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#! /usr/bin/env ruby
require 'spec_helper'
require 'puppet/pops'
# relative to this spec file (./) does not work as this file is loaded by rspec
require File.join(File.dirname(__FILE__), '/parser_rspec_helper')
describe "egrammar parsing basic expressions" do
include ParserRspecHelper
context "When the parser parses arithmetic" do
context "with Integers" do
it "$a = 2 + 2" do; dump(parse("$a = 2 + 2")).should == "(= $a (+ 2 2))" ; end
it "$a = 7 - 3" do; dump(parse("$a = 7 - 3")).should == "(= $a (- 7 3))" ; end
it "$a = 6 * 3" do; dump(parse("$a = 6 * 3")).should == "(= $a (* 6 3))" ; end
it "$a = 6 / 3" do; dump(parse("$a = 6 / 3")).should == "(= $a (/ 6 3))" ; end
it "$a = 6 % 3" do; dump(parse("$a = 6 % 3")).should == "(= $a (% 6 3))" ; end
it "$a = -(6/3)" do; dump(parse("$a = -(6/3)")).should == "(= $a (- (/ 6 3)))" ; end
it "$a = -6/3" do; dump(parse("$a = -6/3")).should == "(= $a (/ (- 6) 3))" ; end
it "$a = 8 >> 1 " do; dump(parse("$a = 8 >> 1")).should == "(= $a (>> 8 1))" ; end
it "$a = 8 << 1 " do; dump(parse("$a = 8 << 1")).should == "(= $a (<< 8 1))" ; end
end
context "with Floats" do
it "$a = 2.2 + 2.2" do; dump(parse("$a = 2.2 + 2.2")).should == "(= $a (+ 2.2 2.2))" ; end
it "$a = 7.7 - 3.3" do; dump(parse("$a = 7.7 - 3.3")).should == "(= $a (- 7.7 3.3))" ; end
it "$a = 6.1 * 3.1" do; dump(parse("$a = 6.1 - 3.1")).should == "(= $a (- 6.1 3.1))" ; end
it "$a = 6.6 / 3.3" do; dump(parse("$a = 6.6 / 3.3")).should == "(= $a (/ 6.6 3.3))" ; end
it "$a = -(6.0/3.0)" do; dump(parse("$a = -(6.0/3.0)")).should == "(= $a (- (/ 6.0 3.0)))" ; end
it "$a = -6.0/3.0" do; dump(parse("$a = -6.0/3.0")).should == "(= $a (/ (- 6.0) 3.0))" ; end
it "$a = 3.14 << 2" do; dump(parse("$a = 3.14 << 2")).should == "(= $a (<< 3.14 2))" ; end
it "$a = 3.14 >> 2" do; dump(parse("$a = 3.14 >> 2")).should == "(= $a (>> 3.14 2))" ; end
end
context "with hex and octal Integer values" do
it "$a = 0xAB + 0xCD" do; dump(parse("$a = 0xAB + 0xCD")).should == "(= $a (+ 0xAB 0xCD))" ; end
it "$a = 0777 - 0333" do; dump(parse("$a = 0777 - 0333")).should == "(= $a (- 0777 0333))" ; end
end
context "with strings requiring boxing to Numeric" do
# Test that numbers in string form does not turn into numbers
it "$a = '2' + '2'" do; dump(parse("$a = '2' + '2'")).should == "(= $a (+ '2' '2'))" ; end
it "$a = '2.2' + '0.2'" do; dump(parse("$a = '2.2' + '0.2'")).should == "(= $a (+ '2.2' '0.2'))" ; end
it "$a = '0xab' + '0xcd'" do; dump(parse("$a = '0xab' + '0xcd'")).should == "(= $a (+ '0xab' '0xcd'))" ; end
it "$a = '0777' + '0333'" do; dump(parse("$a = '0777' + '0333'")).should == "(= $a (+ '0777' '0333'))" ; end
end
context "precedence should be correct" do
it "$a = 1 + 2 * 3" do; dump(parse("$a = 1 + 2 * 3")).should == "(= $a (+ 1 (* 2 3)))"; end
