test: copyright information updates

[notmuch] / test / README

diff --git a/test/README b/test/README
index 86afab5cb91d305e9622330abcadf1a6fc6b53f4..104a120ea28bfb7250243f1d331ed8efd1e99fa0 100644 (file)
--- a/test/README
+++ b/test/README
@@ -6,14 +6,42 @@ When fixing bugs or enhancing notmuch, you are strongly encouraged to
 add tests in this directory to cover what you are trying to fix or
 enhance.
 
 add tests in this directory to cover what you are trying to fix or
 enhance.
 

+Prerequisites
+-------------
+The test system itself requires:
+
+  - bash(1) version 4.0 or newer
+
+Without bash 4.0+ the tests just refuse to run.
+
+Some tests require external dependencies to run. Without them, they
+will be skipped, or (rarely) marked failed. Please install these, so
+that you know if you break anything.
+
+  - GNU tar(1)
+  - dtach(1)
+  - emacs(1)
+  - emacsclient(1)
+  - gdb(1)
+  - gpg(1)
+  - python(1)
+
+If your system lacks these tools or have older, non-upgreable versions
+of these, please (possibly compile and) install these to some other
+path, for example /usr/local/bin or /opt/gnu/bin. Then prepend the
+chosen directory to your PATH before running the tests.
+
+e.g. env PATH=/opt/gnu/bin:$PATH make test
+

 Running Tests
 -------------
 The easiest way to run tests is to say "make test", (or simply run the
 notmuch-test script). Either command will run all available tests.
 
 Alternately, you can run a specific subset of tests by simply invoking
 Running Tests
 -------------
 The easiest way to run tests is to say "make test", (or simply run the
 notmuch-test script). Either command will run all available tests.
 
 Alternately, you can run a specific subset of tests by simply invoking

-one of the executable scripts in this directory, (such as ./search,
-./reply, etc.)
+one of the executable scripts in this directory, (such as ./T*-search.sh,
+./T*-reply.sh, etc). Note that you will probably want "make test-binaries"
+before running individual tests.

 
 The following command-line options are available when running tests:
 
 
 The following command-line options are available when running tests:
 


@@ -41,11 +69,48 @@ The following command-line options are available when running tests:
        As the names depend on the tests' file names, it is safe to
        run the tests with this option in parallel.
 
        As the names depend on the tests' file names, it is safe to
        run the tests with this option in parallel.
 

+--root=<dir>::
+       This runs the testsuites specified under a separate directory.
+       However, caution is advised, as not all tests are maintained
+       with this relocation in mind, so some tests may behave
+       differently.
+
+       Pointing this argument at a tmpfs filesystem can improve the
+       speed of the test suite for some users.
+
+Certain tests require precomputed databases to complete. You can fetch these
+databases with
+
+       make download-test-databases
+
+If you do not download the test databases, the relevant tests will be
+skipped.
+

 When invoking the test suite via "make test" any of the above options
 can be specified as follows:
 
        make test OPTIONS="--verbose"
 
 When invoking the test suite via "make test" any of the above options
 can be specified as follows:
 
        make test OPTIONS="--verbose"
 

+You can choose an emacs binary (and corresponding emacsclient) to run
+the tests in one of the following ways.
+
+       TEST_EMACS=my-emacs TEST_EMACSCLIENT=my-emacsclient make test
+       TEST_EMACS=my-emacs TEST_EMACSCLIENT=my-emacsclient ./T*-emacs.sh
+       make test TEST_EMACS=my-emacs TEST_EMACSCLIENT=my-emacsclient
+
+Some tests may require a c compiler. You can choose the name and flags similarly
+to with emacs, e.g.
+
+     make test TEST_CC=gcc TEST_CFLAGS="-g -O2"
+
+Quiet Execution
+---------------
+
+Normally, when new script starts and when test PASSes you get a message
+printed on screen. This printing can be disabled by setting the
+NOTMUCH_TEST_QUIET variable to a non-null value. Message on test
+failures and skips are still printed.
+

 Skipping Tests
 --------------
 If, for any reason, you need to skip one or more tests, you can do so
 Skipping Tests
 --------------
 If, for any reason, you need to skip one or more tests, you can do so


@@ -66,16 +131,23 @@ Note that some tests in the existing test suite rely on previous test
 items, so you cannot arbitrarily skip any test and expect the
 remaining tests to be unaffected.
 
 items, so you cannot arbitrarily skip any test and expect the
 remaining tests to be unaffected.
 

+Currently we do not consider skipped tests as build failures. For
+maximum robustness, when setting up automated build processes, you
+should explicitely skip tests, rather than relying on notmuch's
+detection of missing prerequisites. In the future we may treat tests
+unable to run because of missing prerequisites, but not explicitely
+skipped by the user, as failures.
+

 Writing Tests
 -------------
 Writing Tests
 -------------

-The test script is written as a shell script.  It should start
-with the standard "#!/bin/bash" with copyright notices, and an
-assignment to variable 'test_description', like this:
+The test script is written as a shell script. It is to be named as
+Tddd-testname.sh where 'ddd' is three digits and 'testname' the "bare"
+name of your test. Tests will be run in order the 'ddd' part determines.

 
 

-       #!/bin/bash
-       #
-       # Copyright (c) 2005 Junio C Hamano
-       #
+The test script should start with the standard "#!/usr/bin/env bash"
+and an assignment to variable 'test_description', like this:
+
+       #!/usr/bin/env bash

 
        test_description='xxx test (option --frotz)
 
 
        test_description='xxx test (option --frotz)
 


@@ -87,7 +159,7 @@ Source 'test-lib.sh'
 After assigning test_description, the test script should source
 test-lib.sh like this:
 
 After assigning test_description, the test script should source
 test-lib.sh like this:
 

-       . ./test-lib.sh
+       . ./test-lib.sh || exit 1

 
 This test harness library does the following things:
 
 
 This test harness library does the following things:
 


@@ -123,20 +195,19 @@ library for your script to use.
    <script>.  If it yields success, test is considered
    successful.  <message> should state what it is testing.
 
