various test/coverage optimization

Makefile

@@ -99,7 +99,7 @@ $(INSTALL_DIR)/koreader/.luacov:
 
 testfront: $(INSTALL_DIR)/koreader/.busted
 	# sdr files may have unexpected impact on unit testing
-	rm -rf spec/unit/data/*.sdr
+	-rm -rf spec/unit/data/*.sdr
 	cd $(INSTALL_DIR)/koreader && ./luajit $(shell which busted) \
 		--sort-files \
 		--no-auto-insulate \
@@ -110,8 +110,10 @@ test:
 	$(MAKE) testfront
 
 coverage: $(INSTALL_DIR)/koreader/.luacov
+	-rm -rf $(INSTALL_DIR)/koreader/luacov.*.out
 	cd $(INSTALL_DIR)/koreader && \
 		./luajit $(shell which busted) -o verbose_print \
+			--sort-files \
 			--no-auto-insulate \
 			--coverage --exclude-tags=nocov
 	# coverage report summary

README.md

@@ -78,9 +78,8 @@ Users of Debian and Ubuntu can install the required packages using:
 ```
 sudo apt-get install build-essential git patch wget unzip \
 gettext autoconf cmake libtool nasm luarocks \
-libssl-dev libffi-dev libsdl2-dev libc6-dev-i386 linux-libc-dev:i386
+libssl-dev libffi-dev libsdl2-dev libc6-dev-i386 linux-libc-dev:i386 zlib1g:i386
 ```
-Note that the `linux-libc-dev:i386` package is only necessary for x86_64 machines.
 
