test_extract.js
@@ -0,0 +1,147 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function run_test() {
+  /**
+   * Extracts a MAR and makes sure each file matches the reference files.
+   *
+   * @param marFileName The name of the MAR file to extract
+   * @param files       The files that the extracted MAR should contain
+   */
+  function extract_and_compare(marFileName, files) {
+    // Get the MAR file that we will be extracting
+    let mar = do_get_file("data/" + marFileName);
+
+    // Get the path that we will extract to
+    let outDir = tempDir.clone();
+    outDir.append("out");
+    Assert.ok(!outDir.exists());
+    outDir.create(Ci.nsIFile.DIRECTORY_TYPE, 0o777);
+
+    // Get the ref files and the files that will be extracted.
+    let outFiles = [];
+    let refFiles = [];
+    for (let i = 0; i < files.length; i++) {
+      let outFile = outDir.clone();
+      outFile.append(files[i]);
+      Assert.ok(!outFile.exists());
+
+      outFiles.push(outFile);
+      refFiles.push(do_get_file("data/" + files[i]));
+    }
+
+    // Extract the MAR contents to ./out dir and verify 0 for success.
+    Assert.equal(extractMAR(mar, outDir), 0);
+
+    // Compare to make sure the extracted files are the same.
+    for (let i = 0; i < files.length; i++) {
+      Assert.ok(outFiles[i].exists());
+      let refFileData = getBinaryFileData(refFiles[i]);
+      let outFileData = getBinaryFileData(outFiles[i]);
+      compareBinaryData(refFileData, outFileData);
+    }
+  }
+
+  /**
+   * Attempts to extract a MAR and expects a failure
+   *
+   * @param marFileName The name of the MAR file to extract
+   */
+  function extract_and_fail(marFileName) {
+    // Get the MAR file that we will be extracting
+    let mar = do_get_file("data/" + marFileName);
+
+    // Get the path that we will extract to
+    let outDir = tempDir.clone();
+    outDir.append("out");
+    Assert.ok(!outDir.exists());
+    outDir.create(Ci.nsIFile.DIRECTORY_TYPE, 0o777);
+
+    // Extract the MAR contents to ./out dir and verify -1 (255 from the
+    // nsIprocess) for failure
+    Assert.equal(extractMAR(mar, outDir), 1);
+  }
+
+  // Define the unit tests to run.
+  let tests = {
+    // Test extracting a MAR file with a 0 byte file.
+    test_zero_sized: function _test_zero_sized() {
+      return extract_and_compare("0_sized.mar", ["0_sized_file"]);
+    },
+    // Test extracting a MAR file with a 1 byte file.
+    test_one_byte: function _test_one_byte() {
+      return extract_and_compare("1_byte.mar", ["1_byte_file"]);
+    },
+    // Test extracting a MAR file with binary data.
+    test_binary_data: function _test_binary_data() {
+      return extract_and_compare("binary_data.mar", ["binary_data_file"]);
+    },
+    // Test extracting a MAR without a product information block (PIB) which
+    // contains binary data.
+    test_no_pib: function _test_no_pib() {
+      return extract_and_compare("no_pib.mar", ["binary_data_file"]);
+    },
+    // Test extracting a MAR without a product information block (PIB) that is
+    // signed and which contains binary data.
+    test_no_pib_signed: function _test_no_pib_signed() {
+      return extract_and_compare("signed_no_pib.mar", ["binary_data_file"]);
+    },
+    // Test extracting a MAR with a product information block (PIB) that is
+    // signed and which contains binary data.
+    test_pib_signed: function _test_pib_signed() {
+      return extract_and_compare("signed_pib.mar", ["binary_data_file"]);
+    },
+    // Test extracting a MAR file with multiple files inside of it.
