implement mmmfs on real fs

2 files changed, 247 insertions, 0 deletions

diff --git a/root/meta/test_mmm.component/description: text$plain b/root/meta/test_mmm.component/description: text$plain
new file mode 100644
index 0000000..691fea5
--- /dev/null
+++ b/root/meta/test_mmm.component/description: text$plain
@@ -0,0 +1 @@
+Tests for mmm.component
diff --git a/root/meta/test_mmm.component/text$moonscript -> mmm$dom.moon b/root/meta/test_mmm.component/text$moonscript -> mmm$dom.moon
new file mode 100644
index 0000000..547b030
--- /dev/null
+++ b/root/meta/test_mmm.component/text$moonscript -> mmm$dom.moon
@@ -0,0 +1,246 @@
+import article, div, h1, ul, li, pre from require 'mmm.dom'
+
+_content = {}
+append = (stuff) -> table.insert _content, stuff
+
+last = nil
+test_group = (name) ->
+  if last
+    append div (h1 last.name), ul last
+
+  last = { :name }
+  (name, test) ->
+    ok, err = pcall test
+    table.insert last, li if ok
+      "passed '#{name}'"
+    else
+      "failed '#{name}'", pre err
+
+expect = (expected, note, ...) ->
+  ok, msg = pcall ...
+  if ok or not msg\find expected
+    error note
+
+run_test = test_group 'component.moon'
+
+local ReactiveVar, ReactiveElement
+run_test "exports ReactiveVar, ReactiveElement", ->
+  import ReactiveVar, ReactiveElement from require 'mmm.component'
+  assert ReactiveVar, "ReactiveVar not exported"
+  assert ReactiveElement, "ReactiveElement not exported"
+
+run_test "exports tohtml helper", ->
+  import tohtml from require 'mmm.component'
+  assert 'function' == (type tohtml), "tohtml not exported"
+
+-- @TODO: get_or_create
+
+run_test "exports text helper", ->
+  import text from require 'mmm.component'
+  assert 'function' == (type text), "text not exported"
+
+  node = text 'a test string'
+
+  data = if MODE == 'CLIENT'
+    assert (js.instanceof node, js.global.Node), "expected text to generate a Node"
+    node.data
+  else
+    node
+
+  assert data == 'a test string', "expected text to store the string"
+
+run_test "text joins multiple arguments", ->
+  import text from require 'mmm.component'
+
+  node = text 'a', 'test', 'string'
+
+  data = if MODE == 'CLIENT' then node.data else node
+  assert data == 'a test string', "expected text to join arguments with spaces"
+
+run_test "exports elements table", ->
+  import elements from require 'mmm.component'
+
+  assert (type elements.div!) == 'table', "expected to build element with elements.div!"
+  assert (type elements.madeup!) == 'table', "expected to build element with elements.madeup!"
+
+run_test = test_group 'ReactiveVar'
+
+run_test "stores a value", ->
+  reactive = ReactiveVar 'test'
+  assert 'test' == reactive\get!, "expected x to be 'test'"
+
+run_test "provides #map shorthand", ->
+  local done
+
+  original = ReactiveVar 1
+  mapped = original\map (a) -> a + 10
+
+  assert mapped\get! == 11, "expected mapped to be 11"
+  return if MODE == 'SERVER'
+
+  original\set 4
+  assert mapped\get! == 14, "expected mapped to update"
+
+  mapped\subscribe coroutine.wrap (next, last) ->
+    assert next == 26, "expected next to be 26"
+    assert last == 14, "expected last to be 14"
+    done = true
+
+  original\set 16
+  assert done, "expected to reach the end"
+
+if MODE == 'CLIENT'
+  run_test "propagates updates", ->
+    local done
+
+    reactive = ReactiveVar 'test'
+    reactive\subscribe coroutine.wrap (next) ->
+      assert next == 'toast', "expected next to be 'toast'"
+      assert coroutine.yield! == 'cheese', "expected next to be 'cheese'"
+      done = true
+
+    reactive\set 'toast'
+    assert 'toast' == reactive\get!, "expected #get to return 'toast'"
+    reactive\set 'cheese'
+    assert done, "expected to reach the end"
+
+  run_test "passes old value as well", ->
+    local done
+
+    reactive = ReactiveVar 1
+    reactive\subscribe coroutine.wrap (next, last) ->
+      assert last == 1, "expected last:1 to be 1"
+      next, last = coroutine.yield!
+      assert last == 2, "expected last:2 to be 2"
+      done = true
+
+    reactive\set 2
+    reactive\set 3
+    assert done, "expected to reach the end"
+
+  run_test "provides #transform shorthand", ->
+    local done
+
+    reactive = ReactiveVar 1
+    reactive\subscribe coroutine.wrap (next, last) ->
+      assert last == 1, "expected last:1 to be 1"
+      next, last = coroutine.yield!
