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231 lines
8.0 KiB
JavaScript
231 lines
8.0 KiB
JavaScript
////////////////////////////////////////////////////////////////////////////////
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// Helper functions for accessible states testing.
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//
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// requires:
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// common.js
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//
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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// State constants
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// const STATE_BUSY is defined in common.js
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const STATE_CHECKED = nsIAccessibleStates.STATE_CHECKED;
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const STATE_CHECKABLE = nsIAccessibleStates.STATE_CHECKABLE;
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const STATE_COLLAPSED = nsIAccessibleStates.STATE_COLLAPSED;
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const STATE_EXPANDED = nsIAccessibleStates.STATE_EXPANDED;
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const STATE_EXTSELECTABLE = nsIAccessibleStates.STATE_EXTSELECTABLE;
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const STATE_FOCUSABLE = nsIAccessibleStates.STATE_FOCUSABLE;
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const STATE_FOCUSED = nsIAccessibleStates.STATE_FOCUSED;
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const STATE_HASPOPUP = nsIAccessibleStates.STATE_HASPOPUP;
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const STATE_INVALID = nsIAccessibleStates.STATE_INVALID;
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const STATE_INVISIBLE = nsIAccessibleStates.STATE_INVISIBLE;
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const STATE_LINKED = nsIAccessibleStates.STATE_LINKED;
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const STATE_MIXED = nsIAccessibleStates.STATE_MIXED;
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const STATE_MULTISELECTABLE = nsIAccessibleStates.STATE_MULTISELECTABLE;
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const STATE_OFFSCREEN = nsIAccessibleStates.STATE_OFFSCREEN;
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const STATE_PRESSED = nsIAccessibleStates.STATE_PRESSED;
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const STATE_READONLY = nsIAccessibleStates.STATE_READONLY;
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const STATE_REQUIRED = nsIAccessibleStates.STATE_REQUIRED;
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const STATE_SELECTABLE = nsIAccessibleStates.STATE_SELECTABLE;
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const STATE_SELECTED = nsIAccessibleStates.STATE_SELECTED;
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const STATE_TRAVERSED = nsIAccessibleStates.STATE_TRAVERSED;
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const STATE_UNAVAILABLE = nsIAccessibleStates.STATE_UNAVAILABLE;
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const EXT_STATE_ACTIVE = nsIAccessibleStates.EXT_STATE_ACTIVE;
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const EXT_STATE_DEFUNCT = nsIAccessibleStates.EXT_STATE_DEFUNCT;
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const EXT_STATE_EDITABLE = nsIAccessibleStates.EXT_STATE_EDITABLE;
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const EXT_STATE_EXPANDABLE = nsIAccessibleStates.EXT_STATE_EXPANDABLE;
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const EXT_STATE_HORIZONTAL = nsIAccessibleStates.EXT_STATE_HORIZONTAL;
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const EXT_STATE_MULTI_LINE = nsIAccessibleStates.EXT_STATE_MULTI_LINE;
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const EXT_STATE_SINGLE_LINE = nsIAccessibleStates.EXT_STATE_SINGLE_LINE;
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const EXT_STATE_STALE = nsIAccessibleStates.EXT_STATE_STALE;
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const EXT_STATE_SUPPORTS_AUTOCOMPLETION =
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nsIAccessibleStates.EXT_STATE_SUPPORTS_AUTOCOMPLETION;
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const EXT_STATE_VERTICAL = nsIAccessibleStates.EXT_STATE_VERTICAL;
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////////////////////////////////////////////////////////////////////////////////
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// Test functions
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/**
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* Tests the states and extra states of the given accessible.
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* Also tests for unwanted states and extra states.
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* In addition, the function performs a few plausibility checks derived from the
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* sstates and extra states passed in.
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*
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* @param aAccOrElmOrID The accessible, DOM element or ID to be tested.
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* @param aState The state bits that are wanted.
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* @param aExtraState The extra state bits that are wanted.
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* @param aAbsentState State bits that are not wanted.
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* @param aAbsentExtraState Extra state bits that are not wanted.
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*/
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function testStates(aAccOrElmOrID, aState, aExtraState, aAbsentState,
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aAbsentExtraState)
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{
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var [state, extraState] = getStates(aAccOrElmOrID);
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var id = prettyName(aAccOrElmOrID);
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// Primary test.
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isState(state & aState, aState, false,
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"wrong state bits for " + id + "!");
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if (aExtraState)
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isState(extraState & aExtraState, aExtraState, true,
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"wrong extra state bits for " + id + "!");
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if (aAbsentState)
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isState(state & aAbsentState, 0, false,
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"state bits should not be present in ID " + id + "!");
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if (aAbsentExtraState)
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isState(extraState & aAbsentExtraState, 0, true,
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"extraState bits should not be present in ID " + id + "!");
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// Additional test.
