X-Git-Url: http://nitlanguage.org

diff --git a/src/testing/testing_doc.nit b/src/testing/testing_doc.nit
index 1d4490f..cadf871 100644
--- a/src/testing/testing_doc.nit
+++ b/src/testing/testing_doc.nit
@@ -15,12 +15,17 @@
 # Testing from code comments.
 module testing_doc
 
+private import parser_util
 import testing_base
-intrude import docdown
+import markdown
+import html
 
 # Extractor, Executor and Reporter for the tests in a module
 class NitUnitExecutor
-	super Doc2Mdwn
+	super HTMLDecorator
+
+	# Toolcontext used to parse Nit code blocks.
+	var toolcontext: ToolContext
 
 	# The prefix of the generated Nit source-file
 	var prefix: String
@@ -31,65 +36,44 @@ class NitUnitExecutor
 	# The XML node associated to the module
 	var testsuite: HTMLTag
 
-	# All blocks of code from a same `ADoc`
-	var blocks = new Array[Array[String]]
+	# The current test-case xml element
+	var tc: HTMLTag is noautoinit
 
 	# All failures from a same `ADoc`
 	var failures = new Array[String]
 
-	redef fun process_code(n: HTMLTag, text: String, tag: nullable String)
-	do
-		# Skip non-blocks
-		if n.tag != "pre" then return
-
-		# Skip strict non-nit
-		if tag != null and tag != "nit" and tag != "" then
-			return
-		end
-
-		# Try to parse it
-		var ast = toolcontext.parse_something(text)
+	# Markdown processor used to parse markdown comments and extract code.
+	var mdproc = new MarkdownProcessor
 
-		# Skip pure comments
-		if ast isa TComment then return
-
-		# We want executable code
-		if not (ast isa AModule or ast isa ABlockExpr or ast isa AExpr) then
-			var message = ""
-			if ast isa AError then message = " At {ast.location}: {ast.message}."
-			toolcontext.warning(ndoc.location, "invalid-block", "Error: There is a block of code that is not valid Nit, thus not considered a nitunit. To suppress this warning, enclose the block with a fence tagged `nitish` or `raw` (see `man nitdoc`).{message}")
-			failures.add("{ndoc.location}: Invalid block of code.{message}")
-			return
-		end
-
-		# Create a first block
-		# Or create a new block for modules that are more than a main part
-		if blocks.is_empty or ast isa AModule then
-			blocks.add(new Array[String])
-		end
-
-		# Add it to the file
-		blocks.last.add(text)
+	init do
+		mdproc.emitter.decorator = new NitunitDecorator(self)
 	end
 
-	# The associated node to localize warnings
-	var ndoc: nullable ADoc = null
+	# The associated documentation object
+	var mdoc: nullable MDoc = null
 
 	# used to generate distinct names
 	var cpt = 0
 
+	# The last docunit extracted from a mdoc.
+	#
+	# Is used because a new code-block might just be added to it.
+	var last_docunit: nullable DocUnit = null
+
 	# The entry point for a new `ndoc` node
 	# Fill `docunits` with new discovered unit of tests.
 	#
 	# `tc` (testcase) is the pre-filled XML node
-	fun extract(ndoc: ADoc, tc: HTMLTag)
+	fun extract(mdoc: MDoc, tc: HTMLTag)
 	do
-		blocks.clear
+		last_docunit = null
 		failures.clear
+		self.tc = tc
 
-		self.ndoc = ndoc
+		self.mdoc = mdoc
 
-		work(ndoc.to_mdoc)
+		# Populate `blocks` from the markdown decorator
+		mdproc.process(mdoc.content.join("\n"))
 
 		toolcontext.check_errors
 
@@ -98,15 +82,10 @@ class NitUnitExecutor
 				var ne = new HTMLTag("failure")
 				ne.attr("message", msg)
 				tc.add ne
+				toolcontext.modelbuilder.unit_entities += 1
 				toolcontext.modelbuilder.failed_entities += 1
 			end
-			if blocks.is_empty then testsuite.add(tc)
-		end
-
-		if blocks.is_empty then return
-
-		for block in blocks do
-			docunits.add new DocUnit(ndoc, tc, block.join(""))
+			if last_docunit == null then testsuite.add(tc)
 		end
 	end
 
@@ -127,6 +106,10 @@ class NitUnitExecutor
 		end
 
 		test_simple_docunits(simple_du)
+
+		for du in docunits do
+			testsuite.add du.to_xml
+		end
 	end
 
