prosody
e560f7c691ce
spec/util_iterators_spec.lua

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spec/util_iterators_spec.lua @ 13147:e560f7c691ce

util.sqlite3: Don't cache prepared statements for one-off queries The :execute method is mainly used for one-off queries such as creating tables and indices. There is no need to cache this prepared statement, as those queries are only done on startup. Further, prepared statements can't be reused without being reset, so this was likely broken anyway.
author Kim Alvefur <zash@zash.se>
date Sat, 10 Jun 2023 22:20:26 +0200
parent 12744:e894677359e5
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rev   line source
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1 local iter = require "util.iterators";
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2
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3 describe("util.iterators", function ()
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4 describe("join", function ()
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5 it("should produce a joined iterator", function ()
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6 local expect = { "a", "b", "c", 1, 2, 3 };
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7 local output = {};
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8 for x in iter.join(iter.values({"a", "b", "c"})):append(iter.values({1, 2, 3})) do
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9 table.insert(output, x);
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10 end
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11 assert.same(output, expect);
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12 end);
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13 it("should work with only a single iterator", function ()
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14 local expect = { "a", "b", "c" };
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15 local output = {};
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16 for x in iter.join(iter.values({"a", "b", "c"})) do
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17 table.insert(output, x);
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18 end
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19 assert.same(output, expect);
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20 end);
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21 end);
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22
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23 describe("sorted_pairs", function ()
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24 it("should produce sorted pairs", function ()
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25 local orig = { b = 1, c = 2, a = "foo", d = false };
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26 local n, last_key = 0, nil;
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27 for k, v in iter.sorted_pairs(orig) do
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28 n = n + 1;
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29 if last_key then
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30 assert(k > last_key, "Expected "..k.." > "..last_key)
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31 end
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32 assert.equal(orig[k], v);
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33 last_key = k;
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34 end
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35 assert.equal("d", last_key);
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36 assert.equal(4, n);
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37 end);
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38
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39 it("should allow a custom sort function", function ()
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40 local orig = { b = 1, c = 2, a = "foo", d = false };
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41 local n, last_key = 0, nil;
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42 for k, v in iter.sorted_pairs(orig, function (a, b) return a > b end) do
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43 n = n + 1;
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44 if last_key then
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45 assert(k < last_key, "Expected "..k.." > "..last_key)
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46 end
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47 assert.equal(orig[k], v);
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48 last_key = k;
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49 end
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50 assert.equal("a", last_key);
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51 assert.equal(4, n);
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52 end);
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53 end);
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54 end);