+    test_multiple_file: function _test_multiple_file() {
+      return extract_and_compare("multiple_file.mar", [
+        "0_sized_file",
+        "1_byte_file",
+        "binary_data_file",
+      ]);
+    },
+    // Test collision detection where file A + B are the same offset
+    test_collision_same_offset: function test_collision_same_offset() {
+      return extract_and_fail("manipulated_same_offset.mar");
+    },
+    // Test collision detection where file A's indexes are a subset of file B's
+    test_collision_is_contained: function test_collision_is_contained() {
+      return extract_and_fail("manipulated_is_container.mar");
+    },
+    // Test collision detection where file B's indexes are a subset of file A's
+    test_collision_contained_by: function test_collision_contained_by() {
+      return extract_and_fail("manipulated_is_contained.mar");
+    },
+    // Test collision detection where file A ends in file B's indexes
+    test_collision_a_onto_b: function test_collision_a_onto_b() {
+      return extract_and_fail("manipulated_frontend_collision.mar");
+    },
+    // Test collision detection where file B ends in file A's indexes
+    test_collsion_b_onto_a: function test_collsion_b_onto_a() {
+      return extract_and_fail("manipulated_backend_collision.mar");
+    },
+    // Test collision detection where file C shares indexes with both file A & B
+    test_collision_multiple: function test_collision_multiple() {
+      return extract_and_fail("manipulated_multiple_collision.mar");
+    },
+    // Test collision detection where A is the last file in the list
+    test_collision_last: function test_collision_multiple_last() {
+      return extract_and_fail("manipulated_multiple_collision_last.mar");
+    },
+    // Test collision detection where A is the first file in the list
+    test_collision_first: function test_collision_multiple_first() {
+      return extract_and_fail("manipulated_multiple_collision_first.mar");
+    },
+    // Between each test make sure the out directory and its subfiles do
+    // not exist.
+    cleanup_per_test: function _cleanup_per_test() {
+      let outDir = tempDir.clone();
+      outDir.append("out");
+      if (outDir.exists()) {
+        outDir.remove(true);
+      }
+    },
+  };
+
+  // Run all the tests
+  Assert.equal(run_tests(tests), Object.keys(tests).length - 1);
+}
diff --git a/modules/libmar/tests/unit/test_sign_verify.js b/modules/libmar/tests/unit/test_sign_verify.js
new file mode 100644
index 0000000000..20f0d691ac
--- /dev/null
+++ b/modules/libmar/tests/unit/test_sign_verify.js
@@ -0,0 +1,591 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function run_test() {
+  /**
+   * Signs a MAR file.
+   *
+   * @param inMAR The MAR file that should be signed
+   * @param outMAR The MAR file to create
+   */
+  function signMAR(inMAR, outMAR, certs, wantSuccess, useShortHandCmdLine) {
+    // Get a process to the signmar binary from the dist/bin directory.
+    let process = Cc["@mozilla.org/process/util;1"].createInstance(
+      Ci.nsIProcess
+    );
+    let signmarBin = do_get_file("signmar" + BIN_SUFFIX);
+
+    // Make sure the signmar binary exists and is an executable.
+    Assert.ok(signmarBin.exists());
+    Assert.ok(signmarBin.isExecutable());
+
+    // Setup the command line arguments to sign the MAR.
+    let NSSConfigDir = do_get_file("data");
+    let args = ["-d", NSSConfigDir.path];
+    if (certs.length == 1 && useShortHandCmdLine) {
+      args.push("-n", certs[0]);
+    } else {
+      for (let i = 0; i < certs.length; i++) {
+        args.push("-n" + i, certs[i]);
+      }
+    }
+    args.push("-s", inMAR.path, outMAR.path);
+
+    let exitValue;
+    process.init(signmarBin);
+    try {
+      process.run(true, args, args.length);
+      exitValue = process.exitValue;
+    } catch (e) {
+      // On Windows negative return value throws an exception
+      exitValue = -1;
+    }
+
+    // Verify signmar returned 0 for success.
+    if (wantSuccess) {
+      Assert.equal(exitValue, 0);
+    } else {
+      Assert.notEqual(exitValue, 0);
+    }
+  }
+
+  /**
+   * Extract a MAR signature.
+   *
+   * @param inMAR        The MAR file who's signature should be extracted
+   * @param sigIndex     The index of the signature to extract
+   * @param extractedSig The file where the extracted signature will be stored
+   * @param wantSuccess  True if a successful signmar return code is desired
+   */
+  function extractMARSignature(inMAR, sigIndex, extractedSig, wantSuccess) {
+    // Get a process to the signmar binary from the dist/bin directory.