it "$a = 1 + 2 % 3" do; dump(parse("$a = 1 + 2 % 3")).should == "(= $a (+ 1 (% 2 3)))"; end
it "$a = 1 + 2 / 3" do; dump(parse("$a = 1 + 2 / 3")).should == "(= $a (+ 1 (/ 2 3)))"; end
it "$a = 1 + 2 << 3" do; dump(parse("$a = 1 + 2 << 3")).should == "(= $a (<< (+ 1 2) 3))"; end
it "$a = 1 + 2 >> 3" do; dump(parse("$a = 1 + 2 >> 3")).should == "(= $a (>> (+ 1 2) 3))"; end
end
context "parentheses alter precedence" do
it "$a = (1 + 2) * 3" do; dump(parse("$a = (1 + 2) * 3")).should == "(= $a (* (+ 1 2) 3))"; end
it "$a = (1 + 2) / 3" do; dump(parse("$a = (1 + 2) / 3")).should == "(= $a (/ (+ 1 2) 3))"; end
end
end
context "When the evaluator performs boolean operations" do
context "using operators AND OR NOT" do
it "$a = true and true" do; dump(parse("$a = true and true")).should == "(= $a (&& true true))"; end
it "$a = true or true" do; dump(parse("$a = true or true")).should == "(= $a (|| true true))" ; end
it "$a = !true" do; dump(parse("$a = !true")).should == "(= $a (! true))" ; end
end
context "precedence should be correct" do
it "$a = false or true and true" do
dump(parse("$a = false or true and true")).should == "(= $a (|| false (&& true true)))"
end
it "$a = (false or true) and true" do
dump(parse("$a = (false or true) and true")).should == "(= $a (&& (|| false true) true))"
end
it "$a = !true or true and true" do
dump(parse("$a = !false or true and true")).should == "(= $a (|| (! false) (&& true true)))"
end
end
# Possibly change to check of literal expressions
context "on values requiring boxing to Boolean" do
it "'x' == true" do
dump(parse("! 'x'")).should == "(! 'x')"
end
it "'' == false" do
dump(parse("! ''")).should == "(! '')"
end
it ":undef == false" do
dump(parse("! undef")).should == "(! :undef)"
end
end
end
context "When parsing comparisons" do
context "of string values" do
it "$a = 'a' == 'a'" do; dump(parse("$a = 'a' == 'a'")).should == "(= $a (== 'a' 'a'))" ; end
it "$a = 'a' != 'a'" do; dump(parse("$a = 'a' != 'a'")).should == "(= $a (!= 'a' 'a'))" ; end
it "$a = 'a' < 'b'" do; dump(parse("$a = 'a' < 'b'")).should == "(= $a (< 'a' 'b'))" ; end
it "$a = 'a' > 'b'" do; dump(parse("$a = 'a' > 'b'")).should == "(= $a (> 'a' 'b'))" ; end
it "$a = 'a' <= 'b'" do; dump(parse("$a = 'a' <= 'b'")).should == "(= $a (<= 'a' 'b'))" ; end
it "$a = 'a' >= 'b'" do; dump(parse("$a = 'a' >= 'b'")).should == "(= $a (>= 'a' 'b'))" ; end
end
context "of integer values" do
it "$a = 1 == 1" do; dump(parse("$a = 1 == 1")).should == "(= $a (== 1 1))" ; end
it "$a = 1 != 1" do; dump(parse("$a = 1 != 1")).should == "(= $a (!= 1 1))" ; end
it "$a = 1 < 2" do; dump(parse("$a = 1 < 2")).should == "(= $a (< 1 2))" ; end
it "$a = 1 > 2" do; dump(parse("$a = 1 > 2")).should == "(= $a (> 1 2))" ; end