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// readonly/editable
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if (state & STATE_READONLY)
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isState(extraState & EXT_STATE_EDITABLE, 0, true,
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"Read-only " + id + " cannot be editable!");
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if (extraState & EXT_STATE_EDITABLE)
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isState(state & STATE_READONLY, 0, true,
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"Editable " + id + " cannot be readonly!");
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// multiline/singleline
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if (extraState & EXT_STATE_MULTI_LINE)
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isState(extraState & EXT_STATE_SINGLE_LINE, 0, true,
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"Multiline " + id + " cannot be singleline!");
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if (extraState & EXT_STATE_SINGLE_LINE)
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isState(extraState & EXT_STATE_MULTI_LINE, 0, true,
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"Singleline " + id + " cannot be multiline!");
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// expanded/collapsed/expandable
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if (state & STATE_COLLAPSED || state & STATE_EXPANDED)
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isState(extraState & EXT_STATE_EXPANDABLE, EXT_STATE_EXPANDABLE, true,
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"Collapsed or expanded " + id + " should be expandable!");
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if (state & STATE_COLLAPSED)
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isState(state & STATE_EXPANDED, 0, false,
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"Collapsed " + id + " cannot be expanded!");
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if (state & STATE_EXPANDED)
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isState(state & STATE_COLLAPSED, 0, false,
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"Expanded " + id + " cannot be collapsed!");
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// checked/mixed/checkable
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if (state & STATE_CHECKED || state & STATE_MIXED)
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isState(state & STATE_CHECKABLE, STATE_CHECKABLE, false,
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"Checked or mixed element must be checkable!");
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if (state & STATE_CHECKED)
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isState(state & STATE_MIXED, 0, false,
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"Checked element cannot be state mixed!");
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if (state & STATE_MIXED)
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isState(state & STATE_CHECKED, 0, false,
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"Mixed element cannot be state checked!");
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// selected/selectable
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if (state & STATE_SELECTED) {
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isState(state & STATE_SELECTABLE, STATE_SELECTABLE, false,
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"Selected element should be selectable!");
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}
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}
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/**
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* Tests an acessible and its sub tree for the passed in state bits.
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* Used to make sure that states are propagated to descendants, for example the
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* STATE_UNAVAILABLE from a container to its children.
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*
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* @param aAccOrElmOrID The accessible, DOM element or ID to be tested.
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* @param aState The state bits that are wanted.
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* @param aExtraState The extra state bits that are wanted.
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* @param aAbsentState State bits that are not wanted.
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*/
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function testStatesInSubtree(aAccOrElmOrID, aState, aExtraState, aAbsentState)
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{
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// test accessible and its subtree for propagated states.
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var acc = getAccessible(aAccOrElmOrID);
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if (!acc)
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return;
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if (getRole(acc) != ROLE_TEXT_LEAF)
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// Right now, text leafs don't get tested because the states are not being
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// propagated.
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testStates(acc, aState, aExtraState, aAbsentState);
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// Iterate over its children to see if the state got propagated.
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var children = null;
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try {
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children = acc.children;
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} catch(e) {}
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ok(children, "Could not get children for " + aAccOrElmOrID +"!");
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if (children) {
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for (var i = 0; i < children.length; i++) {
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var childAcc = children.queryElementAt(i, nsIAccessible);
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testStatesInSubtree(childAcc, aState, aExtraState, aAbsentState);
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}
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}
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}
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function getStringStates(aAccOrElmOrID)
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{
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var [state, extraState] = getStates(aAccOrElmOrID);
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return statesToString(state, extraState);
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}
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function getStates(aAccOrElmOrID)
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{
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var acc = getAccessible(aAccOrElmOrID);
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if (!acc)
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return [0, 0];
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var state = {}, extraState = {};
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acc.getState(state, extraState);
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return [state.value, extraState.value];
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}
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/**
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* Return true if the accessible has given states.
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*/
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function hasState(aAccOrElmOrID, aState, aExtraState)
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{
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var [state, exstate] = getStates(aAccOrElmOrID);
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return (aState ? state & aState : true) &&
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(aExtraState ? exstate & aExtraState : true);
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}
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////////////////////////////////////////////////////////////////////////////////
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// Private implementation details
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/**
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* Analogy of SimpleTest.is function used to compare states.
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*/
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function isState(aState1, aState2, aIsExtraStates, aMsg)
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{
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if (aState1 == aState2) {
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ok(true, aMsg);
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return;
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}
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var got = "0";
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if (aState1) {
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got = statesToString(aIsExtraStates ? 0 : aState1,
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aIsExtraStates ? aState1 : 0);
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}
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var expected = "0";
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if (aState2) {
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expected = statesToString(aIsExtraStates ? 0 : aState2,
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aIsExtraStates ? aState2 : 0);
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}
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ok(false, aMsg + "got '" + got + "', expected '" + expected + "'");
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}
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