158 lines
3.3 KiB
Ruby
158 lines
3.3 KiB
Ruby
RSpec.describe Mutant::Diff do
|
|
let(:object) { described_class }
|
|
|
|
describe '.build' do
|
|
|
|
subject { object.build(old_string, new_string) }
|
|
|
|
let(:old_string) { "foo\nbar" }
|
|
let(:new_string) { "bar\nbaz" }
|
|
|
|
it { should eql(Mutant::Diff.new(%w[foo bar], %w[bar baz])) }
|
|
|
|
end
|
|
|
|
describe '#colorized_diff' do
|
|
let(:object) { described_class.new(old, new) }
|
|
|
|
subject { object.colorized_diff }
|
|
|
|
context 'when there is a diff at begin of hunk' do
|
|
let(:old) { %w[foo bar] }
|
|
let(:new) { %w[baz bar] }
|
|
|
|
let(:expectation) do
|
|
[
|
|
"@@ -1,3 +1,3 @@\n",
|
|
Mutant::Color::RED.format("-foo\n"),
|
|
Mutant::Color::GREEN.format("+baz\n"),
|
|
" bar\n"
|
|
].join
|
|
end
|
|
|
|
it { should eql(expectation) }
|
|
|
|
it_should_behave_like 'an idempotent method'
|
|
end
|
|
end
|
|
|
|
describe '#diff' do
|
|
let(:object) { described_class.new(old, new) }
|
|
|
|
subject { object.diff }
|
|
|
|
context 'when there is a diff at begin of hunk' do
|
|
let(:old) { %w[foo bar] }
|
|
let(:new) { %w[baz bar] }
|
|
|
|
let(:expectation) do
|
|
strip_indent(<<-STR)
|
|
@@ -1,3 +1,3 @@
|
|
-foo
|
|
+baz
|
|
bar
|
|
STR
|
|
end
|
|
|
|
it { should eql(expectation) }
|
|
|
|
it_should_behave_like 'an idempotent method'
|
|
end
|
|
|
|
context 'when there is a diff NOT at begin of hunk' do
|
|
let(:old) { %w[foo bar] }
|
|
let(:new) { %w[foo baz bar] }
|
|
|
|
let(:expectation) do
|
|
strip_indent(<<-STR)
|
|
@@ -1,3 +1,4 @@
|
|
foo
|
|
+baz
|
|
bar
|
|
STR
|
|
end
|
|
|
|
it { should eql(expectation) }
|
|
|
|
it_should_behave_like 'an idempotent method'
|
|
end
|
|
|
|
context 'when the diff has a long context at begin' do
|
|
let(:old) { %w[foo bar baz boz a b c] }
|
|
let(:new) { %w[foo bar baz boz a b c other] }
|
|
|
|
let(:expectation) do
|
|
strip_indent(<<-STR)
|
|
@@ -1,8 +1,9 @@
|
|
foo
|
|
bar
|
|
baz
|
|
boz
|
|
a
|
|
b
|
|
c
|
|
+other
|
|
STR
|
|
end
|
|
|
|
it { should eql(expectation) }
|
|
|
|
it_should_behave_like 'an idempotent method'
|
|
end
|
|
|
|
context 'when the diff has a long context at end, deleting' do
|
|
let(:old) { %w[other foo bar baz boz a b c] }
|
|
let(:new) { %w[foo bar baz boz a b c] }
|
|
|
|
let(:expectation) do
|
|
strip_indent(<<-STR)
|
|
@@ -1,9 +1,8 @@
|
|
-other
|
|
foo
|
|
bar
|
|
baz
|
|
boz
|
|
a
|
|
b
|
|
c
|
|
STR
|
|
end
|
|
|
|
it { should eql(expectation) }
|
|
|
|
it_should_behave_like 'an idempotent method'
|
|
end
|
|
|
|
context 'when the diff has a long context at end, inserting' do
|
|
let(:old) { %w[foo bar baz boz a b c] }
|
|
let(:new) { %w[other foo bar baz boz a b c] }
|
|
|
|
let(:expectation) do
|
|
strip_indent(<<-STR)
|
|
@@ -1,8 +1,9 @@
|
|
+other
|
|
foo
|
|
bar
|
|
baz
|
|
boz
|
|
a
|
|
b
|
|
c
|
|
STR
|
|
end
|
|
|
|
it { should eql(expectation) }
|
|
|
|
it_should_behave_like 'an idempotent method'
|
|
end
|
|
|
|
context 'when there is no diff' do
|
|
let(:old) { '' }
|
|
let(:new) { '' }
|
|
|
|
it { should be(nil) }
|
|
|
|
it_should_behave_like 'an idempotent method'
|
|
end
|
|
end
|
|
end
|