it "$a = 1 <= 2" do; dump(parse("$a = 1 <= 2")).should == "(= $a (<= 1 2))" ; end
it "$a = 1 >= 2" do; dump(parse("$a = 1 >= 2")).should == "(= $a (>= 1 2))" ; end
end
context "of regular expressions (parse errors)" do
# Not supported in concrete syntax
it "$a = /.*/ == /.*/" do
dump(parse("$a = /.*/ == /.*/")).should == "(= $a (== /.*/ /.*/))"
end
it "$a = /.*/ != /a.*/" do
dump(parse("$a = /.*/ != /.*/")).should == "(= $a (!= /.*/ /.*/))"
end
end
end
context "When parsing Regular Expression matching" do
it "$a = 'a' =~ /.*/" do; dump(parse("$a = 'a' =~ /.*/")).should == "(= $a (=~ 'a' /.*/))" ; end
it "$a = 'a' =~ '.*'" do; dump(parse("$a = 'a' =~ '.*'")).should == "(= $a (=~ 'a' '.*'))" ; end
it "$a = 'a' !~ /b.*/" do; dump(parse("$a = 'a' !~ /b.*/")).should == "(= $a (!~ 'a' /b.*/))" ; end
it "$a = 'a' !~ 'b.*'" do; dump(parse("$a = 'a' !~ 'b.*'")).should == "(= $a (!~ 'a' 'b.*'))" ; end
end
context "When parsing unfold" do
it "$a = *[1,2]" do; dump(parse("$a = *[1,2]")).should == "(= $a (unfold ([] 1 2)))" ; end
it "$a = *1" do; dump(parse("$a = *1")).should == "(= $a (unfold 1))" ; end
end
context "When parsing Lists" do
it "$a = []" do
dump(parse("$a = []")).should == "(= $a ([]))"
end
it "$a = [1]" do
dump(parse("$a = [1]")).should == "(= $a ([] 1))"
end
it "$a = [1,2,3]" do
dump(parse("$a = [1,2,3]")).should == "(= $a ([] 1 2 3))"
end
it "[...[...[]]] should create nested arrays without trouble" do
dump(parse("$a = [1,[2.0, 2.1, [2.2]],[3.0, 3.1]]")).should == "(= $a ([] 1 ([] 2.0 2.1 ([] 2.2)) ([] 3.0 3.1)))"
end
it "$a = [2 + 2]" do
dump(parse("$a = [2+2]")).should == "(= $a ([] (+ 2 2)))"
end
it "$a [1,2,3] == [1,2,3]" do
dump(parse("$a = [1,2,3] == [1,2,3]")).should == "(= $a (== ([] 1 2 3) ([] 1 2 3)))"
end
end
context "When parsing indexed access" do
it "$a = $b[2]" do
dump(parse("$a = $b[2]")).should == "(= $a (slice $b 2))"
end
it "$a = [1, 2, 3][2]" do
dump(parse("$a = [1,2,3][2]")).should == "(= $a (slice ([] 1 2 3) 2))"
end
it "$a = {'a' => 1, 'b' => 2}['b']" do
dump(parse("$a = {'a'=>1,'b' =>2}[b]")).should == "(= $a (slice ({} ('a' 1) ('b' 2)) b))"
end
end
context "When parsing assignments" do
it "Should allow simple assignment" do
dump(parse("$a = 10")).should == "(= $a 10)"
end
it "Should allow append assignment" do
dump(parse("$a += 10")).should == "(+= $a 10)"
end
it "Should allow without assignment" do
dump(parse("$a -= 10")).should == "(-= $a 10)"
end
it "Should allow chained assignment" do
dump(parse("$a = $b = 10")).should == "(= $a (= $b 10))"
end
it "Should allow chained assignment with expressions" do
dump(parse("$a = 1 + ($b = 10)")).should == "(= $a (+ 1 (= $b 10)))"
end
end
context "When parsing Hashes" do
it "should create a Hash when evaluating a LiteralHash" do
dump(parse("$a = {'a'=>1,'b'=>2}")).should == "(= $a ({} ('a' 1) ('b' 2)))"
end