 	# Executes multiples doc-units in a shared program.
@@ -179,30 +162,17 @@ class NitUnitExecutor
 			toolcontext.modelbuilder.unit_entities += 1
 			i += 1
 			toolcontext.info("Execute doc-unit {du.testcase.attrs["name"]} in {file} {i}", 1)
-			var res2 = sys.system("{file.to_program_name}.bin {i} >>'{file}.out1' 2>&1 </dev/null")
-
-			var msg
-			f = new FileReader.open("{file}.out1")
-			var n2
-			n2 = new HTMLTag("system-err")
-			tc.add n2
-			msg = f.read_all
-			f.close
+			var res2 = toolcontext.safe_exec("{file.to_program_name}.bin {i} >'{file}.out1' 2>&1 </dev/null")
 
-			n2 = new HTMLTag("system-out")
-			tc.add n2
-			n2.append(du.block)
+			var content = "{file}.out1".to_path.read_all
+			var msg = content.trunc(8192).filter_nonprintable
 
 			if res2 != 0 then
-				var ne = new HTMLTag("error")
-				ne.attr("message", msg)
-				tc.add ne
-				toolcontext.warning(du.ndoc.location, "error", "ERROR: {tc.attrs["classname"]}.{tc.attrs["name"]} (in {file}): {msg}")
+				du.error = content
+				toolcontext.warning(du.location, "error", "ERROR: {tc.attrs["classname"]}.{tc.attrs["name"]} (in {file}): Runtime error\n{msg}")
 				toolcontext.modelbuilder.failed_entities += 1
 			end
 			toolcontext.check_errors
-
-			testsuite.add(tc)
 		end
 	end
 
@@ -228,38 +198,22 @@ class NitUnitExecutor
 		var res = compile_unitfile(file)
 		var res2 = 0
 		if res == 0 then
-			res2 = sys.system("{file.to_program_name}.bin >>'{file}.out1' 2>&1 </dev/null")
+			res2 = toolcontext.safe_exec("{file.to_program_name}.bin >'{file}.out1' 2>&1 </dev/null")
 		end
 
-		var msg
-		f = new FileReader.open("{file}.out1")
-		var n2
-		n2 = new HTMLTag("system-err")
-		tc.add n2
-		msg = f.read_all
-		f.close
-
-		n2 = new HTMLTag("system-out")
-		tc.add n2
-		n2.append(du.block)
+		var content = "{file}.out1".to_path.read_all
+		var msg = content.trunc(8192).filter_nonprintable
 
 
 		if res != 0 then
-			var ne = new HTMLTag("failure")
-			ne.attr("message", msg)
-			tc.add ne
-			toolcontext.warning(du.ndoc.location, "failure", "FAILURE: {tc.attrs["classname"]}.{tc.attrs["name"]} (in {file}): {msg}")
+			du.error = content
+			toolcontext.warning(du.location, "failure", "FAILURE: {tc.attrs["classname"]}.{tc.attrs["name"]} (in {file}):\n{msg}")
 			toolcontext.modelbuilder.failed_entities += 1
 		else if res2 != 0 then
-			var ne = new HTMLTag("error")
-			ne.attr("message", msg)
-			tc.add ne
-			toolcontext.warning(du.ndoc.location, "error", "ERROR: {tc.attrs["classname"]}.{tc.attrs["name"]} (in {file}): {msg}")
+			toolcontext.warning(du.location, "error", "ERROR: {tc.attrs["classname"]}.{tc.attrs["name"]} (in {file}):\n{msg}")
 			toolcontext.modelbuilder.failed_entities += 1
 		end
 		toolcontext.check_errors
-
-		testsuite.add(tc)
 	end
 
 	# Create and fill the header of a unit file `file`.
@@ -290,32 +244,152 @@ class NitUnitExecutor
 	# Can terminate the program if the compiler is not found
 	private fun compile_unitfile(file: String): Int
 	do
-		var nit_dir = toolcontext.nit_dir
-		var nitg = nit_dir/"bin/nitg"
-		if not nitg.file_exists then
-			toolcontext.error(null, "Cannot find nitg. Set envvar NIT_DIR.")
-			toolcontext.check_errors
-		end
+		var nitc = toolcontext.find_nitc
 		var opts = new Array[String]
 		if mmodule != null then
-			opts.add "-I {mmodule.location.file.filename.dirname}"
+			opts.add "-I {mmodule.filepath.dirname}"
 		end
-		var cmd = "{nitg} --ignore-visibility --no-color '{file}' {opts.join(" ")} >'{file}.out1' 2>&1 </dev/null -o '{file}.bin'"
-		var res = sys.system(cmd)
+		var cmd = "{nitc} --ignore-visibility --no-color '{file}' {opts.join(" ")} >'{file}.out1' 2>&1 </dev/null -o '{file}.bin'"
+		var res = toolcontext.safe_exec(cmd)
 		return res
 	end
 end
 
