294 lines
9.1 KiB
Zig
294 lines
9.1 KiB
Zig
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const vga = @import("../../../src/kernel/vga.zig");
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const arch = @import("../../../src/kernel/arch.zig").internals;
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const expectEqual = @import("std").testing.expectEqual;
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test "entryColour" {
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var fg: u4 = vga.COLOUR_BLACK;
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var bg: u4 = vga.COLOUR_BLACK;
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var res: u8 = vga.entryColour(fg, bg);
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expectEqual(u8(0x00), res);
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fg = vga.COLOUR_LIGHT_GREEN;
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bg = vga.COLOUR_BLACK;
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res = vga.entryColour(fg, bg);
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expectEqual(u8(0x0A), res);
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fg = vga.COLOUR_BLACK;
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bg = vga.COLOUR_LIGHT_GREEN;
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res = vga.entryColour(fg, bg);
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expectEqual(u8(0xA0), res);
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fg = vga.COLOUR_BROWN;
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bg = vga.COLOUR_LIGHT_GREEN;
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res = vga.entryColour(fg, bg);
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expectEqual(u8(0xA6), res);
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}
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test "entry" {
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var colour: u8 = vga.entryColour(vga.COLOUR_BROWN, vga.COLOUR_LIGHT_GREEN);
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expectEqual(u8(0xA6), colour);
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// Character '0' is 0x30
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var video_entry: u16 = vga.entry('0', colour);
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expectEqual(u16(0xA630), video_entry);
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video_entry = vga.entry(0x55, colour);
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expectEqual(u16(0xA655), video_entry);
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}
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test "updateCursor width out of bounds" {
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const x: u16 = vga.WIDTH;
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const y: u16 = 0;
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const max_cursor: u16 = (vga.HEIGHT - 1) * vga.WIDTH + (vga.WIDTH - 1);
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const expected_upper: u8 = @truncate(u8, (max_cursor >> 8) & 0x00FF);
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const expected_lower: u8 = @truncate(u8, max_cursor & 0x00FF);
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arch.initTest();
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defer arch.freeTest();
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// Mocking out the arch.outb calls for changing the hardware cursor:
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_LOW,
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vga.PORT_DATA, expected_lower,
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_HIGH,
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vga.PORT_DATA, expected_upper);
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vga.updateCursor(x, y);
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}
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test "updateCursor height out of bounds" {
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const x: u16 = 0;
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const y: u16 = vga.HEIGHT;
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const max_cursor: u16 = (vga.HEIGHT - 1) * vga.WIDTH + (vga.WIDTH - 1);
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const expected_upper: u8 = @truncate(u8, (max_cursor >> 8) & 0x00FF);
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const expected_lower: u8 = @truncate(u8, max_cursor & 0x00FF);
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arch.initTest();
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defer arch.freeTest();
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// Mocking out the arch.outb calls for changing the hardware cursor:
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_LOW,
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vga.PORT_DATA, expected_lower,
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_HIGH,
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vga.PORT_DATA, expected_upper);
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vga.updateCursor(x, y);
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}
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test "updateCursor width and height out of bounds" {
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const x: u16 = vga.WIDTH;
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const y: u16 = vga.HEIGHT;
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const max_cursor: u16 = (vga.HEIGHT - 1) * vga.WIDTH + (vga.WIDTH - 1);
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const expected_upper: u8 = @truncate(u8, (max_cursor >> 8) & 0x00FF);
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const expected_lower: u8 = @truncate(u8, max_cursor & 0x00FF);
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arch.initTest();
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defer arch.freeTest();
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// Mocking out the arch.outb calls for changing the hardware cursor:
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_LOW,
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vga.PORT_DATA, expected_lower,
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_HIGH,
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vga.PORT_DATA, expected_upper);
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vga.updateCursor(x, y);
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}
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test "updateCursor width-1 and height out of bounds" {
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const x: u16 = vga.WIDTH - 1;
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const y: u16 = vga.HEIGHT;
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const max_cursor: u16 = (vga.HEIGHT - 1) * vga.WIDTH + (vga.WIDTH - 1);
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const expected_upper: u8 = @truncate(u8, (max_cursor >> 8) & 0x00FF);
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const expected_lower: u8 = @truncate(u8, max_cursor & 0x00FF);
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arch.initTest();
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defer arch.freeTest();
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// Mocking out the arch.outb calls for changing the hardware cursor:
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_LOW,
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vga.PORT_DATA, expected_lower,
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_HIGH,
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vga.PORT_DATA, expected_upper);
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vga.updateCursor(x, y);
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}
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test "updateCursor width and height-1 out of bounds" {
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const x: u16 = vga.WIDTH;
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const y: u16 = vga.HEIGHT - 1;
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const max_cursor: u16 = (vga.HEIGHT - 1) * vga.WIDTH + (vga.WIDTH - 1);
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const expected_upper: u8 = @truncate(u8, (max_cursor >> 8) & 0x00FF);
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const expected_lower: u8 = @truncate(u8, max_cursor & 0x00FF);
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arch.initTest();
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defer arch.freeTest();
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// Mocking out the arch.outb calls for changing the hardware cursor:
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_LOW,
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vga.PORT_DATA, expected_lower,
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_HIGH,
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vga.PORT_DATA, expected_upper);
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vga.updateCursor(x, y);
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}
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test "updateCursor in bounds" {
