add import command tests

src/test/data/ImportCommandTest/invalid.csv

@@ -0,0 +1,5 @@
+name,phone,email,gpa,tags,studentNo,previousGrade
+Jasmine David,9847283,jasmine_david@u.nus.edu,4.3,deansList;pastTA,A0123486A,D-
+Sandeep Kopparthi,8753746,sandeep@u.nus.edu,5.0,pastTA,A0456123A,C-
+Lim Boon Kong,9777777,boonkong@u.nus.edu,3.5.2,deansList,A0775848D,C
+Mohammed Taufiq bin Rozaini,85535252,taufiqu.nus.edu,4.2,,A0483910A,A+

src/test/data/ImportCommandTest/missing_fields.csv

@@ -0,0 +1,5 @@
+studentNo,name,phone,email,gpaa,previousGrade,tags
+A0123486A,Jasmine David,98472983,jasmine_david@u.nus.edu,4.3,B+,deansList;pastTA
+A0456123A,Sandeep Kopparthi,86753746,sandeep@u.nus.edu,5.0,B+,pastTA
+A0775848D,Lim Boon Kong,97777777,boonkong@u.nus.edu,3.5,C,deansList
+A0483910A,Mohammed Taufiq bin Rozaini,85535252,taufiq@u.nus.edu,4.2,A+,

src/test/data/ImportCommandTest/partial_valid.csv

@@ -0,0 +1,5 @@
+name,phone,email,gpa,tags,studentNo,previousGrade
+Jasmine David,9847283,jasmine_david@u.nus.edu,4.3,deansList;pastTA,A0123486A,D-
+Sandeep Kopparthi,8753746,sandeep@u.nus.edu,5.0,pastTA,A0456123A,C-
+Lim Boon Kong,97777777,boonkong@u.nus.edu,3.5,deansList,A0775848D,C
+Mohammed Taufiq bin Rozaini,85535252,taufiq@u.nus.edu,4.2,,A0483910A,A+

src/test/data/ImportCommandTest/valid.csv

@@ -0,0 +1,5 @@
+studentNo,name,phone,email,gpa,previousGrade,tags
+A0123486A,Jasmine David,98472983,jasmine_david@u.nus.edu,4.3,B+,deansList;pastTA
+A0456123A,Sandeep Kopparthi,86753746,sandeep@u.nus.edu,5.0,B+,pastTA
+A0775848D,Lim Boon Kong,97777777,boonkong@u.nus.edu,3.5,C,deansList
+A0483910A,Mohammed Taufiq bin Rozaini,85535252,taufiq@u.nus.edu,4.2,A+,