-# A unit-test to run
+private class NitunitDecorator
+	super HTMLDecorator
+
+	var executor: NitUnitExecutor
+
+	redef fun add_code(v, block) do
+		var code = block.raw_content
+		var meta = block.meta or else "nit"
+		# Do not try to test non-nit code.
+		if meta != "nit" then return
+		# Try to parse code blocks
+		var ast = executor.toolcontext.parse_something(code)
+
+		var mdoc = executor.mdoc
+		assert mdoc != null
+
+		# Skip pure comments
+		if ast isa TComment then return
+
+		# The location is computed according to the starts of the mdoc and the block
+		# Note, the following assumes that all the comments of the mdoc are correctly aligned.
+		var loc = block.block.location
+		var line_offset = loc.line_start + mdoc.location.line_start - 2
+		var column_offset = loc.column_start + mdoc.location.column_start
+		# Hack to handle precise location in blocks
+		# TODO remove when markdown is more reliable
+		if block isa BlockFence then
+			# Skip the starting fence
+			line_offset += 1
+		else
+			# Account a standard 4 space indentation
+			column_offset += 4
+		end
+
+		# We want executable code
+		if not (ast isa AModule or ast isa ABlockExpr or ast isa AExpr) then
+			var message
+			var l = ast.location
+			# Get real location of the node (or error)
+			var location = new Location(mdoc.location.file,
+				l.line_start + line_offset,
+				l.line_end + line_offset,
+				l.column_start + column_offset,
+				l.column_end + column_offset)
+			if ast isa AError then
+				message = ast.message
+			else
+				message = "Error: Invalid Nit code."
+			end
+
+			executor.toolcontext.warning(location, "invalid-block", "{message} To suppress this message, enclose the block with a fence tagged `nitish` or `raw` (see `man nitdoc`).")
+			executor.failures.add("{location}: {message}")
+			return
+		end
+
+		# Create a first block
+		# Or create a new block for modules that are more than a main part
+		var last_docunit = executor.last_docunit
+		if last_docunit == null or ast isa AModule then
+			last_docunit = new DocUnit(executor.mdoc.as(not null), executor.tc, "")
+			executor.docunits.add last_docunit
+		end
+
+		# Add it to the file
+		last_docunit.block += code
+
+		# In order to retrieve precise positions,
+		# the real position of each line of the raw_content is stored.
+		# See `DocUnit::real_location`
+		line_offset -= loc.line_start - 1
+		for i in [loc.line_start..loc.line_end] do
+			last_docunit.lines.add i + line_offset
+			last_docunit.columns.add column_offset
+		end
+	end
+end
+
+# A unit-test extracted from some documentation.
+#
+# A docunit is extracted from the code-blocks of mdocs.
+# Each mdoc can contains more than one docunit, and a single docunit can be made of more that a single code-block.
 class DocUnit
+	super UnitTest
+
 	# The doc that contains self
 	var mdoc: MDoc
 
 	# The XML node that contains the information about the execution
 	var testcase: HTMLTag
 
-	# The text of the code to execute
+	# The text of the code to execute.
+	#
+	# This is the verbatim content on one, or more, code-blocks from `mdoc`
 	var block: String
+
+	# For each line in `block`, the associated line in the mdoc
+	#
+	# Is used to give precise locations
+	var lines = new Array[Int]
+
+	# For each line in `block`, the associated column in the mdoc
+	#
+	# Is used to give precise locations
+	var columns = new Array[Int]
+
+	# The location of the whole docunit.
+	#
+	# If `self` is made of multiple code-blocks, then the location
+	# starts at the first code-books and finish at the last one, thus includes anything between.
+	var location: Location is lazy do
+		return new Location(mdoc.location.file, lines.first, lines.last+1, columns.first+1, 0)
+	end
+
+	# Compute the real location of a node on the `ast` based on `mdoc.location`
+	#
+	# The result is basically: ast_location + markdown location of the piece + mdoc.location
+	#
+	# The fun is that a single docunit can be made of various pieces of code blocks.
+	fun real_location(ast_location: Location): Location
+	do
+		var mdoc = self.mdoc
+		var res = new Location(mdoc.location.file, lines[ast_location.line_start-1],
+			lines[ast_location.line_end-1],
+			columns[ast_location.line_start-1] + ast_location.column_start,
+			columns[ast_location.line_end-1] + ast_location.column_end)
+		return res
+	end
+
+	redef fun to_xml
+	do
+		var res = super
+		res.open("system-out").append(block)
+		return res
+	end
+
 end
 