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var x: u16 = 0x000A;
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var y: u16 = 0x000A;
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const expected: u16 = y * vga.WIDTH + x;
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var expected_upper: u8 = @truncate(u8, (expected >> 8) & 0x00FF);
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var expected_lower: u8 = @truncate(u8, expected & 0x00FF);
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arch.initTest();
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defer arch.freeTest();
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// Mocking out the arch.outb calls for changing the hardware cursor:
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_LOW,
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vga.PORT_DATA, expected_lower,
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_HIGH,
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vga.PORT_DATA, expected_upper);
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vga.updateCursor(x, y);
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}
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test "getCursor 1: 10" {
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const expect: u16 = u16(10);
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// Mocking out the arch.outb and arch.inb calls for getting the hardware cursor:
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arch.initTest();
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defer arch.freeTest();
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_LOW);
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arch.addTestParams("inb",
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vga.PORT_DATA, u8(10));
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_HIGH);
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arch.addTestParams("inb",
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vga.PORT_DATA, u8(0));
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const actual: u16 = vga.getCursor();
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expectEqual(expect, actual);
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}
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test "getCursor 2: 0xBEEF" {
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const expect: u16 = u16(0xBEEF);
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// Mocking out the arch.outb and arch.inb calls for getting the hardware cursor:
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arch.initTest();
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defer arch.freeTest();
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_LOW);
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arch.addTestParams("inb",
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vga.PORT_DATA, u8(0xEF));
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_LOCATION_HIGH);
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arch.addTestParams("inb",
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vga.PORT_DATA, u8(0xBE));
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const actual: u16 = vga.getCursor();
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expectEqual(expect, actual);
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}
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test "enableCursor all" {
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arch.initTest();
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defer arch.freeTest();
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// Need to init the cursor start and end positions, so call the vga.init() to set this up
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_MAXIMUM_SCAN_LINE,
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vga.PORT_DATA, vga.CURSOR_SCANLINE_END,
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vga.PORT_ADDRESS, vga.REG_CURSOR_START,
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vga.PORT_DATA, vga.CURSOR_SCANLINE_MIDDLE,
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vga.PORT_ADDRESS, vga.REG_CURSOR_END,
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vga.PORT_DATA, vga.CURSOR_SCANLINE_END,
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// Mocking out the arch.outb calls for enabling the cursor:
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// These are the default cursor positions from vga.init()
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vga.PORT_ADDRESS, vga.REG_CURSOR_START,
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vga.PORT_DATA, vga.CURSOR_SCANLINE_MIDDLE,
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vga.PORT_ADDRESS, vga.REG_CURSOR_END,
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vga.PORT_DATA, vga.CURSOR_SCANLINE_END);
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vga.init();
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vga.enableCursor();
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}
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test "disableCursor all" {
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arch.initTest();
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defer arch.freeTest();
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// Mocking out the arch.outb calls for disabling the cursor:
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_START,
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vga.PORT_DATA, vga.CURSOR_DISABLE);
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vga.disableCursor();
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}
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test "setCursorShape UNDERLINE" {
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arch.initTest();
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defer arch.freeTest();
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// Mocking out the arch.outb calls for setting the cursor shape to underline:
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// This will also check that the scan line variables were set properly as these are using in
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// the arch.outb call
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_START,
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vga.PORT_DATA, vga.CURSOR_SCANLINE_MIDDLE,
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vga.PORT_ADDRESS, vga.REG_CURSOR_END,
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vga.PORT_DATA, vga.CURSOR_SCANLINE_END);
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vga.setCursorShape(vga.CursorShape.UNDERLINE);
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}
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test "setCursorShape BLOCK" {
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arch.initTest();
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defer arch.freeTest();
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// Mocking out the arch.outb calls for setting the cursor shape to block:
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// This will also check that the scan line variables were set properly as these are using in
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// the arch.outb call
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_CURSOR_START,
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vga.PORT_DATA, vga.CURSOR_SCANLINE_START,
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vga.PORT_ADDRESS, vga.REG_CURSOR_END,
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vga.PORT_DATA, vga.CURSOR_SCANLINE_END);
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vga.setCursorShape(vga.CursorShape.BLOCK);
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}
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test "init all" {
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arch.initTest();
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defer arch.freeTest();
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// Mocking out the arch.outb calls for setting the cursor max scan line and the shape to block:
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// This will also check that the scan line variables were set properly as these are using in
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// the arch.outb call for setting the cursor shape.
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arch.addTestParams("outb",
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vga.PORT_ADDRESS, vga.REG_MAXIMUM_SCAN_LINE,
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vga.PORT_DATA, vga.CURSOR_SCANLINE_END,
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vga.PORT_ADDRESS, vga.REG_CURSOR_START,
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vga.PORT_DATA, vga.CURSOR_SCANLINE_MIDDLE,
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vga.PORT_ADDRESS, vga.REG_CURSOR_END,
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vga.PORT_DATA, vga.CURSOR_SCANLINE_END);
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vga.init();
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}
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