FormatNumDirective fails with Unrecognized Number Format Type: {0}

How to reproduce:
1. create a soy template containing a number format directive

{namespace test.template}

/**
 * Currency Test Template
 * @param cost
 */
{template .currencyTest}
Cost: {$cost |formatNum:'currency'}
{/template}

2. render the template

Template template = new Template(soyUrl);
template.render("test.template", ".currencyTest", ImmutableMap.<String, 
?>of("cost", 42.17f));

3. observe the following exception when executing the aforementioned code 
snippet:

java.lang.IllegalArgumentException: Unrecognized Number Format Type: {0}
    at com.google.template.soy.i18ndirectives.FormatNumDirective.apply(FormatNumDirective.java:95)
    at com.google.template.soy.tofu.restricted.SoyAbstractTofuPrintDirective.applyForTofu(SoyAbstractTofuPrintDirective.java:33)
    at com.google.template.soy.tofu.internal.TofuRenderVisitor.applyDirective(TofuRenderVisitor.java:109)
    at com.google.template.soy.sharedpasses.render.RenderVisitor.visitPrintNode(RenderVisitor.java:256)
    at com.google.template.soy.soytree.AbstractSoyNodeVisitor.visit(AbstractSoyNodeVisitor.java:85)
    at com.google.template.soy.soytree.AbstractSoyNodeVisitor.visit(AbstractSoyNodeVisitor.java:55)
    at com.google.template.soy.basetree.AbstractNodeVisitor.visitChildren(AbstractNodeVisitor.java:59)
    at com.google.template.soy.soytree.AbstractSoyNodeVisitor.visitChildren(AbstractSoyNodeVisitor.java:126)
    at com.google.template.soy.sharedpasses.render.RenderVisitor.visitBlockHelper(RenderVisitor.java:648)
    at com.google.template.soy.sharedpasses.render.RenderVisitor.visitTemplateNode(RenderVisitor.java:211)
    at com.google.template.soy.soytree.AbstractSoyNodeVisitor.visitTemplateBasicNode(AbstractSoyNodeVisitor.java:157)
    at com.google.template.soy.soytree.AbstractSoyNodeVisitor.visit(AbstractSoyNodeVisitor.java:65)
    at com.google.template.soy.soytree.AbstractSoyNodeVisitor.visit(AbstractSoyNodeVisitor.java:55)
    at com.google.template.soy.basetree.AbstractNodeVisitor.exec(AbstractNodeVisitor.java:40)
    at com.google.template.soy.tofu.internal.BaseTofu.renderMainHelper(BaseTofu.java:383)
    at com.google.template.soy.tofu.internal.BaseTofu.renderMain(BaseTofu.java:341)
    at com.google.template.soy.tofu.internal.BaseTofu.renderMain(BaseTofu.java:292)
    at com.google.template.soy.tofu.internal.BaseTofu.access$000(BaseTofu.java:63)
    at com.google.template.soy.tofu.internal.BaseTofu$RendererImpl.render(BaseTofu.java:466)

The expected output would be a return value of "Cost: $42.17"

This happens with soy-2012-12-21 
on Windows 7 x64 
with Java 1.7.0_60_x64

The root cause seems to be the formatType check in 
com.google.template.soy.i18ndirectives.FormatNumDirective.apply(SoyData, 
List<SoyData>)
The formatType checks at lines 86 to 92 should be done with String.equals and 
not with ==
Original issue reported on code.google.com by cpwr.lab...@gmail.com on 25 Feb 2015 at 1:49
bqw5189 / closure-templates

FormatNumDirective fails with Unrecognized Number Format Type: {0} #80
