159 lines
3.2 KiB
Ruby
159 lines
3.2 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 '.colorize_line' do
|
|
let(:object) { described_class }
|
|
|
|
subject { object.colorize_line(line) }
|
|
|
|
context 'line beginning with "+"' do
|
|
let(:line) { '+line' }
|
|
|
|
it { should eql(Mutant::Color::GREEN.format(line)) }
|
|
end
|
|
|
|
context 'line beginning with "-"' do
|
|
let(:line) { '-line' }
|
|
|
|
it { should eql(Mutant::Color::RED.format(line)) }
|
|
end
|
|
|
|
context 'line beginning in other char' do
|
|
let(:line) { ' line' }
|
|
|
|
it { should eql(line) }
|
|
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
|