+    let process = Cc["@mozilla.org/process/util;1"].createInstance(
+      Ci.nsIProcess
+    );
+    let signmarBin = do_get_file("signmar" + BIN_SUFFIX);
+
+    // Make sure the signmar binary exists and is an executable.
+    Assert.ok(signmarBin.exists());
+    Assert.ok(signmarBin.isExecutable());
+
+    // Setup the command line arguments to extract the signature in the MAR.
+    let args = ["-n" + sigIndex, "-X", inMAR.path, extractedSig.path];
+
+    let exitValue;
+    process.init(signmarBin);
+    try {
+      process.run(true, args, args.length);
+      exitValue = process.exitValue;
+    } catch (e) {
+      // On Windows negative return value throws an exception
+      exitValue = -1;
+    }
+
+    // Verify signmar returned 0 for success.
+    if (wantSuccess) {
+      Assert.equal(exitValue, 0);
+    } else {
+      Assert.notEqual(exitValue, 0);
+    }
+  }
+
+  /**
+   * Import a MAR signature.
+   *
+   * @param inMAR        The MAR file who's signature should be imported to
+   * @param sigIndex     The index of the signature to import to
+   * @param sigFile      The file where the base64 signature exists
+   * @param outMAR       The same as inMAR but with the specified signature
+   *                     swapped at the specified index.
+   * @param wantSuccess  True if a successful signmar return code is desired
+   */
+  function importMARSignature(inMAR, sigIndex, sigFile, outMAR, wantSuccess) {
+    // Get a process to the signmar binary from the dist/bin directory.
+    let process = Cc["@mozilla.org/process/util;1"].createInstance(
+      Ci.nsIProcess
+    );
+    let signmarBin = do_get_file("signmar" + BIN_SUFFIX);
+
+    // Make sure the signmar binary exists and is an executable.
+    Assert.ok(signmarBin.exists());
+    Assert.ok(signmarBin.isExecutable());
+
+    // Setup the command line arguments to import the signature in the MAR.
+    let args = ["-n" + sigIndex, "-I", inMAR.path, sigFile.path, outMAR.path];
+
+    let exitValue;
+    process.init(signmarBin);
+    try {
+      process.run(true, args, args.length);
+      exitValue = process.exitValue;
+    } catch (e) {
+      // On Windows negative return value throws an exception
+      exitValue = -1;
+    }
+
+    // Verify signmar returned 0 for success.
+    if (wantSuccess) {
+      Assert.equal(exitValue, 0);
+    } else {
+      Assert.notEqual(exitValue, 0);
+    }
+  }
+
+  /**
+   * Verifies a MAR file.
+   *
+   * @param signedMAR Verifies a MAR file
+   */
+  function verifyMAR(signedMAR, wantSuccess, certs, useShortHandCmdLine) {
+    // Get a process to the signmar binary from the dist/bin directory.
+    let process = Cc["@mozilla.org/process/util;1"].createInstance(
+      Ci.nsIProcess
+    );
+    let signmarBin = do_get_file("signmar" + BIN_SUFFIX);
+
+    // Make sure the signmar binary exists and is an executable.
+    Assert.ok(signmarBin.exists());
+    Assert.ok(signmarBin.isExecutable());
+
+    // Will reference the arguments to use for verification in signmar
+    let args = [];
+
+    // Setup the command line arguments to create the MAR.
+    // Windows & Mac vs. Linux/... have different command line for verification
+    // since on Windows we verify with CryptoAPI, on Mac with Security
+    // Transforms or CDSA/CSSM and on all other platforms we verify with NSS. So
+    // on Windows and Mac we use an exported DER file and on other platforms we
+    // use the NSS config db.
