| 1 | describe("#autorun() & #depend()", function() {
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| 2 | this.timeout(500);
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| 3 | var tpl, comp;
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| 4 |
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| 5 | before(function() {
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| 6 | tpl = new Temple();
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| 7 | });
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| 8 |
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| 9 | beforeEach(function() {
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| 10 | tpl.set("foo", "bar");
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| 11 | });
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| 12 |
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| 13 | afterEach(function() {
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| 14 | if (comp != null) {
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| 15 | comp.stop();
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| 16 | comp = null;
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| 17 | }
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| 18 | });
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| 19 |
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| 20 | it("autorun() context always runs once, immediately", function() {
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| 21 | var seen = false;
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| 22 | comp = tpl.autorun(function() {
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| 23 | expect(tpl.get("foo")).to.equal("bar");
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| 24 | seen = true;
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| 25 | });
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| 26 | expect(seen).to.be.ok;
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| 27 | });
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| 28 |
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| 29 | it("`this` in autorun() contexts points to Temple instance", function() {
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| 30 | comp = tpl.autorun(function() {
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| 31 | expect(tpl.get("foo")).to.equal("bar");
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| 32 | expect(this).to.equal(tpl);
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| 33 | });
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| 34 | });
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| 35 |
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| 36 | it("changing value at `key` after calling get(key) in a context causes context to run again", function(done) {
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| 37 | var run = 2;
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| 38 |
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| 39 | comp = tpl.autorun(function() {
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| 40 | try { expect(tpl.get("foo")).to.be.ok; }
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| 41 | catch(e) { return done(e); }
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| 42 | if (!(--run)) done();
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| 43 | });
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| 44 |
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| 45 | setTimeout(function() {
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| 46 | tpl.set("foo", { bar: "baz" });
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| 47 | }, 10);
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| 48 | });
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| 49 |
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| 50 | it("autorun() context reruns for fallback changes", function(done) {
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| 51 | var fb = new Temple.Model({ baz: "buz" }),
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| 52 | run = 2;
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| 53 |
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| 54 | function donedone(e) {
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| 55 | tpl.removeModel(fb);
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| 56 | done(e);
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| 57 | }
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| 58 |
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| 59 | tpl.addModel(fb);
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| 60 |
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| 61 | comp = tpl.autorun(function() {
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| 62 | try { expect(tpl.get("baz")).to.be.ok; }
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| 63 | catch(e) { return donedone(e); }
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| 64 | if (!(--run)) donedone();
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| 65 | });
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| 66 |
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| 67 | setTimeout(function() {
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| 68 | fb.set("baz", { bar: "baz" });
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| 69 | }, 10);
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| 70 | });
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| 71 |
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| 72 | it("autorun() context reruns for changes to value when previous get() returned a fallback scope's value", function(done) {
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| 73 | var fb = new Temple.Model({ baz: "buz" }),
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| 74 | run = 2;
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| 75 |
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| 76 | function donedone(e) {
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| 77 | tpl.removeModel(fb);
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| 78 | done(e);
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| 79 | }
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| 80 |
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| 81 | tpl.addModel(fb);
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| 82 |
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| 83 | comp = tpl.autorun(function() {
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| 84 | try {
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| 85 | if (run == 2) expect(tpl.get("baz")).to.equal("buz");
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| 86 | if (run == 1) expect(tpl.get("baz")).to.deep.equal({ bar: "baz" });
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| 87 | }
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| 88 | catch(e) { return donedone(e); }
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| 89 | if (!(--run)) donedone();
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| 90 | });
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| 91 |
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| 92 | setTimeout(function() {
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| 93 | tpl.set("baz", { bar: "baz" });
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| 94 | }, 10);
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| 95 | });
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| 96 | }); |
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