it "$a = {...{...{}}} should create nested hashes without trouble" do
dump(parse("$a = {'a'=>1,'b'=>{'x'=>2.1,'y'=>2.2}}")).should == "(= $a ({} ('a' 1) ('b' ({} ('x' 2.1) ('y' 2.2)))))"
end
it "$a = {'a'=> 2 + 2} should evaluate values in entries" do
dump(parse("$a = {'a'=>2+2}")).should == "(= $a ({} ('a' (+ 2 2))))"
end
it "$a = {'a'=> 1, 'b'=>2} == {'a'=> 1, 'b'=>2}" do
dump(parse("$a = {'a'=>1,'b'=>2} == {'a'=>1,'b'=>2}")).should == "(= $a (== ({} ('a' 1) ('b' 2)) ({} ('a' 1) ('b' 2))))"
end
it "$a = {'a'=> 1, 'b'=>2} != {'x'=> 1, 'y'=>3}" do
dump(parse("$a = {'a'=>1,'b'=>2} != {'a'=>1,'b'=>2}")).should == "(= $a (!= ({} ('a' 1) ('b' 2)) ({} ('a' 1) ('b' 2))))"
end
end
context "When parsing the 'in' operator" do
it "with integer in a list" do
dump(parse("$a = 1 in [1,2,3]")).should == "(= $a (in 1 ([] 1 2 3)))"
end
it "with string key in a hash" do
dump(parse("$a = 'a' in {'x'=>1, 'a'=>2, 'y'=> 3}")).should == "(= $a (in 'a' ({} ('x' 1) ('a' 2) ('y' 3))))"
end
it "with substrings of a string" do
dump(parse("$a = 'ana' in 'bananas'")).should == "(= $a (in 'ana' 'bananas'))"
end
it "with sublist in a list" do
dump(parse("$a = [2,3] in [1,2,3]")).should == "(= $a (in ([] 2 3) ([] 1 2 3)))"
end
end
context "When parsing string interpolation" do
it "should interpolate a bare word as a variable name, \"${var}\"" do
dump(parse("$a = \"$var\"")).should == "(= $a (cat '' (str $var) ''))"
end
it "should interpolate a variable in a text expression, \"${$var}\"" do
dump(parse("$a = \"${$var}\"")).should == "(= $a (cat '' (str $var) ''))"
end
it "should interpolate a variable, \"yo${var}yo\"" do
dump(parse("$a = \"yo${var}yo\"")).should == "(= $a (cat 'yo' (str $var) 'yo'))"
end
it "should interpolate any expression in a text expression, \"${$var*2}\"" do
dump(parse("$a = \"yo${$var+2}yo\"")).should == "(= $a (cat 'yo' (str (+ $var 2)) 'yo'))"
end
it "should not interpolate names as variable in expression, \"${notvar*2}\"" do
dump(parse("$a = \"yo${notvar+2}yo\"")).should == "(= $a (cat 'yo' (str (+ notvar 2)) 'yo'))"
end
it "should interpolate name as variable in access expression, \"${var[0]}\"" do
dump(parse("$a = \"yo${var[0]}yo\"")).should == "(= $a (cat 'yo' (str (slice $var 0)) 'yo'))"
end
it "should interpolate name as variable in method call, \"${var.foo}\"" do
dump(parse("$a = \"yo${$var.foo}yo\"")).should == "(= $a (cat 'yo' (str (call-method (. $var foo))) 'yo'))"
end
it "should interpolate name as variable in method call, \"${var.foo}\"" do
dump(parse("$a = \"yo${var.foo}yo\"")).should == "(= $a (cat 'yo' (str (call-method (. $var foo))) 'yo'))"
dump(parse("$a = \"yo${var.foo.bar}yo\"")).should == "(= $a (cat 'yo' (str (call-method (. (call-method (. $var foo)) bar))) 'yo'))"
end
end
end
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