    <script>.  If it yields success, test is considered
    successful.  <message> should state what it is testing.
 

- test_expect_failure <message> <script>
-
-   This is NOT the opposite of test_expect_success, but is used
-   to mark a test that demonstrates a known breakage.  Unlike
-   the usual test_expect_success tests, which say "ok" on
-   success and "FAIL" on failure, this will say "FIXED" on
-   success and "still broken" on failure.  Failures from these
-   tests won't cause -i (immediate) to stop.
-

  test_begin_subtest <message>
 
    Set the test description message for a subsequent test_expect_equal
    invocation (see below).
 
  test_begin_subtest <message>
 
    Set the test description message for a subsequent test_expect_equal
    invocation (see below).
 

+ test_subtest_known_broken
+
+   Mark the current test as broken.  Such tests are expected to fail.
+   Unlike the normal tests, which say "PASS" on success and "FAIL" on
+   failure, these will say "FIXED" on success and "BROKEN" on failure.
+   Failures from these tests won't cause -i (immediate) to stop.  A
+   test must call this before any test_expect_* function.
+

  test_expect_equal <output> <expected>
 
    This is an often-used convenience function built on top of
  test_expect_equal <output> <expected>
 
    This is an often-used convenience function built on top of


@@ -147,6 +218,20 @@ library for your script to use.
    will generate a failure and print the difference of the two
    strings.
 
    will generate a failure and print the difference of the two
    strings.
 

+ test_expect_equal_file <file1> <file2>
+
+   Identical to test_expect_equal, except that <file1> and <file2>
+   are files instead of strings.  This is a much more robust method to
+   compare formatted textual information, since it also notices
+   whitespace and closing newline differences.
+
+ test_expect_equal_json <output> <expected>
+
+   Identical to test_expect_equal, except that the two strings are
+   treated as JSON and canonicalized before equality testing.  This is
+   useful to abstract away from whitespace differences in the expected
+   output and that generated by running a notmuch command.
+

  test_debug <script>
 
    This takes a single argument, <script>, and evaluates it only
  test_debug <script>
 
    This takes a single argument, <script>, and evaluates it only


@@ -154,19 +239,39 @@ library for your script to use.
    argument.  This is primarily meant for use during the
    development of a new test script.
 
    argument.  This is primarily meant for use during the
    development of a new test script.
 

+ test_emacs <emacs-lisp-expressions>
+
+   This function executes the provided emacs lisp script within
+   emacs. The script can be a sequence of emacs lisp expressions,
+   (that is, they will be evaluated within a progn form). Emacs
+   stdout and stderr is not available, the common way to get output
+   is to save it to a file. There are some auxiliary functions
+   useful in emacs tests provided in test-lib.el. Do not use `setq'
+   for setting variables in Emacs tests because it affects other
+   tests that may run in the same Emacs instance.  Use `let' instead
+   so the scope of the changed variables is limited to a single test.
+
+ test_emacs_expect_t <emacs-lisp-expressions>
+
+  This function executes the provided emacs lisp script within
+  emacs in a manner similar to 'test_emacs'. The expressions should
+  return the value `t' to indicate that the test has passed. If the
+  test does not return `t' then it is considered failed and all data
+  returned by the test is reported to the tester.
+

  test_done
 
    Your test script must have test_done at the end.  Its purpose
    is to summarize successes and failures in the test script and
    exit with an appropriate error code.
 
  test_done
 
    Your test script must have test_done at the end.  Its purpose
    is to summarize successes and failures in the test script and
    exit with an appropriate error code.
 

-There are also a number of mail-specific functions which are useful in
-writing tests:
+There are also a number of notmuch-specific auxiliary functions and
+variables which are useful in writing tests:

 
   generate_message
 
     Generates a message with an optional template. Most tests will
 
   generate_message
 
     Generates a message with an optional template. Most tests will

-    actually prefere to call add_message. See below.
+    actually prefer to call add_message. See below.

 
   add_message
 
 
   add_message
 


@@ -182,6 +287,31 @@ writing tests:
 
     This function should be called at the beginning of a test file
     when a test needs to operate on a non-empty body of messages. It
 
     This function should be called at the beginning of a test file
     when a test needs to operate on a non-empty body of messages. It

-    will intialize the mail database to a known state of 50 sample
+    will initialize the mail database to a known state of 50 sample

     messages, (culled from the early history of the notmuch mailing
     list).
     messages, (culled from the early history of the notmuch mailing
     list).

+
+  notmuch_counter_reset
+  $notmuch_counter_command
+  notmuch_counter_value
+
+    These allow to count how many times notmuch binary is called.
+    notmuch_counter_reset() function generates a script that counts
+    how many times it is called and resets the counter to zero.  The
+    function sets $notmuch_counter_command variable to the path to the
+    generated script that should be called instead of notmuch to do
+    the counting.  The notmuch_counter_value() function prints the
+    current counter value.
+
+There are also functions which remove various environment-dependent
+values from notmuch output; these are useful to ensure that test
+results remain consistent across different machines.
+
+ notmuch_search_sanitize
+ notmuch_show_sanitize
+ notmuch_show_sanitize_all
+ notmuch_json_show_sanitize
+
+   All these functions should receive the text to be sanitized as the
+   input of a pipe, e.g.
+   output=`notmuch search "..." | notmuch_search_sanitize`