+    if (mozinfo.os == "win" || mozinfo.os == "mac") {
+      if (certs.length == 1 && useShortHandCmdLine) {
+        args.push("-D", "data/" + certs[0] + ".der");
+      } else {
+        for (let i = 0; i < certs.length; i++) {
+          args.push("-D" + i, "data/" + certs[i] + ".der");
+        }
+      }
+    } else {
+      let NSSConfigDir = do_get_file("data");
+      args = ["-d", NSSConfigDir.path];
+      if (certs.length == 1 && useShortHandCmdLine) {
+        args.push("-n", certs[0]);
+      } else {
+        for (let i = 0; i < certs.length; i++) {
+          args.push("-n" + i, certs[i]);
+        }
+      }
+    }
+    args.push("-v", signedMAR.path);
+
+    let exitValue;
+    process.init(signmarBin);
+    try {
+      // We put this in a try block because nsIProcess doesn't like -1 returns
+      process.run(true, args, args.length);
+      exitValue = process.exitValue;
+    } catch (e) {
+      // On Windows negative return value throws an exception
+      exitValue = -1;
+    }
+
+    // Verify signmar returned 0 for success.
+    if (wantSuccess) {
+      Assert.equal(exitValue, 0);
+    } else {
+      Assert.notEqual(exitValue, 0);
+    }
+  }
+
+  /**
+   * Strips a MAR signature.
+   *
+   * @param signedMAR The MAR file that should be signed
+   * @param outMAR The MAR file to write to with signature stripped
+   */
+  function stripMARSignature(signedMAR, outMAR, wantSuccess) {
+    // Get a process to the signmar binary from the dist/bin directory.
+    let process = Cc["@mozilla.org/process/util;1"].createInstance(
+      Ci.nsIProcess
+    );
+    let signmarBin = do_get_file("signmar" + BIN_SUFFIX);
+
+    // Make sure the signmar binary exists and is an executable.
+    Assert.ok(signmarBin.exists());
+    Assert.ok(signmarBin.isExecutable());
+
+    // Setup the command line arguments to create the MAR.
+    let args = ["-r", signedMAR.path, outMAR.path];
+
+    let exitValue;
+    process.init(signmarBin);
+    try {
+      process.run(true, args, args.length);
+      exitValue = process.exitValue;
+    } catch (e) {
+      // On Windows negative return value throws an exception
+      exitValue = -1;
+    }
+
+    // Verify signmar returned 0 for success.
+    if (wantSuccess) {
+      Assert.equal(exitValue, 0);
+    } else {
+      Assert.notEqual(exitValue, 0);
+    }
+  }
+
+  function cleanup() {
+    let outMAR = tempDir.clone();
+    outMAR.append("signed_out.mar");
+    if (outMAR.exists()) {
+      outMAR.remove(false);
+    }
+    outMAR = tempDir.clone();
+    outMAR.append("multiple_signed_out.mar");
+    if (outMAR.exists()) {
+      outMAR.remove(false);
+    }
+    outMAR = tempDir.clone();
+    outMAR.append("out.mar");
+    if (outMAR.exists()) {
+      outMAR.remove(false);
+    }
+
+    let outDir = tempDir.clone();
+    outDir.append("out");
+    if (outDir.exists()) {
+      outDir.remove(true);
+    }
+  }
+
+  const wantFailure = false;
+  const wantSuccess = true;
+  // Define the unit tests to run.
+  let tests = {
+    // Test signing a MAR file with a single signature
+    test_sign_single: function _test_sign_single() {
+      let inMAR = do_get_file("data/binary_data.mar");
+      let outMAR = tempDir.clone();
+      outMAR.append("signed_out.mar");
+      if (outMAR.exists()) {
+        outMAR.remove(false);
+      }
+      signMAR(inMAR, outMAR, ["mycert"], wantSuccess, true);
+      Assert.ok(outMAR.exists());
+      let outMARData = getBinaryFileData(outMAR);
+      let refMAR = do_get_file("data/signed_pib.mar");
+      let refMARData = getBinaryFileData(refMAR);
+      compareBinaryData(outMARData, refMARData);
+    },
+    // Test signing a MAR file with multiple signatures
+    test_sign_multiple: function _test_sign_multiple() {
+      let inMAR = do_get_file("data/binary_data.mar");
+      let outMAR = tempDir.clone();
+      outMAR.append("multiple_signed_out.mar");
+      if (outMAR.exists()) {
+        outMAR.remove(false);
+      }
+      Assert.ok(!outMAR.exists());
+      signMAR(
+        inMAR,
+        outMAR,
+        ["mycert", "mycert2", "mycert3"],
+        wantSuccess,
+        true
+      );
+      Assert.ok(outMAR.exists());
+      let outMARData = getBinaryFileData(outMAR);
+      let refMAR = do_get_file("data/multiple_signed_pib.mar");
+      let refMARData = getBinaryFileData(refMAR);
+      compareBinaryData(outMARData, refMARData);
+    },
+    // Test verifying a signed MAR file
+    test_verify_single: function _test_verify_single() {
+      let signedMAR = do_get_file("data/signed_pib.mar");
+      verifyMAR(signedMAR, wantSuccess, ["mycert"], true);
+      verifyMAR(signedMAR, wantSuccess, ["mycert"], false);
+    },
+    // Test verifying a signed MAR file with too many certs fails.
