Add rule namespaces: style, lint, layout (#63)

spec/ameba/rule/layout/line_length_spec.cr

@@ -0,0 +1,42 @@
+require "../../../spec_helper"
+
+module Ameba::Rule::Layout
+  subject = LineLength.new
+  long_line = "*" * 81
+
+  describe LineLength do
+    it "passes if all lines are shorter than 80 symbols" do
+      source = Source.new "short line"
+      subject.catch(source).should be_valid
+    end
+
+    it "passes if line consists of 79 symbols" do
+      source = Source.new "*" * 80
+      subject.catch(source).should be_valid
+    end
+
+    it "fails if there is at least one line longer than 79 symbols" do
+      source = Source.new long_line
+      subject.catch(source).should_not be_valid
+    end
+
+    it "reports rule, pos and message" do
+      source = Source.new long_line, "source.cr"
+      subject.catch(source).should_not be_valid
+
+      issue = source.issues.first
+      issue.rule.should eq subject
+      issue.location.to_s.should eq "source.cr:1:81"
+      issue.message.should eq "Line too long"
+    end
+
+    context "properties" do
+      it "allows to configure max length of the line" do
+        source = Source.new long_line
+        rule = LineLength.new
+        rule.max_length = long_line.size
+        rule.catch(source).should be_valid
+      end
+    end
+  end
+end

spec/ameba/rule/layout/trailing_blank_lines_spec.cr

@@ -0,0 +1,37 @@
+require "../../../spec_helper"
+
+module Ameba::Rule::Layout
+  subject = TrailingBlankLines.new
+
+  describe TrailingBlankLines do
+    it "passes if there is no blank lines at the end" do
+      source = Source.new "no-blankline"
+      subject.catch(source).should be_valid
+    end
+
+    it "fails if there is a blank line at the end of a source" do
+      source = Source.new "a = 1\n \n "
+      subject.catch(source).should_not be_valid
+    end
+
+    it "passes if source is empty" do
+      source = Source.new ""
+      subject.catch(source).should be_valid
+    end
+
+    it "passes if last line is not blank" do
+      source = Source.new "\n\n\n puts 22"
+      subject.catch(source).should be_valid
+    end
+
+    it "reports rule, pos and message" do
+      source = Source.new "a = 1\n\n ", "source.cr"
+      subject.catch(source).should_not be_valid
+
+      issue = source.issues.first
+      issue.rule.should_not be_nil
+      issue.location.to_s.should eq "source.cr:3:1"
+      issue.message.should eq "Blank lines detected at the end of the file"
+    end
+  end
+end

spec/ameba/rule/layout/trailing_whitespace_spec.cr

@@ -0,0 +1,27 @@
+require "../../../spec_helper"
+
+module Ameba::Rule::Layout
+  subject = TrailingWhitespace.new
+
+  describe TrailingWhitespace do
+    it "passes if all lines do not have trailing whitespace" do
+      source = Source.new "no-whispace"
+      subject.catch(source).should be_valid
+    end
+
+    it "fails if there is a line with trailing whitespace" do
+      source = Source.new "whitespace at the end "
+      subject.catch(source).should_not be_valid
+    end
+
+    it "reports rule, pos and message" do
+      source = Source.new "a = 1\n b = 2 ", "source.cr"
+      subject.catch(source).should_not be_valid
+
+      issue = source.issues.first
+      issue.rule.should_not be_nil
+      issue.location.to_s.should eq "source.cr:2:7"
+      issue.message.should eq "Trailing whitespace detected"
+    end
+  end
+end