Test UserNotes\Sorter

We add a copy of the latest run-tests.php from the PHP-8.0 branch, and
tests for the `UserNotes\Sorter` with full code coverage.  We also run tests
on GitHub Actions.

Co-authored-by: Andreas Möller <am@localheinz.com>

Closes GH-606.

.editorconfig

@@ -2,3 +2,9 @@ root = true
 
 [*]
 insert_final_newline = true
+
+[*.yaml]
+charset = utf-8
+indent_size = 2
+indent_style = space
+trim_trailing_whitespace = true

.github/workflows/integrate.yaml

@@ -0,0 +1,37 @@
+# https://docs.github.com/en/actions
+
+name: "Integrate"
+
+on:
+  pull_request: null
+  push:
+    branches:
+      - "master"
+
+jobs:
+  tests:
+    name: "Tests"
+
+    runs-on: "ubuntu-18.04"
+
+    strategy:
+      matrix:
+        php-version:
+          - "7.3"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v3"
+
+      - name: "Set up PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "none"
+          extensions: "none"
+          php-version: "${{ matrix.php-version }}"
+
+      - name: "Set up problem matchers for PHP"
+        run: "echo \"::add-matcher::${{ runner.tool_cache }}/php.json\""
+
+      - name: "Run tests"
+        run: "php tests/run-tests.php -j3 -q --show-diff"

tests/sort_notes_001.phpt

@@ -0,0 +1,109 @@
+--TEST--
+sort some notes
+--INI--
+precision=-1
+--FILE--
+<?php
+require_once __DIR__ . "/../src/UserNotes/Sorter.php";
+
+$notes = [
+    [
+        "votes" => ["up" => 0, "down" => 2],
+        "xwhen" => 1613487094,
+    ], [
+        "votes" => ["up" => 0, "down" => 0],
+        "xwhen" => 1508180150,
+    ], [
+        "votes" => ["up" => 14, "down" => 3],
+        "xwhen" => 1508179844,
+    ], [
+        "votes" => ["up" => 14, "down" => 3],
+        "xwhen" => 1508179844,
+    ],
+];
+
+$sorter = new phpweb\UserNotes\Sorter();
+$sorter->sort($notes);
+var_dump(array_map(function (array $note): array {
+    return [
+        "ts" => $note["xwhen"],
+        "upvotes" => $note["votes"]["up"],
+        "downvotes" => $note["votes"]["down"],
+        "score" => $note["score"],
+        "total" => $note["total"],
+        "rating" => $note["rating"],
+        "sort" => $note["sort"],
+    ];
+}, $notes));
+?>
+--EXPECT--
+array(4) {
+  [2]=>
+  array(7) {
+    ["ts"]=>
+    int(1508179844)
+    ["upvotes"]=>
+    int(14)
+    ["downvotes"]=>
+    int(3)
+    ["score"]=>
+    int(11)
+    ["total"]=>
+    int(17)
+    ["rating"]=>
+    float(0.8235294117647058)
+    ["sort"]=>
+    float(87.41176470588235)
+  }
+  [3]=>
+  array(7) {
+    ["ts"]=>
+    int(1508179844)
+    ["upvotes"]=>
+    int(14)
+    ["downvotes"]=>
+    int(3)
+    ["score"]=>
+    int(11)
+    ["total"]=>
+    int(17)
+    ["rating"]=>
+    float(0.8235294117647058)
+    ["sort"]=>
+    float(87.41176470588235)
+  }
+  [1]=>
+  array(7) {
+    ["ts"]=>
+    int(1508180150)
+    ["upvotes"]=>
+    int(0)
+    ["downvotes"]=>
+    int(0)
+    ["score"]=>
+    int(0)
+    ["total"]=>
+    int(0)
+    ["rating"]=>
+    float(0.5)
+    ["sort"]=>
+    float(45.49231350387337)
+  }
+  [0]=>
+  array(7) {
+    ["ts"]=>
+    int(1613487094)
+    ["upvotes"]=>
+    int(0)
+    ["downvotes"]=>
+    int(2)
+    ["score"]=>
+    int(-2)
+    ["total"]=>
+    int(2)
+    ["rating"]=>
+    int(0)
+    ["sort"]=>
+    float(43.4)
+  }
+}

tests/sort_notes_002.phpt

@@ -0,0 +1,27 @@
+--TEST--
+sort no notes
+--INI--
+precision=-1
+--FILE--
+<?php
+require_once __DIR__ . "/../src/UserNotes/Sorter.php";
+
+$notes = [];
+
+$sorter = new phpweb\UserNotes\Sorter();
+$sorter->sort($notes);
+var_dump(array_map(function (array $note): array {
+    return [
+        "ts" => $note["xwhen"],
+        "upvotes" => $note["votes"]["up"],
+        "downvotes" => $note["votes"]["down"],
+        "score" => $note["score"],
+        "total" => $note["total"],
+        "rating" => $note["rating"],
+        "sort" => $note["sort"],
+    ];
+}, $notes));
+?>
+--EXPECT--
+array(0) {
+}

tests/sort_notes_003.phpt

@@ -0,0 +1,49 @@
+--TEST--
+sort a single note with no votes
+--INI--
+precision=-1
+--FILE--
+<?php
+require_once __DIR__ . "/../src/UserNotes/Sorter.php";
+
+$notes = [
+    [
+        "votes" => ["up" => 0, "down" => 0],
+        "xwhen" => 1613487094,
+    ],
+];
+
+$sorter = new phpweb\UserNotes\Sorter();
+$sorter->sort($notes);
+var_dump(array_map(function (array $note): array {
+    return [
+        "ts" => $note["xwhen"],
+        "upvotes" => $note["votes"]["up"],
+        "downvotes" => $note["votes"]["down"],
+        "score" => $note["score"],
+        "total" => $note["total"],
+        "rating" => $note["rating"],
+        "sort" => $note["sort"],
+    ];
+}, $notes));
+?>
+--EXPECT--
+array(1) {
+  [0]=>
+  array(7) {
+    ["ts"]=>
+    int(1613487094)
+    ["upvotes"]=>
+    int(0)
+    ["downvotes"]=>
+    int(0)
+    ["score"]=>
+    int(0)
+    ["total"]=>
+    int(0)
+    ["rating"]=>
+    float(0.5)
+    ["sort"]=>
+    float(41.4)
+  }
+}