test: Add self-tests for genhtml

Add some tests for checking basic functionality of genhtml.

Signed-off-by: Peter Oberparleiter <[email protected]>

Author: oberpar

test/Makefile

@@ -1,6 +1,6 @@
 include common.mak
 
-TESTDIRS   := $(patsubst %/,%,$(dir $(wildcard */Makefile)))
+TESTDIRS   := $(sort $(patsubst %/,%,$(dir $(wildcard */Makefile))))
 
 help: info
 
@@ -19,7 +19,7 @@ test:
 	done
 
 clean:
-	rm -f *.info *.counts test.log
+	rm -rf *.info *.counts test.log src/
 	for TEST in $(TESTDIRS) ; do \
 		make -C $$TEST clean ; \
 	done

test/bin/mkinfo

@@ -885,6 +885,11 @@ sub main()
 	}
 
 	if (defined($opt_output)) {
+		if (! -d $opt_output) {
+			mkdir($opt_output) or
+				die("$0: Could not create directory ".
+				    "$opt_output: $!\n");
+		}
 		$root = abs_path($opt_output)
 	} else {
 		$root = "/";

test/common.mak

@@ -21,6 +21,7 @@ SIZE         := small
 CC           := gcc
 
 export LCOV := lcov $(LCOVFLAGS)
+export GENHTML := genhtml $(LCOVFLAGS)
 export PATH := $(TOPDIR)/../bin:$(TOPDIR)/bin:$(PATH)
 export LANG := C
 
@@ -40,7 +41,7 @@ clean_common:
 	echo "  CLEAN   $(patsubst %/,%,$(RELDIR))"
 
 $(INFOFILES) $(COUNTFILES):
-	cd $(TOPDIR) && mkinfo profiles/$(SIZE)
+	cd $(TOPDIR) && mkinfo profiles/$(SIZE) -o src/
 
 ifneq ($(V),2)
 .SILENT:

test/genhtml_output/Makefile

@@ -0,0 +1,31 @@
+include ../common.mak
+
+GENHTML_TEST := ./genhtml_test
+
+TESTS := genhtml_output_zero genhtml_output_full genhtml_output_target \
+	 genhtml_output_part1 genhtml_output_part2 genhtml_output_combined
+
+test: $(TESTS)
+
+genhtml_output_zero:
+	@test_run genhtml_output_zero $(GENHTML) $(ZEROINFO) -o out_zero/
+
+genhtml_output_full:
+	@test_run genhtml_output_full $(GENHTML) $(FULLINFO) -o out_full/
+
+genhtml_output_target:
+	@test_run genhtml_output_target $(GENHTML) $(TARGETINFO) -o out_target/
+
+genhtml_output_part1:
+	@test_run genhtml_output_part1 $(GENHTML) $(PART1INFO) -o out_part1/
+
+genhtml_output_part2:
+	@test_run genhtml_output_part2 $(GENHTML) $(PART2INFO) -o out_part2/
+
+genhtml_output_combined: genhtml_output_target
+	@test_run genhtml_output_combined $(GENHTML_TEST) $(TARGETINFO) $(PART1INFO) $(PART2INFO)
+
+clean:
+	rm -rf out_*/
+
+.PHONY: test $(TESTS) clean

test/genhtml_output/genhtml_test

@@ -0,0 +1,36 @@
+#!/bin/bash
+#
+# Copyright IBM Corp. 2017
+#
+# Usage: genhtml_test <ref-file> <file1> [<file2>...]
+#
+# Compare genhtml output of a reference coverage data file with that of
+# a combination of multiple files.
+#
+
+function die()
+{
+	echo "Error: $@" >&2
+	exit 1
+}
+
+GENHTMLFLAGS="-t title"
+REFFILE=$1
+shift
+
+if [ -z "$REFFILE" -o -z "$*" ] ; then
+	echo "Usage: $0 <ref-file> <file1> [<file2>...]" >&2
+	exit 2
+fi
+
+OUTREF="out_$(basename $REFFILE .info)"
+OUTCOMBINED="out_combined"
+
+$GENHTML $GENHTMLFLAGS "$REFFILE" -o "$OUTREF" || \
+	die "Could not generate HTML for reference file"
+
+$GENHTML $GENHTMLFLAGS "$@" -o "$OUTCOMBINED" || \
+	die "Could not generate HTML for combined files"
+
+diff -ur "$OUTREF" "$OUTCOMBINED" -I "headerValue" || \
+	die "Mismatch in generated output"