From 247b69cbc01741257c3d3b72ad75bb62325eaf49 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Erik=20Dal=C3=A9n?= <dalen@spotify.com>
Date: Tue, 7 Aug 2012 23:36:20 +0200
Subject: (#15872) Add to_bytes function
Converts a string like "2 MB" to the value in bytes. Useful for
comparisons on facts that return a human readable number instead of
machine readable.
---
spec/unit/puppet/parser/functions/to_bytes_spec.rb | 58 ++++++++++++++++++++++
1 file changed, 58 insertions(+)
create mode 100755 spec/unit/puppet/parser/functions/to_bytes_spec.rb
(limited to 'spec/unit')
diff --git a/spec/unit/puppet/parser/functions/to_bytes_spec.rb b/spec/unit/puppet/parser/functions/to_bytes_spec.rb
new file mode 100755
index 0000000..d1ea4c8
--- /dev/null
+++ b/spec/unit/puppet/parser/functions/to_bytes_spec.rb
@@ -0,0 +1,58 @@
+#! /usr/bin/env ruby -S rspec
+
+require 'spec_helper'
+
+describe "the to_bytes function" do
+ let(:scope) { PuppetlabsSpec::PuppetInternals.scope }
+
+ it "should exist" do
+ Puppet::Parser::Functions.function("to_bytes").should == "function_to_bytes"
+ end
+
+ it "should raise a ParseError if there is less than 1 arguments" do
+ lambda { scope.function_to_bytes([]) }.should( raise_error(Puppet::ParseError))
+ end
+
+ it "should convert kB to B" do
+ result = scope.function_to_bytes(["4 kB"])
+ result.should(eq(4096))
+ end
+
+ it "should work without B in unit" do
+ result = scope.function_to_bytes(["4 k"])
+ result.should(eq(4096))
+ end
+
+ it "should work without a space before unit" do
+ result = scope.function_to_bytes(["4k"])
+ result.should(eq(4096))
+ end
+
+ it "should work without a unit" do
+ result = scope.function_to_bytes(["5678"])
+ result.should(eq(5678))
+ end
+
+ it "should convert fractions" do
+ result = scope.function_to_bytes(["1.5 kB"])
+ result.should(eq(1536))
+ end
+
+ it "should convert scientific notation" do
+ result = scope.function_to_bytes(["1.5e2 B"])
+ result.should(eq(150))
+ end
+
+ it "should do nothing with a positive number" do
+ result = scope.function_to_bytes([5678])
+ result.should(eq(5678))
+ end
+
+ it "should should raise a ParseError if input isn't a number" do
+ lambda { scope.function_to_bytes(["foo"]) }.should( raise_error(Puppet::ParseError))
+ end
+
+ it "should should raise a ParseError if prefix is unknown" do
+ lambda { scope.function_to_bytes(["5 uB"]) }.should( raise_error(Puppet::ParseError))
+ end
+end
--
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