prosody
b4f77a7bf8ab
spec/util_ringbuffer_spec.lua

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spec/util_ringbuffer_spec.lua @ 11942:b4f77a7bf8ab

mod_http_openmetrics: Serve HTTP from global context Makes GET /metrics work regardless of the value of the Host header. This was not possible before 220468f7a103 which added the ability to have global HTTP modules, which was partly why the per-host part was kept while the module lived among the community modules. Another reason was to provide some semblance of security by obscurity by only loading the module on e.g. a 'localhost' VirtualHost or Component. The new IP limits obsoletes this.
author Kim Alvefur <zash@zash.se>
date Thu, 25 Nov 2021 16:57:01 +0100
parent 10960:f84e0e2faae2
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rev   line source
10897
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1 local rb = require "util.ringbuffer";
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2 describe("util.ringbuffer", function ()
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3 describe("#new", function ()
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4 it("has a constructor", function ()
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5 assert.Function(rb.new);
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6 end);
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7 it("can be created", function ()
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8 assert.truthy(rb.new());
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9 end);
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10 it("won't create an empty buffer", function ()
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11 assert.has_error(function ()
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12 rb.new(0);
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13 end);
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14 end);
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15 it("won't create a negatively sized buffer", function ()
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16 assert.has_error(function ()
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17 rb.new(-1);
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18 end);
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19 end);
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20 end);
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21 describe(":write", function ()
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22 local b = rb.new();
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23 it("works", function ()
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24 assert.truthy(b:write("hi"));
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25 end);
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26 end);
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27
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28 describe(":discard", function ()
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29 local b = rb.new();
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30 it("works", function ()
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31 assert.truthy(b:write("hello world"));
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32 assert.truthy(b:discard(6));
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33 assert.equal(5, #b);
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34 assert.equal("world", b:read(5));
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35 end);
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36 end);
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37
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38 describe(":sub", function ()
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39 -- Helper function to compare buffer:sub() with string:sub()
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40 local function test_sub(b, x, y)
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41 local s = b:read(#b, true);
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42 local string_result, buffer_result = s:sub(x, y), b:sub(x, y);
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43 assert.equals(string_result, buffer_result, ("buffer:sub(%d, %s) does not match string:sub()"):format(x, y and ("%d"):format(y) or "nil"));
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44 end
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45
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46 it("works", function ()
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47 local b = rb.new();
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48 assert.truthy(b:write("hello world"));
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49 assert.equals("hello", b:sub(1, 5));
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50 end);
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51
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52 it("supports optional end parameter", function ()
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53 local b = rb.new();
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54 assert.truthy(b:write("hello world"));
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55 assert.equals("hello world", b:sub(1));
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56 assert.equals("world", b:sub(-5));
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57 end);
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58
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59 it("is equivalent to string:sub", function ()
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60 local b = rb.new(6);
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61 assert.truthy(b:write("foobar"));
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62 b:read(3);
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63 b:write("foo");
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64 for i = -13, 13 do
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65 for j = -13, 13 do
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66 test_sub(b, i, j);
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67 end
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68 end
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69 end);
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70 end);
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71
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72 describe(":byte", function ()
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73 -- Helper function to compare buffer:byte() with string:byte()
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74 local function test_byte(b, x, y)
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75 local s = b:read(#b, true);
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76 local string_result, buffer_result = {s:byte(x, y)}, {b:byte(x, y)};
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77 assert.same(string_result, buffer_result, ("buffer:byte(%d, %s) does not match string:byte()"):format(x, y and ("%d"):format(y) or "nil"));
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78 end
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79
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80 it("is equivalent to string:byte", function ()
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81 local b = rb.new(6);
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82 assert.truthy(b:write("foobar"));
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83 b:read(3);
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84 b:write("foo");
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85 test_byte(b, 1);
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86 test_byte(b, 3);
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87 test_byte(b, -1);
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88 test_byte(b, -3);
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89 for i = -13, 13 do
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90 for j = -13, 13 do
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91 test_byte(b, i, j);
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92 end
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93 end
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94 end);
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95
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96 it("works with characters > 127", function ()
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97 local b = rb.new();
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98 b:write(string.char(0, 140));
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99 local r = { b:byte(1, 2) };
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100 assert.same({ 0, 140 }, r);
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101 end);
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102 end);
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103 end);