+      assert last == 2, "expected last:2 to be 2"
+      done = true
+
+    add_one = (a) -> a + 1
+    reactive\transform add_one
+    reactive\transform add_one
+    assert done, "expected to reach the end"
+
+  run_test "#subscribe returns function to unsubscribe", ->
+    calls = 0
+
+    reactive = ReactiveVar 1
+    unsub = reactive\subscribe coroutine.wrap () ->
+      calls += 1
+      coroutine.yield!
+      calls += 1
+      coroutine.yield!
+      calls += 1
+
+    assert 'function' == (type unsub), "expected to receive a function"
+
+    reactive\set 2
+    reactive\set 3
+    assert calls == 2, "wat"
+
+    unsub!
+    reactive\set 4
+    assert calls == 2, "expected to stop receiving updates"
+
+  run_test "tracks multiple subscriptions at once", ->
+    reactive = ReactiveVar 'test'
+    unsub = reactive\subscribe coroutine.wrap (next) ->
+      assert next == 'toast', "expected next to be toast"
+      next = coroutine.yield!
+      assert next == 'cheese', "expected next to be cheese"
+      coroutine.yield!
+      error "expected not to get here"
+
+    reactive\set 'toast'
+
+    local done
+    reactive\subscribe coroutine.wrap (next) ->
+      assert next == 'cheese', "expected next to be cheese"
+      next = coroutine.yield!
+      assert next == 'test', "expected next to be test"
+      done = true
+
+    reactive\set 'cheese'
+    unsub!
+    reactive\set 'test'
+    assert done, "expected to reach the end"
+
+run_test = test_group 'ReactiveElement'
+
+run_test "creates a HTML element", ->
+  elem = ReactiveElement 'span'
+  assert elem.node and elem.node.localName == 'span', "expected Node to be a <span>"
+
+-- @TODO: can take over a DOM Node
+
+run_test "sets attributes from a table arg", ->
+  elem = ReactiveElement 'span', class: 'never'
+  assert elem.node.className == 'never', "expected class to be 'never'"
+
+run_test "appends Nodes from arguments", ->
+  e_div, e_pre = div!, pre!
+  elem = ReactiveElement 'span', e_div, e_pre
+  assert elem.node.firstElementChild == e_div, "expected div to be the first child of elem"
+  assert elem.node.lastElementChild == e_pre, "expected pre to be the last child of elem"
+
+run_test "can append ReactiveElements and text", ->
+  e_div = ReactiveElement 'div'
+  elem = ReactiveElement 'div', e_div, 'testtext'
+  assert elem.node.firstElementChild == e_div.node, "expected div to be the first child of elem"
+  assert elem.node.lastChild.data == 'testtext', "expected last child of elem to be 'testtext'"
+
+run_test "accepts attributes after children", ->
+  e_div = div!
+  elem = ReactiveElement 'div', e_div, class: 'test'
+  assert elem.node.firstElementChild == e_div, "expected div to be the first child of elem"
+  assert elem.node.className == 'test', "expected class to be 'test'"
+
+run_test "allows mixing attributes and children in a single table", ->
+  e_div, e_pre = div!, pre!
+  elem = ReactiveElement 'div', { class: 'test', e_div, e_pre }
+  assert elem.node.firstElementChild == e_div, "expected div to be the first child of elem"
+  assert elem.node.lastElementChild == e_pre, "expected pre to be the last child of elem"
+  assert elem.node.className == 'test', "expected class to be 'test'"
+
+run_test "can unwrap and track attributes from ReactiveVars", ->
+  klass = ReactiveVar 'test'
+  elem = ReactiveElement 'div', class: klass
+  assert elem.node.className == 'test', "expected class to be 'test'"
+  klass\set 'toast'
+  assert elem.node.className == 'toast', "expected class to be 'toast'"
+
+run_test "can unwrap and track children from ReactiveVars", ->
+  child = ReactiveVar h1 'test'
+  elem = ReactiveElement 'div', child, pre 'fixed'
+  assert elem.node.firstElementChild.localName == 'h1', "expected first child to be h1"
+  assert elem.node.childElementCount == 2, "expected node to have two children"
+  child\set div 'toast'
+  assert elem.node.firstElementChild.localName == 'div', "expected first child to be div"
+  assert elem.node.childElementCount == 2, "expected node to have two children"
+
+run_test "warns when appending a string from a ReactiveVar", ->
+  import text from require 'mmm.component'
+
+  str = ReactiveVar 'test'
+  elem = ReactiveElement 'div', str
+  expect 'cannot replace string node', 'expected error', str\set, 'string too'
+  elem\destroy!
+
+  elem = ReactiveElement 'div', str\map text
+  str\set 'this is text'
+
+test_group!
+
+article _content