Docs & tests

spec/ameba/rule_spec.cr

@@ -0,0 +1,24 @@
+require "../../spec/spec_helper"
+
+module Ameba
+  describe RULES do
+    it "contains available rules" do
+      Ameba::RULES.empty?.should be_false
+    end
+  end
+
+  describe Rule do
+    describe "#catch" do
+      it "accepts and returns source" do
+        s = Source.new "", ""
+        DummyRule.new.catch(s).should eq s
+      end
+    end
+
+    describe "#name" do
+      it "returns name of the rule" do
+        DummyRule.new.name.should eq "DummyRule"
+      end
+    end
+  end
+end

spec/ameba/rules/line_length_spec.cr

@@ -0,0 +1,28 @@
+require "../../spec_helper"
+
+module Ameba::Rules
+  subject = LineLength.new
+  long_line = "*" * 80
+
+  describe LineLength do
+    it "passes if all lines are shorter than 80 symbols" do
+      source = Source.new "", "short line"
+      subject.catch(source).valid?.should be_true
+    end
+
+    it "fails if there is at least one line longer than 79 symbols" do
+      source = Source.new "", long_line
+      subject.catch(source).valid?.should be_false
+    end
+
+    it "reports rule, pos and message" do
+      source = Source.new "", long_line
+      subject.catch(source).valid?.should be_false
+
+      error = source.errors.first
+      error.rule.should eq subject
+      error.pos.should eq 1
+      error.message.should eq "Line too long (80 symbols)"
+    end
+  end
+end

spec/ameba/source_spec.cr

@@ -0,0 +1,28 @@
+require "../spec_helper"
+
+module Ameba
+  describe Source do
+    describe ".new" do
+      it "allows to create a source by file path" do
+        Source.new(__FILE__).path.should eq __FILE__
+      end
+
+      it "allows to create a source by content and path" do
+        s = Source.new(__FILE__, "content")
+        s.path.should eq __FILE__
+        s.lines.should eq %w(content)
+      end
+    end
+
+    describe "#error" do
+      it "adds and error" do
+        s = Source.new(__FILE__)
+        s.error(DummyRule.new, 23, "Error!")
+        s.errors.size.should eq 1
+        s.errors.first.rule.should_not be_nil
+        s.errors.first.pos.should eq 23
+        s.errors.first.message.should eq "Error!"
+      end
+    end
+  end
+end

spec/ameba_spec.cr

@@ -1,9 +1,4 @@
 require "./spec_helper"
 
 describe Ameba do
-  # TODO: Write tests
-
-  it "works" do
-    false.should eq(true)
-  end
 end

spec/spec_helper.cr

@@ -1,2 +1,7 @@
 require "spec"
 require "../src/ameba"
+
+struct DummyRule < Ameba::Rule
+  def test(source)
+  end
+end