+    // Or if you want to look at it another way, One mycert signature
+    // is missing.
+    test_verify_single_too_many_certs:
+      function _test_verify_single_too_many_certs() {
+        let signedMAR = do_get_file("data/signed_pib.mar");
+        verifyMAR(signedMAR, wantFailure, ["mycert", "mycert"], true);
+        verifyMAR(signedMAR, wantFailure, ["mycert", "mycert"], false);
+      },
+    // Test verifying a signed MAR file fails when using a wrong cert
+    test_verify_single_wrong_cert: function _test_verify_single_wrong_cert() {
+      let signedMAR = do_get_file("data/signed_pib.mar");
+      verifyMAR(signedMAR, wantFailure, ["mycert2"], true);
+      verifyMAR(signedMAR, wantFailure, ["mycert2"], false);
+    },
+    // Test verifying a signed MAR file with multiple signatures
+    test_verify_multiple: function _test_verify_multiple() {
+      let signedMAR = do_get_file("data/multiple_signed_pib.mar");
+      verifyMAR(signedMAR, wantSuccess, ["mycert", "mycert2", "mycert3"]);
+    },
+    // Test verifying an unsigned MAR file fails
+    test_verify_unsigned_mar_file_fails:
+      function _test_verify_unsigned_mar_file_fails() {
+        let unsignedMAR = do_get_file("data/binary_data.mar");
+        verifyMAR(unsignedMAR, wantFailure, ["mycert", "mycert2", "mycert3"]);
+      },
+    // Test verifying a signed MAR file with the same signature multiple
+    // times fails.  The input MAR has: mycert, mycert2, mycert3.
+    // we're checking to make sure the number of verified signatures
+    // is only 1 and not 3.  Each signature should be verified once.
+    test_verify_multiple_same_cert: function _test_verify_multiple_same_cert() {
+      let signedMAR = do_get_file("data/multiple_signed_pib.mar");
+      verifyMAR(signedMAR, wantFailure, ["mycert", "mycert", "mycert"]);
+    },
+    // Test verifying a signed MAR file with the correct signatures but in
+    // a different order fails
+    test_verify_multiple_wrong_order:
+      function _test_verify_multiple_wrong_order() {
+        let signedMAR = do_get_file("data/multiple_signed_pib.mar");
+        verifyMAR(signedMAR, wantSuccess, ["mycert", "mycert2", "mycert3"]);
+        verifyMAR(signedMAR, wantFailure, ["mycert", "mycert3", "mycert2"]);
+        verifyMAR(signedMAR, wantFailure, ["mycert2", "mycert", "mycert3"]);
+        verifyMAR(signedMAR, wantFailure, ["mycert2", "mycert3", "mycert"]);
+        verifyMAR(signedMAR, wantFailure, ["mycert3", "mycert", "mycert2"]);
+        verifyMAR(signedMAR, wantFailure, ["mycert3", "mycert2", "mycert"]);
+      },
+    // Test verifying a signed MAR file without a PIB
+    test_verify_no_pib: function _test_verify_no_pib() {
+      let signedMAR = do_get_file("data/signed_no_pib.mar");
+      verifyMAR(signedMAR, wantSuccess, ["mycert"], true);
+      verifyMAR(signedMAR, wantSuccess, ["mycert"], false);
+    },
+    // Test verifying a signed MAR file with multiple signatures without a PIB
+    test_verify_no_pib_multiple: function _test_verify_no_pib_multiple() {
+      let signedMAR = do_get_file("data/multiple_signed_no_pib.mar");
+      verifyMAR(signedMAR, wantSuccess, ["mycert", "mycert2", "mycert3"]);
+    },
+    // Test verifying a crafted MAR file where the attacker tried to adjust
+    // the version number manually.