src/test/java/seedu/address/logic/commands/ImportCommandTest.java

@@ -0,0 +1,110 @@
+package seedu.address.logic.commands;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static seedu.address.logic.commands.CommandTestUtil.assertCommandFailure;
+import static seedu.address.testutil.TypicalPersons.getTypicalAddressBook;
+
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import org.junit.jupiter.api.Test;
+
+import seedu.address.logic.commands.exceptions.CommandException;
+import seedu.address.model.Model;
+import seedu.address.model.ModelManager;
+import seedu.address.model.UserPrefs;
+import seedu.address.model.attachment.Attachment;
+
+public class ImportCommandTest {
+
+    private static final Path TEST_DATA_FOLDER = Paths.get("src", "test", "data", "ImportCommandTest");
+    private static final Path VALID_CSV_FILE = TEST_DATA_FOLDER.resolve("valid.csv");
+    private static final Path PARTIAL_VALID_CSV_FILE = TEST_DATA_FOLDER.resolve("partial_valid.csv");
+    private static final Path INVALID_CSV_FILE = TEST_DATA_FOLDER.resolve("invalid.csv");
+    private static final Path MISSING_FIELDS_CSV_FILE = TEST_DATA_FOLDER.resolve("missing_fields.csv");
+    private static final Path INVALID_FORMAT_CSV_FILE = TEST_DATA_FOLDER.resolve("invalid_format.csv");
+
+    private Model model = new ModelManager(getTypicalAddressBook(), new UserPrefs());
+
+    @Test
+    public void execute_validCsv_importSuccessful() throws CommandException {
+        Attachment validCsv = new Attachment(VALID_CSV_FILE.toString());
+        CommandResult commandResult = new ImportCommand(validCsv).execute(model);
+
+        String expectedMessage = String.format(ImportCommand.MESSAGE_IMPORT_SUCCESS, 4);
+
+        assertEquals(expectedMessage, commandResult.getFeedbackToUser());
+    }
+
+    @Test
+    public void execute_partialValidCsv_importPartiallySuccessful() throws CommandException {
+        Attachment partialValidCsv = new Attachment(PARTIAL_VALID_CSV_FILE.toString());
+        CommandResult commandResult = new ImportCommand(partialValidCsv).execute(model);
+
+        String expectedMessage = String.format(ImportCommand.MESSAGE_IMPORT_SUCCESS, 2) + " "
+                + String.format(ImportCommand.MESSAGE_IMPORT_FAILURE, 2, "2, 3");
+
+        assertEquals(expectedMessage, commandResult.getFeedbackToUser());
+    }
+
+    @Test
+    public void execute_invalidCsv_importFailure() throws CommandException {
+        Attachment invalidCsv = new Attachment(INVALID_CSV_FILE.toString());
+        CommandResult commandResult = new ImportCommand(invalidCsv).execute(model);
+
+        String expectedMessage = String.format(ImportCommand.MESSAGE_IMPORT_FAILURE, 4, "2, 3, 4, 5");
+
+        assertEquals(expectedMessage, commandResult.getFeedbackToUser());
+    }
+
+    @Test
+    public void execute_invalidFileFormatCsv_importFailure() throws CommandException {
+        Attachment invalidFileFormatCsv = new Attachment(INVALID_FORMAT_CSV_FILE.toString());
+        ImportCommand importCommand = new ImportCommand(invalidFileFormatCsv);
+
+        String expectedMessage = ImportCommand.MESSAGE_INVALID_FILE_FORMAT;
+
+        assertCommandFailure(importCommand, model, expectedMessage);
+    }
+
+    @Test
+    public void execute_missingFieldsCsv_importFailure() throws CommandException {
+        Attachment missingFieldsCsv = new Attachment(MISSING_FIELDS_CSV_FILE.toString());
+        ImportCommand importCommand = new ImportCommand(missingFieldsCsv);
+
+        String expectedMessage = String.format(ImportCommand.MESSAGE_MISSING_FIELDS, "gpa");
+
+        assertCommandFailure(importCommand, model, expectedMessage);
+    }
+
+    @Test
+    public void equals() {
+        Attachment firstAttachment = new Attachment(VALID_CSV_FILE.toString());
+        Attachment secondAttachment = new Attachment(INVALID_CSV_FILE.toString());
+
+        ImportCommand importFirstCommand = new ImportCommand(firstAttachment);
+        ImportCommand importSecondCommand = new ImportCommand(secondAttachment);
+
+        assertTrue(importFirstCommand.equals(importFirstCommand));
+
+        ImportCommand importFirstCommandCopy = new ImportCommand(firstAttachment);
+        assertTrue(importFirstCommand.equals(importFirstCommandCopy));
+
+        assertFalse(importFirstCommand.equals(1));
+
+        assertFalse(importFirstCommand.equals(null));
+
+        assertFalse(importFirstCommand.equals(importSecondCommand));
+    }
+
+    @Test
+    public void toStringMethod() {
+        Attachment attachment = new Attachment(VALID_CSV_FILE.toString());
+        ImportCommand importCommand = new ImportCommand(attachment);
+        String expected = ImportCommand.class.getCanonicalName() + "{attachment=" + attachment + "}";
+        assertEquals(expected, importCommand.toString());
+    }
+
+}