mirror of
https://github.com/tesseract-ocr/tesseract.git
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8e7b1119b5
Hopefully this improves the test coverage. Signed-off-by: Stefan Weil <sw@weilnetz.de>
163 lines
5.8 KiB
C++
163 lines
5.8 KiB
C++
// (C) Copyright 2017, Google Inc.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "commandlineflags.h"
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#include "include_gunit.h"
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// Flags used for testing parser.
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INT_PARAM_FLAG(foo_int, 0, "Integer flag for testing");
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INT_PARAM_FLAG(bar_int, 0, "Integer flag for testing");
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DOUBLE_PARAM_FLAG(foo_double, 0.1, "Double flag for testing");
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DOUBLE_PARAM_FLAG(bar_double, 0.2, "Double flag for testing");
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STRING_PARAM_FLAG(foo_string, "foo", "String flag for testing");
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STRING_PARAM_FLAG(bar_string, "bar", "String flag for testing");
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BOOL_PARAM_FLAG(foo_bool, false, "Bool flag for testing");
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BOOL_PARAM_FLAG(bar_bool, false, "Bool flag for testing");
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// A flag whose name is a single character, tested for backward
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// compatibility. This should be selected to not conflict with existing flags
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// in commontraining.cpp.
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STRING_PARAM_FLAG(q, "", "Single character name");
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namespace {
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class CommandlineflagsTest : public ::testing::Test {
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protected:
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void SetUp() {
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std::locale::global(std::locale(""));
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}
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void TestParser(int argc, const char** const_argv) {
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TestParser("", argc, const_argv);
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}
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void TestParser(const char* usage, int argc, const char** const_argv) {
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// Make a copy of the pointer since it can be altered by the function.
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char** argv = const_cast<char**>(const_argv);
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tesseract::ParseCommandLineFlags(usage, &argc, &argv, true);
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}
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};
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TEST_F(CommandlineflagsTest, RemoveFlags) {
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const char* const_argv[] = {"Progname", "--foo_int", "3", "file1.h",
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"file2.h"};
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int argc = ARRAYSIZE(const_argv);
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char** argv = const_cast<char**>(const_argv);
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tesseract::ParseCommandLineFlags(argv[0], &argc, &argv, true);
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// argv should be rearranged to look like { "Progname", "file1.h", "file2.h" }
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EXPECT_EQ(3, argc);
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EXPECT_STREQ("Progname", argv[0]);
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EXPECT_STREQ("file1.h", argv[1]);
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EXPECT_STREQ("file2.h", argv[2]);
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}
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#if 0 // TODO: this test needs an update (it currently fails).
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TEST_F(CommandlineflagsTest, PrintUsageAndExit) {
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const char* argv[] = { "Progname", "--help" };
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EXPECT_EXIT(TestParser("Progname [flags]", ARRAYSIZE(argv), argv),
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::testing::ExitedWithCode(0),
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"USAGE: Progname \\[flags\\]");
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}
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#endif
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TEST_F(CommandlineflagsTest, ExitsWithErrorOnInvalidFlag) {
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const char* argv[] = {"", "--test_nonexistent_flag"};
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EXPECT_EXIT(TestParser(ARRAYSIZE(argv), argv), ::testing::ExitedWithCode(1),
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"ERROR: Non-existent flag");
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}
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TEST_F(CommandlineflagsTest, ParseIntegerFlags) {
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const char* argv[] = {"", "--foo_int=3", "--bar_int", "-4"};
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TestParser(ARRAYSIZE(argv), argv);
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EXPECT_EQ(3, FLAGS_foo_int);
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EXPECT_EQ(-4, FLAGS_bar_int);
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const char* arg_no_value[] = {"", "--bar_int"};
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EXPECT_EXIT(TestParser(ARRAYSIZE(arg_no_value), arg_no_value),
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::testing::ExitedWithCode(1), "ERROR");
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const char* arg_invalid_value[] = {"", "--bar_int", "--foo_int=3"};
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EXPECT_EXIT(TestParser(ARRAYSIZE(arg_invalid_value), arg_invalid_value),
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::testing::ExitedWithCode(1), "ERROR");
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const char* arg_bad_format[] = {"", "--bar_int="};
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EXPECT_EXIT(TestParser(ARRAYSIZE(arg_bad_format), arg_bad_format),
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::testing::ExitedWithCode(1), "ERROR");
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}
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TEST_F(CommandlineflagsTest, ParseDoubleFlags) {
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const char* argv[] = {"", "--foo_double=3.14", "--bar_double", "1.2"};
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TestParser(ARRAYSIZE(argv), argv);
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EXPECT_EQ(3.14, FLAGS_foo_double);
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EXPECT_EQ(1.2, FLAGS_bar_double);
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const char* arg_no_value[] = {"", "--bar_double"};
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EXPECT_EXIT(TestParser(2, arg_no_value), ::testing::ExitedWithCode(1),
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"ERROR");
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const char* arg_bad_format[] = {"", "--bar_double="};
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EXPECT_EXIT(TestParser(2, arg_bad_format), ::testing::ExitedWithCode(1),
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"ERROR");
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}
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TEST_F(CommandlineflagsTest, ParseStringFlags) {
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const char* argv[] = {"", "--foo_string=abc", "--bar_string", "def"};
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TestParser(ARRAYSIZE(argv), argv);
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EXPECT_STREQ("abc", FLAGS_foo_string.c_str());
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EXPECT_STREQ("def", FLAGS_bar_string.c_str());
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const char* arg_no_value[] = {"", "--bar_string"};
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EXPECT_EXIT(TestParser(2, arg_no_value), ::testing::ExitedWithCode(1),
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"ERROR");
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FLAGS_bar_string.set_value("bar");
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const char* arg_empty_string[] = {"", "--bar_string="};
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TestParser(2, arg_empty_string);
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EXPECT_STREQ("", FLAGS_bar_string.c_str());
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}
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TEST_F(CommandlineflagsTest, ParseBoolFlags) {
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const char* argv[] = {"", "--foo_bool=true", "--bar_bool=1"};
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FLAGS_foo_bool.set_value(false);
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FLAGS_bar_bool.set_value(false);
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TestParser(ARRAYSIZE(argv), argv);
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// Verify changed value
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EXPECT_TRUE(FLAGS_foo_bool);
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EXPECT_TRUE(FLAGS_bar_bool);
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const char* inv_argv[] = {"", "--foo_bool=false", "--bar_bool=0"};
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FLAGS_foo_bool.set_value(true);
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FLAGS_bar_bool.set_value(true);
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TestParser(3, inv_argv);
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// Verify changed value
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EXPECT_FALSE(FLAGS_foo_bool);
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EXPECT_FALSE(FLAGS_bar_bool);
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const char* arg_implied_true[] = {"", "--bar_bool"};
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FLAGS_bar_bool.set_value(false);
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TestParser(2, arg_implied_true);
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EXPECT_TRUE(FLAGS_bar_bool);
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const char* arg_missing_val[] = {"", "--bar_bool="};
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EXPECT_EXIT(TestParser(2, arg_missing_val), ::testing::ExitedWithCode(1),
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"ERROR");
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}
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TEST_F(CommandlineflagsTest, ParseOldFlags) {
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EXPECT_STREQ("", FLAGS_q.c_str());
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const char* argv[] = {"", "-q", "text"};
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TestParser(ARRAYSIZE(argv), argv);
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EXPECT_STREQ("text", FLAGS_q.c_str());
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}
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} // namespace
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