+    test_crafted_mar: function _test_crafted_mar() {
+      let signedBadMAR = do_get_file("data/manipulated_signed.mar");
+      verifyMAR(signedBadMAR, wantFailure, ["mycert"], true);
+      verifyMAR(signedBadMAR, wantFailure, ["mycert"], false);
+    },
+    // Test verifying a file that doesn't exist fails
+    test_bad_path_verify_fails: function _test_bad_path_verify_fails() {
+      let noMAR = do_get_file("data/does_not_exist.mar", true);
+      Assert.ok(!noMAR.exists());
+      verifyMAR(noMAR, wantFailure, ["mycert"], true);
+    },
+    // Test to make sure a stripped MAR is the same as the original MAR
+    test_strip_signature: function _test_strip_signature() {
+      let originalMAR = do_get_file("data/binary_data.mar");
+      let signedMAR = tempDir.clone();
+      signedMAR.append("signed_out.mar");
+      let outMAR = tempDir.clone();
+      outMAR.append("out.mar", true);
+      stripMARSignature(signedMAR, outMAR, wantSuccess);
+
+      // Verify that the stripped MAR matches the original data MAR exactly
+      let outMARData = getBinaryFileData(outMAR);
+      let originalMARData = getBinaryFileData(originalMAR);
+      compareBinaryData(outMARData, originalMARData);
+    },
+    // Test to make sure a stripped multi-signature-MAR is the same as the original MAR
+    test_strip_multiple_signatures: function _test_strip_multiple_signatures() {
+      let originalMAR = do_get_file("data/binary_data.mar");
+      let signedMAR = tempDir.clone();
+      signedMAR.append("multiple_signed_out.mar");
+      let outMAR = tempDir.clone();
+      outMAR.append("out.mar");
+      stripMARSignature(signedMAR, outMAR, wantSuccess);
+
+      // Verify that the stripped MAR matches the original data MAR exactly
+      let outMARData = getBinaryFileData(outMAR);
+      let originalMARData = getBinaryFileData(originalMAR);
+      compareBinaryData(outMARData, originalMARData);
+    },
+    // Test extracting the first signature in a MAR that has only a single signature
+    test_extract_sig_single: function _test_extract_sig_single() {
+      let inMAR = do_get_file("data/signed_pib.mar");
+      let extractedSig = do_get_file("extracted_signature", true);
+      if (extractedSig.exists()) {
+        extractedSig.remove(false);
+      }
+      extractMARSignature(inMAR, 0, extractedSig, wantSuccess);
+      Assert.ok(extractedSig.exists());
+
+      let referenceSig = do_get_file("data/signed_pib_mar.signature.0");
+      compareBinaryData(extractedSig, referenceSig);
+    },
+    // Test extracting the all signatures in a multi signature MAR
+    // The input MAR has 3 signatures.
