Initial commit.

test/dcat_test.dart

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+import 'package:test/test.dart';
+
+import '../bin/dcat.dart' as dcat;
+
+void main() {
+  final List<String> log = [];
+  int exitCode;
+
+  test('Test Help', () async {
+    expect(dcat.main(['-h']), completion(equals(0)));
+    expect(dcat.main(['--help']), completion(equals(0)));
+    exitCode = await dcat.main(['-h']);
+    expect(exitCode, equals(dcat.exitSuccess));
+  });
+
+  test('Test --version', () async {
+    expect(dcat.main(['--version']), completion(equals(0)));
+    exitCode = await dcat.main(['--version']);
+    expect(exitCode, equals(dcat.exitSuccess));
+  });
+
+  test('Test directory', () async {
+    exitCode = await dcat.main(['bin']);
+    expect(exitCode, equals(dcat.exitFailure));
+  });
+
+  test('Test missing file', () async {
+    exitCode = await dcat.main(['foo']);
+    expect(exitCode, equals(dcat.exitFailure), reason: 'foo not found');
+    exitCode = await dcat.main(['bin/dcat.dart', 'foo']);
+    expect(exitCode, equals(dcat.exitFailure), reason: 'one missing file');
+  });
+
+  test('Test cat source', () async {
+    await dcat.cat(['bin/dcat.dart'], log: log);
+    expect(log.isEmpty, false, reason: 'log is empty');
+    expect(log.first, startsWith('// Copyright (c)'), reason: 'has copyright');
+    expect(log.last, equals('}'));
+  });
+
+  test('Test cat -n source', () async {
+    exitCode =
+        await dcat.cat(['bin/dcat.dart'], log: log, showLineNumbers: true);
+    expect(exitCode, 0, reason: 'result code is 0');
+    expect(log.first, startsWith('1: // Copyright (c)'),
+        reason: 'has copyright');
+    expect(log.last, endsWith(': }'), reason: 'last line');
+    for (final String line in log) {
+      expect(line, matches('^\\d+: .*'), reason: 'has line number');
+    }
+  });
+
+  test('Test cat -E', () async {
+    await dcat.cat(['test/test.txt'], log: log, showEnds: true);
+    var hasBlank = false;
+    for (final String line in log) {
+      expect(line, endsWith('\$'));
+      if (line == '\$') {
+        hasBlank = true;
+      }
+    }
+    expect(hasBlank, true, reason: 'has blank line');
+  });
+
+  test('Test cat -bE', () async {
+    await dcat
+        .cat(['test/test.txt'], log: log, numberNonBlank: true, showEnds: true);
+    var hasBlank = false;
+    for (final String line in log) {
+      expect(line, endsWith('\$'));
+      if (line.contains(RegExp(r'^\d+: .*\$$'))) {
+        hasBlank = true;
+      }
+    }
+    expect(hasBlank, true, reason: 'has blank line');
+  });
+
+  test('Test cat -T', () async {
+    await dcat.cat(['test/test.txt'], log: log, showTabs: true);
+    var hasTab = false;
+    for (final String line in log) {
+      if (line.startsWith('^I')) {
+        hasTab = true;
+        break;
+      }
+    }
+    expect(hasTab, true, reason: 'has tab');
+  });
+
+  test('Test cat -s', () async {
+    await dcat.cat(['test/test.txt'], log: log, squeezeBlank: true);
+    var hasSqueeze = true;
+    var prevLine = 'foo';
+    for (final String line in log) {
+      if (line == prevLine) {
+        hasSqueeze = false;
+      }
+      prevLine = line;
+    }
+    expect(hasSqueeze, true, reason: 'has squeeze');
+  });
+}

test/test.txt

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+Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
+
+	Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
+	Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
+
+
+Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.