 redef class ModelBuilder
@@ -344,10 +418,10 @@ redef class ModelBuilder
 		# usualy, only the original module must be imported in the unit test.
 		var o = mmodule
 		var g = o.mgroup
-		if g != null and g.mproject.name == "standard" then
-			# except for a unit test in a module of standard
-			# in this case, the whole standard must be imported
-			o = get_mmodule_by_name(nmodule, g, g.mproject.name).as(not null)
+		if g != null and g.mpackage.name == "core" then
+			# except for a unit test in a module of `core`
+			# in this case, the whole `core` must be imported
+			o = get_mmodule_by_name(nmodule, g, g.mpackage.name).as(not null)
 		end
 
 		ts.attr("package", mmodule.full_name)
@@ -369,7 +443,7 @@ redef class ModelBuilder
 			# NOTE: jenkins expects a '.' in the classname attr
 			tc.attr("classname", "nitunit." + mmodule.full_name + ".<module>")
 			tc.attr("name", "<module>")
-			d2m.extract(ndoc, tc)
+			d2m.extract(ndoc.to_mdoc, tc)
 		end label x
 		for nclassdef in nmodule.n_classdefs do
 			var mclassdef = nclassdef.mclassdef
@@ -382,7 +456,7 @@ redef class ModelBuilder
 					tc = new HTMLTag("testcase")
 					tc.attr("classname", "nitunit." + mmodule.full_name + "." + mclassdef.mclass.full_name)
 					tc.attr("name", "<class>")
-					d2m.extract(ndoc, tc)
+					d2m.extract(ndoc.to_mdoc, tc)
 				end
 			end
 			for npropdef in nclassdef.n_propdefs do
@@ -395,7 +469,7 @@ redef class ModelBuilder
 					tc = new HTMLTag("testcase")
 					tc.attr("classname", "nitunit." + mmodule.full_name + "." + mclassdef.mclass.full_name)
 					tc.attr("name", mpropdef.mproperty.full_name)
-					d2m.extract(ndoc, tc)
+					d2m.extract(ndoc.to_mdoc, tc)
 				end
 			end
 		end
@@ -404,4 +478,67 @@ redef class ModelBuilder
 
 		return ts
 	end
+
+	# Extracts and executes all the docunits in the readme of the `mgroup`
+	# Returns a JUnit-compatible `<testsuite>` XML element that contains the results of the executions.
+	fun test_group(mgroup: MGroup): HTMLTag
+	do
+		var ts = new HTMLTag("testsuite")
+		toolcontext.info("nitunit: doc-unit group {mgroup}", 2)
+
+		# usually, only the default module must be imported in the unit test.
+		var o = mgroup.default_mmodule
+
+		ts.attr("package", mgroup.full_name)
+
+		var prefix = toolcontext.test_dir
+		prefix = prefix.join_path(mgroup.to_s)
+		var d2m = new NitUnitExecutor(toolcontext, prefix, o, ts)
+
+		var tc
+
+		total_entities += 1
+		var mdoc = mgroup.mdoc
+		if mdoc == null then return ts
+
+		doc_entities += 1
+		tc = new HTMLTag("testcase")
+		# NOTE: jenkins expects a '.' in the classname attr
+		tc.attr("classname", "nitunit." + mgroup.full_name)
+		tc.attr("name", "<group>")
+		d2m.extract(mdoc, tc)
+
+		d2m.run_tests
+
+		return ts
+	end
+
+	# Test a document object unrelated to a Nit entity
+	fun test_mdoc(mdoc: MDoc): HTMLTag
+	do
+		var ts = new HTMLTag("testsuite")
+		var file = mdoc.location.to_s
+
+		toolcontext.info("nitunit: doc-unit file {file}", 2)
+
+		ts.attr("package", file)
+
+		var prefix = toolcontext.test_dir / "file"
+		var d2m = new NitUnitExecutor(toolcontext, prefix, null, ts)
+
+		var tc
+
+		total_entities += 1
+		doc_entities += 1
+
+		tc = new HTMLTag("testcase")
+		# NOTE: jenkins expects a '.' in the classname attr
+		tc.attr("classname", "nitunit.<file>")
+		tc.attr("name", file)
+
+		d2m.extract(mdoc, tc)
+		d2m.run_tests
+
+		return ts
+	end
 end