+    test_extract_sig_multi: function _test_extract_sig_multi() {
+      for (let i = 0; i < 3; i++) {
+        let inMAR = do_get_file("data/multiple_signed_pib.mar");
+        let extractedSig = do_get_file("extracted_signature", true);
+        if (extractedSig.exists()) {
+          extractedSig.remove(false);
+        }
+        extractMARSignature(inMAR, i, extractedSig, wantSuccess);
+        Assert.ok(extractedSig.exists());
+
+        let referenceSig = do_get_file("data/multiple_signed_pib_mar.sig." + i);
+        compareBinaryData(extractedSig, referenceSig);
+      }
+    },
+    // Test extracting a signature that is out of range fails
+    test_extract_sig_out_of_range: function _test_extract_sig_out_of_range() {
+      let inMAR = do_get_file("data/signed_pib.mar");
+      let extractedSig = do_get_file("extracted_signature", true);
+      if (extractedSig.exists()) {
+        extractedSig.remove(false);
+      }
+      const outOfBoundsIndex = 5;
+      extractMARSignature(inMAR, outOfBoundsIndex, extractedSig, wantFailure);
+      Assert.ok(!extractedSig.exists());
+    },
+    // Test signing a file that doesn't exist fails
+    test_bad_path_sign_fails: function _test_bad_path_sign_fails() {
+      let inMAR = do_get_file("data/does_not_exist.mar", true);
+      let outMAR = tempDir.clone();
+      outMAR.append("signed_out.mar");
+      Assert.ok(!inMAR.exists());
+      signMAR(inMAR, outMAR, ["mycert"], wantFailure, true);
+      Assert.ok(!outMAR.exists());
+    },
+    // Test verifying only a subset of the signatures fails.
+    // The input MAR has: mycert, mycert2, mycert3.
+    // We're only verifying 2 of the 3 signatures and that should fail.
+    test_verify_multiple_subset: function _test_verify_multiple_subset() {
+      let signedMAR = do_get_file("data/multiple_signed_pib.mar");
+      verifyMAR(signedMAR, wantFailure, ["mycert", "mycert2"]);
+    },
+    // Test importing the first signature in a MAR that has only
+    // a single signature
+    test_import_sig_single: function _test_import_sig_single() {
+      // Make sure the input MAR was signed with mycert only
+      let inMAR = do_get_file("data/signed_pib.mar");
+      verifyMAR(inMAR, wantSuccess, ["mycert"], false);
+      verifyMAR(inMAR, wantFailure, ["mycert2"], false);
+      verifyMAR(inMAR, wantFailure, ["mycert3"], false);
+
+      // Get the signature file for this MAR signed with the key from mycert2
+      let sigFile = do_get_file("data/signed_pib_mar.signature.mycert2");
+      Assert.ok(sigFile.exists());
+      let outMAR = tempDir.clone();
+      outMAR.append("sigchanged_signed_pib.mar");
+      if (outMAR.exists()) {
+        outMAR.remove(false);
+      }
+
+      // Run the import operation
+      importMARSignature(inMAR, 0, sigFile, outMAR, wantSuccess);
+
+      // Verify we have a new MAR file, that mycert no longer verifies and that,
+      // mycert2 does verify
+      Assert.ok(outMAR.exists());
+      verifyMAR(outMAR, wantFailure, ["mycert"], false);
+      verifyMAR(outMAR, wantSuccess, ["mycert2"], false);
+      verifyMAR(outMAR, wantFailure, ["mycert3"], false);
+
+      // Compare the binary data to something that was signed originally
+      // with the private key from mycert2
+      let refMAR = do_get_file("data/signed_pib_with_mycert2.mar");
+      Assert.ok(refMAR.exists());
+      let refMARData = getBinaryFileData(refMAR);
+      let outMARData = getBinaryFileData(outMAR);
+      compareBinaryData(outMARData, refMARData);
+    },
+    // Test importing a signature that doesn't belong to the file
+    // fails to verify.
+    test_import_wrong_sig: function _test_import_wrong_sig() {
+      // Make sure the input MAR was signed with mycert only
+      let inMAR = do_get_file("data/signed_pib.mar");
+      verifyMAR(inMAR, wantSuccess, ["mycert"], false);
+      verifyMAR(inMAR, wantFailure, ["mycert2"], false);
+      verifyMAR(inMAR, wantFailure, ["mycert3"], false);
+
+      // Get the signature file for multiple_signed_pib.mar signed with the
+      // key from mycert
+      let sigFile = do_get_file("data/multiple_signed_pib_mar.sig.0");
+      Assert.ok(sigFile.exists());
+      let outMAR = tempDir.clone();
+      outMAR.append("sigchanged_signed_pib.mar");
+      if (outMAR.exists()) {
+        outMAR.remove(false);
+      }
+
+      // Run the import operation
+      importMARSignature(inMAR, 0, sigFile, outMAR, wantSuccess);
+
+      // Verify we have a new MAR file and that the mar file fails to verify
+      // when using a signature for another mar file.