 Cross compile toolchains are available for Ubuntu users through these commands:
 ```
@@ -280,8 +279,8 @@ http://ccache.samba.org
 [linux-vm]:http://www.howtogeek.com/howto/11287/how-to-run-ubuntu-in-windows-7-with-vmware-player/
 [l10n-readme]:https://github.com/koreader/koreader/blob/master/l10n/README.md
 [koreader-transifex]:https://www.transifex.com/projects/p/koreader/
-[coverage-badge]:https://coveralls.io/repos/koreader/koreader/badge.svg
-[coverage-link]:https://coveralls.io/r/koreader/koreader
+[coverage-badge]:https://coveralls.io/repos/github/koreader/koreader/badge.svg?branch=master
+[coverage-link]:https://coveralls.io/github/koreader/koreader?branch=master
 [licence-badge]:http://img.shields.io/badge/licence-AGPL-brightgreen.svg
 [gitter-badge]:https://badges.gitter.im/Join%20Chat.svg
 [gitter-link]:https://gitter.im/koreader/koreader?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge

spec/unit/koptinterface_spec.lua

@@ -7,16 +7,25 @@ describe("Koptinterface module", function()
         Cache = require("cache")
     end)
 
-    local sample_pdf = "spec/front/unit/data/tall.pdf"
-    local doc
+    local tall_pdf = "spec/front/unit/data/tall.pdf"
+    local complex_pdf = "spec/front/unit/data/sample.pdf"
+    local paper_pdf = "spec/front/unit/data/paper.pdf"
+    local doc, complex_doc, paper_doc
 
     before_each(function()
-        doc = DocumentRegistry:openDocument(sample_pdf)
+        doc = DocumentRegistry:openDocument(tall_pdf)
+        complex_doc = DocumentRegistry:openDocument(complex_pdf)
+        paper_doc = DocumentRegistry:openDocument(paper_pdf)
+        doc.configurable.text_wrap = 0
+        complex_doc.configurable.text_wrap = 0
+        paper_doc.configurable.text_wrap = 0
         Cache:clear()
     end)
 
     after_each(function()
         doc:close()
+        complex_doc:close()
+        paper_doc:close()
     end)
 
     it("should get auto bbox", function()
@@ -56,7 +65,6 @@ describe("Koptinterface module", function()
         doc.configurable.text_wrap = 1
         local kc = Koptinterface:getCachedContext(doc, 1)
         assert.truthy(kc)
-        doc.configurable.text_wrap = 0
     end)
 
     it("should hint reflowed page in background", function()
@@ -65,7 +73,6 @@ describe("Koptinterface module", function()
         -- and wait for reflowing to complete
         local kc = Koptinterface:getCachedContext(doc, 1)
         assert.truthy(kc)
-        doc.configurable.text_wrap = 0
     end)
 
     it("should get native text boxes", function()
@@ -75,12 +82,69 @@ describe("Koptinterface module", function()
         assert.truthy(lines_in_native_page == 60)
     end)
 
+    it("should get native text boxes from scratch", function()
+        local kc = Koptinterface:getCachedContext(doc, 1)
+        local boxes = Koptinterface:getNativeTextBoxesFromScratch(doc, 1)
+        local lines_in_native_page = #boxes
+        assert.truthy(lines_in_native_page == 60)
+    end)
+
     it("should get reflow text boxes", function()
         doc.configurable.text_wrap = 1
         local kc = Koptinterface:getCachedContext(doc, 1)
         local boxes = Koptinterface:getReflowedTextBoxes(doc, 1)
         local lines_in_reflowed_page = #boxes
         assert.truthy(lines_in_reflowed_page > 60)
-        doc.configurable.text_wrap = 0
+    end)
+
+    it("should get reflow text boxes from scratch", function()
+        doc.configurable.text_wrap = 1
+        local kc = Koptinterface:getCachedContext(doc, 1)
+        local boxes = Koptinterface:getReflowedTextBoxesFromScratch(doc, 1)
+        local lines_in_reflowed_page = #boxes
+        assert.truthy(lines_in_reflowed_page > 60)
+    end)
+
+    it("should get page block of a two-column page", function()
+        for i = 0.3, 0.6, 0.3 do
+            for j = 0.3, 0.6, 0.3 do
+                local block = Koptinterface:getPageBlock(complex_doc, 34, i, j)
+                assert.truthy(block.x1 - block.x0 < 0.5)
+            end
+        end
+    end)
+
+    it("should get word from native position", function()
+        local word_boxes = Koptinterface:getWordFromPosition(complex_doc, {
+            page = 19, x = 400, y = 530,
+        })
+        assert.is.same("previous", word_boxes.word)
+    end)
+
+    it("should get word from reflow position", function()
+        complex_doc.configurable.text_wrap = 1
+        local kc = Koptinterface:getCachedContext(complex_doc, 19)
+        local word_boxes = Koptinterface:getWordFromPosition(complex_doc, {
+            page = 19, x = 320, y = 730,
+        })
+        assert.is.same("examples", word_boxes.word)
+    end)
+
+    it("should get link from native position", function()
+        local link = Koptinterface:getLinkFromPosition(paper_doc, 1, {
+            x = 140, y = 560,
+        })
+        assert.truthy(link)
+        assert.is.same(20, link.page)
+        require("dbg"):v("link", link)
+    end)
+
+    it("should get link from reflow position", function()
+        paper_doc.configurable.text_wrap = 1
+        local link = Koptinterface:getLinkFromPosition(paper_doc, 1, {
+            x = 500, y = 480,
+        })
+        assert.truthy(link)
+        assert.is.same(20, link.page)
     end)
 end)

spec/unit/readerlink_spec.lua

@@ -8,7 +8,7 @@ describe("ReaderLink module", function()
         ReaderUI = require("apps/reader/readerui")
         UIManager = require("ui/uimanager")
         sample_epub = "spec/front/unit/data/leaves.epub"
-        sample_pdf = "spec/front/unit/data/Adaptively.Scaling.The.Metropolis.Algorithm.Using.Expected.Squared.Jumped.Distance.pdf"
+        sample_pdf = "spec/front/unit/data/paper.pdf"
     end)
 
     it("should jump to links in epub", function()