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require 'rails_helper'
describe Utils do
describe "#unindent" do
it "unindents to the level of the greatest consistant indention" do
expect(Utils.unindent(<<-MD)).to eq("Hello World")
Hello World
MD
expect(Utils.unindent(<<-MD)).to eq("Hello World\nThis is\nnot indented")
Hello World
This is
not indented
MD
expect(Utils.unindent(<<-MD)).to eq("Hello World\n This is\n indented\nthough")
Hello World
This is
indented
though
MD
expect(Utils.unindent("Hello\n I am indented")).to eq("Hello\n I am indented")
a = " Events will have the fields you specified. Your options look like:\n\n {\n \"url\": {\n \"css\": \"#comic img\",\n \"value\": \"@src\"\n },\n \"title\": {\n \"css\": \"#comic img\",\n \"value\": \"@title\"\n }\n }\"\n"
expect(Utils.unindent(a)).to eq("Events will have the fields you specified. Your options look like:\n\n {\n \"url\": {\n\"css\": \"#comic img\",\n\"value\": \"@src\"\n },\n \"title\": {\n\"css\": \"#comic img\",\n\"value\": \"@title\"\n }\n }\"")
end
end
describe "#interpolate_jsonpaths" do
let(:payload) { { :there => { :world => "WORLD" }, :works => "should work" } }
it "interpolates jsonpath expressions between matching <>'s" do
expect(Utils.interpolate_jsonpaths("hello <$.there.world> this <escape works>", payload)).to eq("hello WORLD this should+work")
end
it "optionally supports treating values that start with '$' as raw JSONPath" do
expect(Utils.interpolate_jsonpaths("$.there.world", payload)).to eq("$.there.world")
expect(Utils.interpolate_jsonpaths("$.there.world", payload, :leading_dollarsign_is_jsonpath => true)).to eq("WORLD")
end
end
describe "#recursively_interpolate_jsonpaths" do
it "interpolates all string values in a structure" do
struct = {
:int => 5,
:string => "this <escape $.works>",
:array => ["<works>", "now", "<$.there.world>"],
:deep => {
:string => "hello <there.world>",
:hello => :world
}
}
data = { :there => { :world => "WORLD" }, :works => "should work" }
expect(Utils.recursively_interpolate_jsonpaths(struct, data)).to eq({
:int => 5,
:string => "this should+work",
:array => ["should work", "now", "WORLD"],
:deep => {
:string => "hello WORLD",
:hello => :world
}
})
end
end
describe "#value_at" do
it "returns the value at a JSON path" do
expect(Utils.value_at({ :foo => { :bar => :baz }}.to_json, "foo.bar")).to eq("baz")
expect(Utils.value_at({ :foo => { :bar => { :bing => 2 } }}, "foo.bar.bing")).to eq(2)
end
it "returns nil when the path cannot be followed" do
expect(Utils.value_at({ :foo => { :bar => :baz }}, "foo.bing")).to be_nil
end
it "does not eval" do
expect {
Utils.value_at({ :foo => 2 }, "foo[?(@ > 1)]")
}.to raise_error(RuntimeError, /Cannot use .*? eval/)
end
end
describe "#values_at" do
it "returns arrays of matching values" do
expect(Utils.values_at({ :foo => { :bar => :baz }}, "foo.bar")).to eq(%w[baz])
expect(Utils.values_at({ :foo => [ { :bar => :baz }, { :bar => :bing } ]}, "foo[*].bar")).to eq(%w[baz bing])
expect(Utils.values_at({ :foo => [ { :bar => :baz }, { :bar => :bing } ]}, "foo[*].bar")).to eq(%w[baz bing])
end
it "should allow escaping" do
expect(Utils.values_at({ :foo => { :bar => "escape this!?" }}, "escape $.foo.bar")).to eq(["escape+this%21%3F"])
end
end
describe "#jsonify" do
it "escapes </script> tags in the output JSON" do
cleaned_json = Utils.jsonify(:foo => "bar", :xss => "</script><script>alert('oh no!')</script>")
expect(cleaned_json).not_to include("</script>")
expect(cleaned_json).to include('\\u003c/script\\u003e')
end
it "html_safes the output unless :skip_safe is passed in" do
expect(Utils.jsonify({:foo => "bar"})).to be_html_safe
expect(Utils.jsonify({:foo => "bar"}, :skip_safe => false)).to be_html_safe
expect(Utils.jsonify({:foo => "bar"}, :skip_safe => true)).not_to be_html_safe
end
end
describe "#pretty_jsonify" do
it "escapes </script> tags in the output JSON" do
cleaned_json = Utils.pretty_jsonify(:foo => "bar", :xss => "</script><script>alert('oh no!')</script>")
expect(cleaned_json).not_to include("</script>")
expect(cleaned_json).to include("<\\/script>")
end
end
describe "#sort_tuples!" do
let(:tuples) {
time = Time.now
[
[2, "a", time - 1], # 0
[2, "b", time - 1], # 1
[1, "b", time - 1], # 2
[1, "b", time], # 3
[1, "a", time], # 4
[2, "a", time + 1], # 5
[2, "a", time], # 6
]
}
it "sorts tuples like arrays by default" do
expected = tuples.values_at(4, 2, 3, 0, 6, 5, 1)
Utils.sort_tuples!(tuples)
expect(tuples).to eq expected
end
it "sorts tuples in order specified: case 1" do
# order by x1 asc, x2 desc, c3 asc
orders = [false, true, false]
expected = tuples.values_at(2, 3, 4, 1, 0, 6, 5)
Utils.sort_tuples!(tuples, orders)
expect(tuples).to eq expected
end
it "sorts tuples in order specified: case 2" do
# order by x1 desc, x2 asc, c3 desc
orders = [true, false, true]
expected = tuples.values_at(5, 6, 0, 1, 4, 3, 2)
Utils.sort_tuples!(tuples, orders)
expect(tuples).to eq expected
end
it "always succeeds in sorting even if it finds pairs of incomparable objects" do
time = Time.now
tuples = [
[2, "a", time - 1], # 0
[1, "b", nil], # 1
[1, "b", time], # 2
["2", nil, time], # 3
[1, nil, time], # 4
[nil, "a", time + 1], # 5
[2, "a", time], # 6
]
orders = [true, false, true]
expected = tuples.values_at(3, 6, 0, 4, 2, 1, 5)
Utils.sort_tuples!(tuples, orders)
expect(tuples).to eq expected
end
end
context "#parse_duration" do
it "works with correct arguments" do
expect(Utils.parse_duration('2.days')).to eq(2.days)
expect(Utils.parse_duration('2.seconds')).to eq(2)
expect(Utils.parse_duration('2')).to eq(2)
end
it "returns nil when passed nil" do
expect(Utils.parse_duration(nil)).to be_nil
end
it "warns and returns nil when not parseable" do
mock(STDERR).puts("WARNING: Invalid duration format: 'bogus'")
expect(Utils.parse_duration('bogus')).to be_nil
end
end
context "#if_present" do
it "returns nil when passed nil" do
expect(Utils.if_present(nil, :to_i)).to be_nil
end
it "calls the specified method when the argument is present" do
argument = mock()
mock(argument).to_i { 1 }
expect(Utils.if_present(argument, :to_i)).to eq(1)
end
end
end
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