+      Assert.ok(outMAR.exists());
+      verifyMAR(outMAR, wantFailure, ["mycert"], false);
+      verifyMAR(outMAR, wantFailure, ["mycert2"], false);
+      verifyMAR(outMAR, wantFailure, ["mycert3"], false);
+    },
+    // Test importing to the second signature in a MAR that has multiple
+    // signature
+    test_import_sig_multiple: function _test_import_sig_multiple() {
+      // Make sure the input MAR was signed with mycert only
+      let inMAR = do_get_file("data/multiple_signed_pib.mar");
+      verifyMAR(inMAR, wantSuccess, ["mycert", "mycert2", "mycert3"], false);
+      verifyMAR(inMAR, wantFailure, ["mycert", "mycert", "mycert3"], false);
+
+      // Get the signature file for this MAR signed with the key from mycert
+      let sigFile = do_get_file("data/multiple_signed_pib_mar.sig.0");
+      Assert.ok(sigFile.exists());
+      let outMAR = tempDir.clone();
+      outMAR.append("sigchanged_signed_pib.mar");
+      if (outMAR.exists()) {
+        outMAR.remove(false);
+      }
+
+      // Run the import operation
+      const secondSigPos = 1;
+      importMARSignature(inMAR, secondSigPos, sigFile, outMAR, wantSuccess);
+
+      // Verify we have a new MAR file and that mycert no longer verifies
+      // and that mycert2 does verify
+      Assert.ok(outMAR.exists());
+      verifyMAR(outMAR, wantSuccess, ["mycert", "mycert", "mycert3"], false);
+      verifyMAR(outMAR, wantFailure, ["mycert", "mycert2", "mycert3"], false);
+
+      // Compare the binary data to something that was signed originally
+      // with the private keys from mycert, mycert, mycert3
+      let refMAR = do_get_file("data/multiple_signed_pib_2.mar");
+      Assert.ok(refMAR.exists());
+      let refMARData = getBinaryFileData(refMAR);
+      let outMARData = getBinaryFileData(outMAR);
+      compareBinaryData(outMARData, refMARData);
+    },
+    // Test stripping a MAR that doesn't exist fails
+    test_bad_path_strip_fails: function _test_bad_path_strip_fails() {
+      let noMAR = do_get_file("data/does_not_exist.mar", true);
+      Assert.ok(!noMAR.exists());
+      let outMAR = tempDir.clone();
+      outMAR.append("out.mar");
+      stripMARSignature(noMAR, outMAR, wantFailure);
+    },
+    // Test extracting from a bad path fails
+    test_extract_bad_path: function _test_extract_bad_path() {
+      let noMAR = do_get_file("data/does_not_exist.mar", true);
+      let extractedSig = do_get_file("extracted_signature", true);
+      Assert.ok(!noMAR.exists());
+      if (extractedSig.exists()) {
+        extractedSig.remove(false);
+      }
+      extractMARSignature(noMAR, 0, extractedSig, wantFailure);
+      Assert.ok(!extractedSig.exists());
+    },
+    // Between each test make sure the out MAR does not exist.
+    cleanup_per_test: function _cleanup_per_test() {},
+  };
+
+  cleanup();
+
+  // Run all the tests
+  Assert.equal(run_tests(tests), Object.keys(tests).length - 1);
+
+  registerCleanupFunction(cleanup);
+}
diff --git a/modules/libmar/tests/unit/xpcshell.ini b/modules/libmar/tests/unit/xpcshell.ini
new file mode 100644
index 0000000000..c677d46438
--- /dev/null
+++ b/modules/libmar/tests/unit/xpcshell.ini
@@ -0,0 +1,8 @@
+[DEFAULT]
+head = head_libmar.js
+support-files = data/**
+skip-if = os == 'win' && msix # Updates are disabled for MSIX builds
+
+[test_create.js]
+[test_extract.js]
+[test_sign_verify.js]