prosody
af1e3b7d9ea3
spec/util_interpolation_spec.lua

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spec/util_interpolation_spec.lua @ 11064:af1e3b7d9ea3

util.interpolation: Add '~' as the opposite of '&' (render sub-block if falsy) One more magic character consumed!
author Matthew Wild <mwild1@gmail.com>
date Wed, 09 Sep 2020 17:10:33 +0100
parent 10413:604096ce2f82
child 11065:95eb1a981ef6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 local template = [[
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2 {greet!?Hi}, {name?world}!
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3 ]];
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4 local expect1 = [[
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5 Hello, WORLD!
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6 ]];
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7 local expect2 = [[
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8 Hello, world!
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9 ]];
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10 local expect3 = [[
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11 Hi, YOU!
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12 ]];
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13 local template_array = [[
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14 {foo#{idx}. {item}
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15 }]]
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16 local expect_array = [[
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17 1. HELLO
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18 2. WORLD
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19 ]]
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20 local template_func_pipe = [[
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21 {foo|sort#{idx}. {item}
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22 }]]
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23 local expect_func_pipe = [[
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24 1. A
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25 2. B
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26 3. C
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27 4. D
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28 ]]
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29 local template_map = [[
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30 {foo%{idx}: {item!}
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31 }]]
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32 local expect_map = [[
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33 FOO: bar
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34 ]]
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35 local template_not = [[
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36 {thing~Thing is nil}{thing&Thing is not nil}
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37 ]]
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38 local expect_not_true = [[
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39 Thing is not nil
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40 ]]
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41 local expect_not_nil = [[
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42 Thing is nil
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43 ]]
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44 describe("util.interpolation", function ()
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45 it("renders", function ()
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46 local render = require "util.interpolation".new("%b{}", string.upper, { sort = function (t) table.sort(t) return t end });
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47 assert.equal(expect1, render(template, { greet = "Hello", name = "world" }));
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48 assert.equal(expect2, render(template, { greet = "Hello" }));
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49 assert.equal(expect3, render(template, { name = "you" }));
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50 assert.equal(expect_array, render(template_array, { foo = { "Hello", "World" } }));
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51 assert.equal(expect_func_pipe, render(template_func_pipe, { foo = { "c", "a", "d", "b", } }));
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52 -- assert.equal("", render(template_func_pipe, { foo = nil })); -- FIXME
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53 assert.equal(expect_map, render(template_map, { foo = { foo = "bar" } }));
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54 assert.equal(expect_not_true, render(template_not, { thing = true }));
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55 assert.equal(expect_not_nil, render(template_not, { thing = nil }));
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56 end);
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57 end);